Publications

Dmytro Afanasiev, Jorrit R. Hortensius, Mattias Matthiesen, Samuel Mañas-Valero, Makars Šiškins, Martin Lee, Edouard Lesne, Herre S. J. van der Zant, Peter G. Steeneken, Boris A. Ivanov, Eugenio Coronado and Andrea Caviglia

Science advances 7 23 (2021)

Ultrafast optical control of magnetic anisotropy in a van der Waals antiferromagnet activates a sub-THz two-dimensional magnon.

Eylon Persky, Naor Vardi, Ana Mafalda R. V. L. Monteiro, Thierry C. van Thiel, Hyeok Yoon, Yanwu Xie, Benoît Fauqué, Andrea Caviglia, Harold Y. Hwang, Kamran Behnia, Jonathan Ruhman and Beena Kalisky

Nature communications 12 1, 3311 (2021)

In systems near phase transitions, macroscopic properties often follow algebraic scaling laws, determined by the dimensionality and the underlying symmetries of the system. The emergence of such universal scaling implies that microscopic details are irrelevant. Here, we locally investigate the…

D. Afanasiev, J. R. Hortensius, B. A. Ivanov, A. Sasani, E. Bousquet, Y. M. Blanter, R. V. Mikhaylovskiy, A. V. Kimel and Andrea Caviglia

Nature materials 20 5, 607-611 (2021)

Resonant ultrafast excitation of infrared-active phonons is a powerful technique with which to control the electronic properties of materials that leads to remarkable phenomena such as the light-induced enhancement of superconductivity1,2 , switching of ferroelectric polarization3,4 and ultrafast…

A. Stupakiewicz, C. S. Davies, K. Szerenos, D. Afanasiev, K. S. Rabinovich, A. V. Boris, Andrea Caviglia, A. V. Kimel and A. Kirilyuk

Nature physics 17 4, 489-492 (2021)

Identifying efficient pathways to control and modify the order parameter of a macroscopic phase in materials is an important ongoing challenge. One way to do this is via the excitation of a high-frequency mode that couples to the order, and this is the ultimate goal of the field of ultrafast phase…

T. C. van Thiel, W. Brzezicki, C. Autieri, J. R. Hortensius, D. Afanasiev, N. Gauquelin, D. Jannis, N. Janssen, D. J. Groenendijk, J. Fatermans, S. Van Aert, J. Verbeeck, M. Cuoco and Andrea Caviglia

Physical review letters 127 12, 127202 (2021)

In oxide heterostructures, different materials are integrated into a single artificial crystal, resulting in a breaking of inversion-symmetry across the heterointerfaces. A notable example is the interface between polar and non-polar materials, where valence discontinuities lead to otherwise…

J.R. Hortensius, D. Afanasiev, M. Matthiesen, R. Leenders, R. Citro, A. V. Kimel, R. V. Mikhaylovskiy, B. A. Ivanov and Andrea Caviglia

Nature physics 17 9, 1001-1006 (2021)

Magnonics is a research field complementary to spintronics, in which the quanta of spin waves (magnons) replace electrons as information carriers, promising lower dissipation1,2,3. The development of ultrafast, nanoscale magnonic logic circuits calls for new tools and materials to generate coherent …

J. R. Hortensius, D. Afanasiev, A. Sasani, E. Bousquet and Andrea Caviglia

npj quantum materials 5 1, 95 (2020)

Strain engineering has been extended recently to the picosecond timescales, driving ultrafast metal–insulator phase transitions and the propagation of ultrasonic demagnetization fronts. However, the nonlinear lattice dynamics underpinning interfacial optoelectronic phase switching have not yet…

D. J. Groenendijk, C. Autieri, T. C. van Thiel, W. Brzezicki, J. R. Hortensius, D. Afanasiev, N. Gauquelin, P. Barone, K. H. W. van den Bos, S. van Aert, J. Verbeeck, A. Filippetti, S. Picozzi, M. Cuoco and Andrea Caviglia

Physical review research 2 2, 023404 (2020)

