UAB Digital Repository of Documents 30 records found  1 - 10nextend  jump to record: Search took 0.02 seconds. 
1.
11 p, 8.7 MB Gap anisotropy in multiband superconductors based on multiple scattering theory / Saunderson, Tom G. (University of Bristol) ; Annett, James F. (University of Bristol) ; Újfalussy, Balázs (Hungarian Academy of Sciences) ; Csire, Gabor (Institut Català de Nanociència i Nanotecnologia) ; Gradhand, Martin (University of Bristol)
We implement the Bogoliubov-de Gennes equation in a screened Korringa-Kohn-Rostoker method for solving, self-consistently, the superconducting state for three-dimensional crystals. This method combines the full complexity of the underlying electronic structure and Fermi surface geometry with a simple phenomenological parametrization for the superconductivity. [...]
2020 - 10.1103/PhysRevB.101.064510
Physical review B, Vol. 101, Issue 6 (February 2020) , art. 64510  
2.
8 p, 572.4 KB Quantitative theory of triplet pairing in the unconventional superconductor LaNiGa2 / Ghosh, Sudeep Kumar (University of Kent) ; Csire, Gabor (Institut Català de Nanociència i Nanotecnologia) ; Whittlesea, Philip (University of Kent) ; Annett, James F. (University of Bristol) ; Gradhand, Martin (University of Bristol) ; Újfalussy, Balázs (Hungarian Academy of Sciences) ; Quintanilla, Jorge (University of Kent)
The exceptionally low-symmetry crystal structures of the time-reversal symmetry-breaking superconductors LaNiC2 and LaNiGa2 lead to an internally antisymmetric nonunitary triplet state as the only possibility compatible with experiments. [...]
2020 - 10.1103/PhysRevB.101.100506
Physical review B, Vol. 101, Issue 10 (March 2020) , art. 100506  
3.
5 p, 227.7 KB Kondo screening of the spin and orbital magnetic moments of Fe impurities in Cu / Joly, Lilian (Université de Strasbourg) ; Kappler, J.P. (Synchrotron-SOLEIL) ; Ohresser, P. (Synchrotron-SOLEIL) ; Sainctavit, Philippe (Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC)) ; Henry, Y. (Université de Strasbourg) ; Gautier, F. (Université de Strasbourg) ; Schmerber, G. (Université de Strasbourg) ; Kim, D.J. (University of Warwick) ; Goyhenex, C. (Université de Strasbourg) ; Bulou, H. (Université de Strasbourg) ; Bengone, O. (Université de Strasbourg) ; Kavich, J. J. (Institut Català de Nanociència i Nanotecnologia) ; Gambardella, Pietro (ETH Zürich) ; Scheurer, F. (Université de Strasbourg)
We use x-ray magnetic circular dichroism to evidence the effect of correlations on the local impurity magnetic moment in an archetypal Kondo system, namely, a dilute Cu:Fe alloy. Applying the sum rules on the Fe L2,3 absorption edges, the evolution of the spin and orbital moments across the Kondo temperature are determined separately. [...]
2017 - 10.1103/PhysRevB.95.041108
Physical review B, Vol. 95, Issue 4 (January 2017) , art. 41108  
4.
6 p, 1.2 MB Unequivocal signatures of the crossover to Anderson localization in realistic models of disordered quasi-one-dimensional materials / López Bezanilla, Alejandro (Los Alamos National Laboratory) ; Froufe Pérez, Luis S. (University of Fribourg. Department of Physics) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Sáenz, Juan José (IKERBASQUE)
The only unequivocal known criterion for single-parameter scaling Anderson localization relies on the knowledge of the full conductance statistics. To date, theoretical studies have been restricted to model systems with symmetric scatterers, hence lacking universality. [...]
2018 - 10.1103/PhysRevB.98.235423
Physical review B, Vol. 98, Issue 23 (December 2018) , art. 235423  
5.
8 p, 1.1 MB Shubnikov-de Haas oscillations in the anomalous Hall conductivity of Chern insulators / Canonico, Luis M. (Universidade Federal Fluminense) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Rappoport, Tatiana G. (Universidade Federal Do Rio de Janeiro) ; Ferreira, Aires (York University. Department of Physics) ; Muniz, R. B. (Universidade Federal Fluminense)
The Haldane model on a honeycomb lattice is a paradigmatic example of a system featuring quantized Hall conductivity in the absence of an external magnetic field, that is, a quantum anomalous Hall effect. [...]
2018 - 10.1103/PhysRevB.98.085409
Physical review B, Vol. 98, Issue 8 (August 2018) , art. 85409  
6.