Three-dimensional strontium ruthenate (SrRuO3) is an itinerant ferromagnet that features Weyl points acting as sources of emergent magnetic fields, anomalous Hall conductivity, and unconventional spin dynamics. Integrating SrRuO3 in oxide heterostructures is potentially a novel route to engineer…

M. Matthiesen, D. Afanasiev, J. R. Hortensius, T. C. van Thiel, R. Medapalli, E. E. Fullerton and Andrea Caviglia

Applied physics letters 116 21, 212405 (2020)

In bilayers of ferromagnets and heavy metals, which form the so-called spintronic emitters, the phenomena of ultrafast demagnetization and the inverse spin Hall effect (ISHE) conspire to yield remarkably efficient emission of electric pulses in the THz band. Light-induced demagnetization of the…

T C van Thiel, D J Groenendijk and Andrea Caviglia

JPhys materials 3 2, 025005 (2020)

The correlated 4d transition metal oxide SrRuO ₃ (SRO) features an anomalous Hall effect that originates from momentum-space sources of Berry curvature and depends sensitively on the magnetization. Here, we exploit this sensitivity and realize an epitaxial extraordinary Hall balance…

D. Davidovikj, D. J. Groenendijk, A. M. R. V. L. Monteiro, A. Dijkhoff, D. Afanasiev, M. Šiškins, M. Lee, Y. Huang, E. van Heumen, H. S. J. van der Zant, Andrea Caviglia and P. G. Steeneken

Communications physics 3 1, 163 (2020)

Complex oxide thin films and heterostructures exhibit a variety of electronic phases, often controlled by the mechanical coupling between film and substrate. Recently it has become possible to isolate epitaxially grown single-crystalline layers of these materials, enabling the study of their…

Dirk J. Groenendijk, Nicola Manca, Joeri de Bruijckere, Ana Mafalda R. V. L. Monteiro, Rocco Gaudenzi, Herre S. J. van der Zant and Andrea Caviglia

The European physical journal plus 135 8, 627 (2020)

SrIrO3, the three-dimensional member of the Ruddlesden–Popper iridates, is a paramagnetic semimetal characterised by a the delicate interplay between spin–orbit coupling and Coulomb repulsion. In this work, we study the anisotropic magnetoresistance (AMR) of SrIrO3 thin films, which is closely…

Thierry C. van Thiel, Jennifer Fowlie, Carmine Autieri, Nicola Manca, Makars Šiškins, Dmytro Afanasiev, Stefano Gariglio and Andrea Caviglia

ACS Materials Letters 2 4, 389-394 (2020)

Oxide heterointerfaces constitute a rich platform for realizing novel functionalities in condensed matter. A key aspect is the strong link between structural and electronic properties, which can be modified by interfacing materials with distinct lattice symmetries. Here, we determine the effect of…

Stefano Gariglio, Andrea Caviglia, Jean-Marc Triscone and M Gabay

Reports on Progress in Physics 82 012501 (2019)

Within the last twenty years, the status of the spin–orbit interaction has evolved from that of a simple atomic contribution to a key effect that modifies the electronic band structure of materials. It is regarded as one of the basic ingredients for spintronics, locking together charge and spin…

A. M. R. V. L. Monteiro, M. Vivek, D. J. Groenendijk, P. Bruneel, I. Leermakers, U. Zeitler, M. Gabay and Andrea Caviglia

Physical review. B. 99 20, 201102 (2019)

Quantum confinement at complex oxide interfaces establishes an intricate hierarchy of the strongly correlated d orbitals which is widely recognized as a source of emergent physics. The most prominent example is the (001) LaAlO3/SrTiO3 (LAO/STO) interface, which features a dome-shaped phase diagram…

Nicola Manca, Daniel Bothner, Ana M. R. V. L. Monteiro, Dejan Davidovikj, Yildiz G. Sağlam, Mark Jenkins, Marc Gabay, Gary A. Steele and Andrea Caviglia

Physical review letters 122 3, 036801 (2019)

We explore the superconducting phase diagram of the two-dimensional electron system at the LaAlO3=SrTiO3 interface by monitoring the frequencies of the cavity modes of a coplanar waveguide resonator fabricated in the interface itself. We determine the phase diagram of the superconducting transition …

Nicola Manca, Giordano Mattoni, Marco Pelassa, Warner J. Venstra, Herre S. J. van der Zant and Andrea Caviglia

ACS applied materials & interfaces 11 47, 44438-44443 (2019)

Strain engineering is one of the most effective approaches to manipulate the physical state of materials, control their electronic properties, and enable crucial functionalities. Because of their rich phase diagrams arising from competing ground states, quantum materials are an ideal playground for …

D. Afanasiev, A. Gatilova, D. J. Groenendijk, B. A. Ivanov, Marta Gibert Gutierrez, Stefano Gariglio, J. Mentink, J. Li, N. Dasari, M. Eckstein, Th. Rasing, Andrea Caviglia and A. V. Kimel

Physical Review X 9 021020 (2019)

Ultrafast photodoping of the Mott insulators, possessing strong correlation between electronic and magnetic degrees of freedom, holds promise for launching an ultrafast dynamics of spins which cannot be described in terms of conventional models of ultrafast magnetism. Here we study the ultrafast…

Giordano Mattoni, Alessio Filippetti, Nicola Manca, Pavlo Zubko and Andrea Caviglia

Physical review materials 2 5, 053402 (2018)

Tungsten trioxide (WO3) is a versatile material with widespread applications ranging from electrochromics and optoelectronics to water splitting and catalysis of chemical reactions. For technological applications, thin films of WO3 are particularly appealing, taking advantage from a high…

G. Mattoni, N. Manca, M. Hadjimichael, P. Zubko, A. J. H. van der Torren, C. Yin, S. Catalano, Marta Gibert Gutierrez, F. Maccherozzi, Y. Liu, S. S. Dhesi and Andrea Caviglia

Physical review materials 2 8, 085002 (2018)

Strongly correlated materials show unique solid-state phase transitions with rich nanoscale phenomenology that can be controlled by external stimuli. Particularly interesting is the case of light–matter interaction in the proximity of the metal–insulator transition of heteroepitaxial…

Nicola Manca, Dirk J. Groenendijk, Ilaria Pallecchi, Carmine Autieri, Lucas M. K. Tang, Francesca Telesio, Giordano Mattoni, Alix McCollam, Silvia Picozzi and Andrea Caviglia

Physical review. B. 97 8, 081105 (2018)

issue. The partial occupation of numerous electron and hole bands can result in properties that are seemingly in contrast with one another, complicating the extraction of the transport coefficients of different bands. The 5d oxide SrIrO3 hosts parabolic bands of heavy holes and light electrons in…

Giordano Mattoni, Bas de Jong, Nicola Manca, Massimo Tomellini and Andrea Caviglia

ACS applied nano materials 1 7, 3446-3452 (2018)

Hydrogen-related technologies are rapidly developing, driven by the necessity of efficient and high-density energy storage. This poses new challenges to the detection of dangerous gases, in particular the realization of cheap, sensitive, and fast hydrogen sensors. Several materials are being…

Holger Thierschmann, Emre Mulazimoglu, Nicola Manca, Srijit Goswami, Teun M. Klapwijk and Andrea Caviglia

Nature communications 9 1, 2276 (2018)

One of the hallmark experiments of quantum transport is the observation of the quantized resistance in a point contact formed with split gates in GaAs/AlGaAs heterostructures. Being carried out on a single material, they represent in an ideal manner equilibrium reservoirs which are connected only…

M. Först, K. R. Beyerlein, R. Mankowsky, W. Hu, G. Mattoni, Sara Catalano, Marta Gibert Gutierrez, O. Yefanov, J. N. Clark, A. Frano, J. M. Glownia, M. Chollet, H. Lemke, B. Moser, S. P. Collins, S. S. Dhesi, Andrea Caviglia, Jean-Marc Triscone and A. Cavalleri

Physical review letters 118 2, 027401 (2017)

Selective optical excitation of a substrate lattice can drive phase changes across heterointerfaces. This phenomenon is a nonequilibrium analogue of static strain control in heterostructures and may lead to new applications in optically controlled phase change devices. Here, we make use of…