7 p, 2.8 MB Proximity-induced spin-orbit coupling in graphene/ Bi1.5Sb0.5Te1.7Se1.3 heterostructures / Jafarpisheh, S. (Peter Grünberg Institute) ; Cummings, Aron W. (Institut Català de Nanociència i Nanotecnologia) ; Watanabe, Kenji (National Institute for Material Science (Tsukuba, Japan)) ; Taniguchi, Takashi (National Institute for Material Science (Tsukuba, Japan)) ; Beschoten, Bernd (RWTH Aachen University) ; Stampfer, Cristoph (RWTH Aachen University)
The weak intrinsic spin-orbit coupling in graphene can be greatly enhanced by proximity coupling. Here, we report on the proximity-induced spin-orbit coupling in graphene transferred by hexagonal boron nitride (hBN) onto the topological insulator Bi1. [...]
2018 - 10.1103/PhysRevB.98.241402
Physical review B, Vol. 98, Issue 24 (December 2018) , art. 241402  
7.
16 p, 13.4 MB Polarization dependence of angle-resolved photoemission with submicron spatial resolution reveals emerging one-dimensionality of electrons in NbSe3 / Valbuena, Miguel Ángel (Institut Català de Nanociència i Nanotecnologia) ; Chudzinski, P. (Institute for Theoretical Physics) ; Pons, S. (École Polytechnique Fédérale de Lausanne) ; Conejeros, S. (Universidad Católica Del Norte. Departamento de Química) ; Alemany, P. (Universitat de Barcelona. Departament de Ciència de Materials i Química Física) ; Canadell Casanova, Enric (Institut de Ciència de Materials de Barcelona) ; Berger, H. (École Polytechnique Fédérale de Lausanne) ; Frantzeskakis, E. (Synchrotron SOLEIL) ; Avila, J. (Synchrotron SOLEIL) ; Asensio, M.C. (Synchrotron SOLEIL) ; Giamarchi, T. (University of Geneva. Department of Quantum Matter Physics) ; Grioni, M. (École Polytechnique Fédérale de Lausanne)
In materials with nearly commensurate band filling the electron liquid may spontaneously separate into components with distinct properties, yielding complex intra-and interunit cell ordering patterns and a reduced dimensionality. [...]
2019 - 10.1103/PhysRevB.99.075118
Physical review B, Vol. 99, Issue 7 (February 2019) , art. 75118  
8.
7 p, 3.9 MB Tunable circular dichroism and valley polarization in the modified Haldane model / Vila Tusell, Marc (Universitat Autònoma de Barcelona. Departament de Física) ; Hung, Nguyen Tuan (Tohoku University (Japó). Department of Physics) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Saito, Riichiro (Tohoku University (Japó). Department of Physics)
We study the polarization dependence of optical absorption for a modified Haldane model, which exhibits antichiral edge modes in the presence of sample boundaries and has been argued to be realizable in transition metal dichalcogenides or Weyl semimetals. [...]
2019 - 10.1103/PhysRevB.99.161404
Physical review B, Vol. 99, issue 16 (April 2019) , art. 161404  
9.
14 p, 5.9 MB Hybrid quantum anomalous Hall effect at graphene-oxide interfaces / Zanolli, Zeila (Institut Català de Nanociència i Nanotecnologia) ; Niu, C. (Peter Grünberg Institut) ; Bihlmayer, G. (Peter Grünberg Institut) ; Mokrousov, Y. (Johannes Gutenberg University Mainz) ; Mavropoulos, P. (Peter Grünberg Institut) ; Verstraete, Matthieu J. (Université de Liège) ; Blügel, S. (Peter Grünberg Institut)
Interfaces are ubiquitous in materials science, and in devices in particular. As device dimensions are constantly shrinking, understanding the physical properties emerging at interfaces is crucial to exploit them for applications, here for spintronics. [...]
2018 - 10.1103/PhysRevB.98.155404
Physical review B, Vol. 98, Issue 15 (October 2018) , art. 155404  
10.
34 p, 4.0 MB Gate electrostatics and quantum capacitance in ballistic graphene devices / Caridad, José M. (Danmarks Tekniske Universitet. Center for Nanostructured Graphene) ; Power, Stephen R. (Institut Català de Nanociència i Nanotecnologia) ; Shylau, Artsem A. (Danmarks Tekniske Universitet. Center for Nanostructured Graphene) ; Gammelgaard, Lene (Danmarks Tekniske Universitet. Center for Nanostructured Graphene) ; Jauho, Antti-Pekka (Danmarks Tekniske Universitet. Center for Nanostructured Graphene) ; Bøggild, Peter (Danmarks Tekniske Universitet. Center for Nanostructured Graphene)
We experimentally investigate the charge induction mechanism across gated, narrow, ballistic graphene devices with different degrees of edge disorder. By using magnetoconductance measurements as the probing technique, we demonstrate that devices with large edge disorder exhibit a nearly homogeneous capacitance profile across the device channel, close to the case of an infinitely large graphene sheet. [...]
2019 - 10.1103/PhysRevB.99.195408
Physical review B, Vol. 99, issue 19 (May 2019) , art. 195408  

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