D. Davidovikj, N. Manca, H. S. J. van der Zant, Andrea Caviglia and G. A. Steele

Physical review. B. 95 21, 214513 (2017)

Superconducting coplanar waveguide (CPW) resonators are powerful and versatile tools used in areas ranging from radiation detection to circuit quantum electrodynamics. Their potential for low intrinsic losses makes them attractive as sensitive probes of electronic properties of bulk materials and…

Nicola Manca, Luca Pellegrino, Teruo Kanki, Warner J. Venstra, Giordano Mattoni, Yoshiyuki Higuchi, Hidekazu Tanaka, Andrea Caviglia and Daniele Marré

Advanced materials 29 35, 1701618 (2017)

Micro- and nano-electromechanical resonators are a fundamental building block of modern technology, used in environmental monitoring, robotics, medical tools as well as fundamental science. These devices rely on dedicated electronics to generate their driving signal, resulting in an increased…

A. M. R. V. L. Monteiro, D. J. Groenendijk, N. Manca, E. Mulazimoglu, S. Goswami, Ya. Blanter, L. M. K. Vandersypen and Andrea Caviglia

Nano letters 17 2, 715-720 (2017)

Novel physical phenomena arising at the interface of complex oxide heterostructures offer exciting opportunities for the development of future electronic devices. Using the prototypical LaAlO3/SrTiO3 interface as a model system, we employ a single-step lithographic process to realize gate-tunable…

D. J. Groenendijk, C. Autieri, J. Girovsky, M. Carmen Martinez-Velarte, N. Manca, G. Mattoni, A. M. R. V. L. Monteiro, N. Gauquelin, J. Verbeeck, A. F. Otte, M. Gabay, S. Picozzi and Andrea Caviglia

Physical review letters 119 25, 256403 (2017)

We investigate the thickness-dependent electronic properties of ultrathin SrIrO3 and discover a transition from a semimetallic to a correlated insulating state below 4 unit cells. Low-temperature magnetoconductance measurements show that spin fluctuations in the semimetallic state are significantly …

A. M. R. V. L. Monteiro, D. J. Groenendijk, I. Groen, J. de Bruijckere, R. Gaudenzi, H. S. J. van der Zant and Andrea Caviglia

Physical review. B. 96 2, 020504 (2017)

We report on the discovery and transport study of the superconducting ground state present at the (111)LaAlO3/SrTiO3 (LAO/STO) interface. The superconducting transition is consistent with a BerezinskiiKosterlitz-Thouless transition and its two-dimensional nature is further corroborated by the…

Giordano Mattoni, David J. Baek, Nicola Manca, Nils Verhagen, Dirk J. Groenendijk, Lena F. Kourkoutis, Alessio Filippetti and Andrea Caviglia

ACS applied materials & interfaces 9 48, 42336-42343 (2017)

Interfaces between complex oxides constitute a unique playground for two-dimensional electron systems (2DESs), where superconductivity and magnetism can arise from combinations of bulk insulators. The 2DES at the LaAlO3/SrTiO3 interface is one of the most studied in this regard, and its origin is…

D. J. Groenendijk, N. Manca, G. Mattoni, L. Kootstra, Stefano Gariglio, Y. Huang, E. van Heumen and Andrea Caviglia

Applied physics letters 109 4, 041906 (2016)

Obtaining high-quality thin films of 5d transition metal oxides is essential to explore the exotic semimetallic and topological phases predicted to arise from the combination of strong electron correlations and spin-orbit coupling. Here, we show that the transport properties of SrIrO3 thin films,…

Stefano Gariglio, M Scheurer, J Schmalian, A.M.R.V.L. Monterio, S Goswami and Andrea Caviglia

The Oxford Handbook of Small Superconductors, Cha7 (2016)

G. Mattoni, Pavlo Zubko, F. Maccherozzi, A.J.H. van der Torren, D. B. Boltje, M. Hadjimichael, N. Manca, Sara Catalano, Marta Gibert Gutierrez, Y. Liu, J. Aarts, Jean-Marc Triscone, S. S. Dhesi and Andrea Caviglia

Nature communications 7, 13141 (2016)

Nucleation processes of mixed-phase states are an intrinsic characteristic of first-order phase transitions, typically related to local symmetry breaking. Direct observation of emerging mixed-phase regions in materials showing a first-order metal-insulator transition (MIT) offers unique…

Srijit Goswami, Emre Mulazimoglu, Ana M. R. V. L. Monteiro, Roman Wölbing, Dieter Koelle, Reinhold Kleiner, Ya. M. Blanter, Lieven M. K. Vandersypen and Andrea Caviglia

Nature nanotechnology 11 10, 861-865 (2016)

The two-dimensional superconductor formed at the interface between the complex oxides, lanthanum aluminate (LAO) and strontium titanate (STO) [1] has several intriguing properties [2–6] that set it apart from conventional superconductors. Most notably, an electric field can be used to tune its…

M. Först, Andrea Caviglia, Raoul Scherwitzl, R. Mankowsky, Pavlo Zubko, V. Khanna, H. Bromberger, S. B. Wilkins, Y.-D. Chuang, W. S. Lee, W. F. Schlotter, J. J. Turner, G. L. Dakovski, M. P. Minitti, J. Robinson, S. R. Clark, D. Jaksch, Jean-Marc Triscone, J. P. Hill, S. S. Dhesi and A. Cavalleri

Nature materials 14 9, 883-888 (2015)

Static strain in complex oxide heterostructures1, 2 has been extensively used to engineer electronic and magnetic properties at equilibrium3. In the same spirit, deformations of the crystal lattice with light may be used to achieve functional control across heterointerfaces dynamically4. Here, by…

Srijit Goswami, Emre Mulazimoglu, Lieven M. K. Vandersypen and Andrea Caviglia

Nano letters 15 4, 2627-2632 (2015)

We develop a robust and versatile platform to define nanostructures at oxide interfaces via patterned top gates. Using LaAlO3/SrTiO3 as a model system, we demonstrate controllable electrostatic confinement of electrons to nanoscale regions in the conducting interface. The excellent gate response,…

M. Diez, A. M. R. V. L. Monteiro, G. Mattoni, E. Cobanera, T. Hyart, E. Mulazimoglu, N. Bovenzi, C. W. J. Beenakker and Andrea Caviglia

Physical review letters 115 1, 016803 (2015)

The LaAlO3=SrTiO3 interface hosts a two-dimensional electron system that is unusually sensitive to the application of an in-plane magnetic field. Low-temperature experiments have revealed a giant negative magnetoresistance (dropping by 70%), attributed to a magnetic-field induced transition between …

Alexandre Fete, Claudia Cancellieri, Danfeng Li, Daniela Stornaiuolo, Andrea Caviglia, Stefano Gariglio and Jean-Marc Triscone

Applied physics letters 106 5, 051604 (2015)

We have studied the electronic properties of the 2D electron liquid present at the LaAlO3/SrTiO3 interface in series of samples prepared at different growth temperatures. We observe that interfaces fabricated at 650 °C exhibit the highest low temperature mobility (…

M. Först, R. I. Tobey, H. Bromberger, S. B. Wilkins, V. Khanna, Andrea Caviglia, Y.-D. Chuang, W. S. Lee, W. F. Schlotter, J. J. Turner, M. P. Minitti, O. Krupin, Z. J. Xu, J. S. Wen, G. D. Gu, S. S. Dhesi, A. Cavalleri and J. P. Hill

Physical review letters 112 15, 157002 (2014)

We report femtosecond resonant soft x-ray diffraction measurements of the dynamics of the charge order and of the crystal lattice in nonsuperconducting, stripe-ordered La 1.875 Ba 0.125 CuO 4 . Excitation of the in-plane Cu-O stretching phonon with a midinfrared pulse has been previously shown to…

Andrea Caviglia, M. Först, Raoul Scherwitzl, V. Khanna, H. Bromberger, R. Mankowsky, R. Singla, Y.-D. Chuang, W. S. Lee, O. Krupin, W. F. Schlotter, J. J. Turner, G. L. Dakovski, M. P. Minitti, J. Robinson, V. Scagnoli, S. B. Wilkins, S. A. Cavill, Marta Gibert Gutierrez, Stefano Gariglio, Pavlo Zubko, Jean-Marc Triscone, J. P. Hill, S. S. Dhesi and A. Cavalleri

Physical review. B, Condensed matter and materials physics 88 22, 220401-220401-5 (2013)

Using ultrafast resonant soft x-ray diffraction, we demonstrate photoinduced melting of antiferromagnetic order in the correlated electron insulator NdNiO3. Time-dependent analysis of the resonant diffraction spectra allows us to followthe temporal evolution of the charge imbalance between…

Daniela Stornaiuolo, Stefano Gariglio, Nuno Jose Guimaraes Couto, Alexandre Fete, Andrea Caviglia, Gabriel Seyfarth, Didier Jaccard, Alberto Morpurgo and Jean-Marc Triscone

Applied physics letters 101 22, 222601 (2012)

Andrea Caviglia, Raoul Scherwitzl, P. Popovich, W. Hu, H. Bromberger, R. Singla, M. Mitrano, M. Hoffmann, S. Kaiser, Pavlo Zubko, Stefano Gariglio, Jean-Marc Triscone, M. Först and A. Cavalleri

Physical review letters 108 13, 5 p. (2012)

Alexandre Fete, Stefano Gariglio, Andrea Caviglia, Jean-Marc Triscone and M. Gabay

Physical review. B, Condensed matter and materials physics 86 20 (2012)

Stefano Gariglio, Jean-Marc Triscone and Andrea Caviglia

Physics 4, 59 (2011)

Claudia Cancellieri, D. Fontaine, Stefano Gariglio, Nicolas Reyren, Andrea Caviglia, Alexandre Fete, S. Leake, S. Pauli, P. Willmott, M. Stengel, Ph. Ghosez and Jean-Marc Triscone

Physical review letters 107 5, 056102 (2011)

We present a direct comparison between experimental data and ab-initio calculations for the electrostrictive effect in the polar LaAlO₃ layer grown on SrTiO₃ substrates. From the structural data, a complete screening of the LaAlO₃ dipole field is observed for film …

Andrea Caviglia, J. Mannhart and Jean-Marc Triscone

Physics in Canada 67 2, 116-118,122 (2011)

R. Jany, M. Breitschaft, G. Hammerl, A. Horsche, C. Richter, S. Paetel, J. Mannhart, Nicolas Stucki, Nicolas Reyren, Stefano Gariglio, Pavlo Zubko, Andrea Caviglia and Jean-Marc Triscone

Applied Physics Letters 96 18, 183504 (2010)

Using the metal-insulator transition that takes place as a function of carrier density at the LaAlO3-SrTiO3 interface, oxide diodes have been fabricated with room-temperature breakdown voltages of up to 200 V. With applied voltage, the capacitance of the diodes changes by a factor of 150. The…

Andrea Caviglia

Thèse (2010)

Dans cette thèse nous avons étudié l’interface entre un isolant, LaAlO3, et un semi-conducteur, SrTiO3, où un gaz électronique à été découvert. Dans cette thèse nous avons montré que cette interface devient supraconductrice à des températures inférieures à 300 mK et que le plan…

I. Pallecchi, M. Codda, E. Galleani d'Agliano, D. Marré, Andrea Caviglia, Nicolas Reyren, Stefano Gariglio and Jean-Marc Triscone

Physical review. B, Condensed matter and materials physics 81 8, 085414 (2010)

Andrea Caviglia, M. Gabay, Stefano Gariglio, Nicolas Reyren, Claudia Cancellieri and Jean-Marc Triscone

Physical review letters 104 12, 126803 (2010)

The quasi-two-dimensional electron gas found at the LaAlO3/SrTiO3 interface offers exciting new functionalities, such as tunable superconductivity, and has been proposed as a new nanoelectronics fabrication platform. Here we lay out a new example of an electronic property arising from the…

Claudia Cancellieri, Nicolas Reyren, Stefano Gariglio, Andrea Caviglia, Alexandre Fete and Jean-Marc Triscone

Europhysics letters 91 1, 17004 (2010)

Andrea Caviglia, Stefano Gariglio, Claudia Cancellieri, Benjamin Sacepe, Alexandre Fete, Nicolas Reyren, M. Gabay, Alberto Morpurgo and Jean-Marc Triscone

Physical review letters 105 23, 236802 (2010)

We report on a study of magnetotransport in LaAlO₃/SrTiO₃ interfaces characterized by mobilities of the order of several thousands cm2/V s. We observe Shubnikov–de Haas oscillations whose period depends only on the perpendicular component of the magnetic field. This…

T. Schneider, Andrea Caviglia, Stefano Gariglio, Nicolas Reyren and Jean-Marc Triscone

Physical Review. B, Condensed Matter 79 18, 184502 (2009)

Recently superconductivity at the interface between the insulators LaAlO3 and SrTiO3 has been tuned with the electric-field effect to an unprecedented range of transition temperatures. Here we perform a detailed finite-size scaling analysis to explore the compatibility of the phase-transition line…

Stefano Gariglio, Nicolas Reyren, Andrea Caviglia and Jean-Marc Triscone

Journal of Physics. Condensed Matter 21 16, 164213 (2009)

We report on the structural characterization of LaAlO3/SrTiO3 interfaces and on their transport properties. LaAlO3 films were prepared using pulsed laser deposition onto TiO2 terminated (001) SrTiO3 substrates inducing a metallic conduction at the interface. Resistance and Hall effect measurements…

Nicolas Reyren, Stefano Gariglio, Andrea Caviglia, Didier Jaccard, T. Schneider and Jean-Marc Triscone

Applied Physics Letters 94 11, 112506 (2009)

The superconducting transport properties of the conducting LaAlO3/SrTiO3 interface have been investigated in perpendicular and parallel magnetic fields. A large anisotropy in the transport properties is measured and the two-dimensional nature of the superconducting gas is confirmed. Analyses of the …

S. Thiel, C. W. Schneider, L. F. Kourkoutis, Dominique Muller, Nicolas Reyren, Andrea Caviglia, Stefano Gariglio, Jean-Marc Triscone and J. Mannhart

Physical review letters 102 4, 046809 (2009)

We report experimental investigations of the effects of microstructural defects and of disorder on the properties of 2D electron gases at oxide interfaces. The cross section for scattering of electrons at dislocations in LaAlO₃/SrTiO₃ interfaces has been measured and found to…

Andrea Caviglia, Stefano Gariglio, Nicolas Reyren, Didier Jaccard, T. Schneider, M. Gabay, S. Thiel, G. Hammerl, J. Mannhart and Jean-Marc Triscone

Nature 456 7222, 624-627 (2008)

Interfaces between complex oxides are emerging as one of the most interesting systems in condensed matter physics1. In this special setting, in which translational symmetry is artificially broken, a variety of new and unusual electronic phases can be promoted2. Theoretical studies predict complex…

Nicolas Reyren, S. Thiel, Andrea Caviglia, L. F. Kourkoutis, G. Hammerl, C. Richter, C. W. Schneider, T. Kopp, Anna-Sabina Ruetschi, Didier Jaccard, M. Gabay, D. A. Muller, Jean-Marc Triscone and J. Mannhart

Science 317 5842, 1196-1199 (2007)

At interfaces between complex oxides, electronic systems with unusual electronic properties can be generated. We report on superconductivity in the electron gas formed at the interface between two insulating dielectric perovskite oxides, LaAlO3 and SrTiO3. The behavior of the electron gas is that…

I. Pallecchi, L. Pellegrino, Andrea Caviglia, E. Bellingeri, G. Canu, G. C. Gazzadi, A. S. Siri and D. Marré

Physical review. B, Condensed matter and materials physics. 74 1, 014434 (2006)

I. Pallecchi, E. Bellingeri, G. Canu, Andrea Caviglia, A. S. Siri and D. Marré

Journal of applied physics 99 11, 114508 (2006)

We fabricate micrometric constrictions in manganite epitaxial thin films by atomic force microscope local anodization. We demonstrate the possibility of realizing planar spin valve devices, exhibiting hysteretic transport behavior as a function of the external magnetic field, associated with…