Article
Multidisciplinary Sciences
Haoxiang Li, Peipei Hao, Junjie Zhang, Kyle Gordon, A. Garrison Linn, Xinglong Chen, Hong Zheng, Xiaoqing Zhou, J. F. Mitchell, D. S. Dessau
Summary: This article introduces the discovery of superconductivity in planar nickelates and explores the differences in electronic structure and correlations between Ni1+ compounds and Cu2+ cuprate superconductors. An ARPES study of the trilayer nickelate Pr4Ni3O8 reveals a Fermi surface resembling that of the hole-doped cuprates but with critical differences. The electronic correlations in the nickelates are about twice as strong as in the cuprates and are almost k-independent, indicating a likely origin from a local effect, such as the Mott interaction, whereas cuprate interactions are somewhat less local. Nevertheless, the nickelates still demonstrate strange-metal behavior in electron scattering rates. Understanding the similarities and differences between these two families of strongly correlated superconductors is an important challenge.
Article
Materials Science, Multidisciplinary
S. Mishra, A. Demuer, D. Aoki, I Sheikin
Summary: CeRhIn5 is a prototypical antiferromagnetic heavy-fermion compound with unique behavior in a magnetic field. Applying a magnetic field in the basal plane induces two additional phase transitions, while a new phase with pronounced in-plane electronic anisotropy emerges when the field is applied along or close to the c axis. The origin of this new phase, initially suggested to be an electronic-nematic state, remains elusive.
Article
Materials Science, Multidisciplinary
S. Hamann, T. Forster, D. Gorbunov, M. Konig, M. Uhlarz, J. Wosnitza, T. Helm
Summary: The study reports the electronic and thermodynamic properties of the antiferromagnetic metal uranium mononitride, showing that in the high-field state, the temperature dependence of resistivity's magnetic contribution is completely suppressed, indicating metallic character. Detailed investigation of the Hall effect provides evidence for a significant Fermi-surface reconstruction as the system is pushed into the high-field state.
Article
Materials Science, Multidisciplinary
Seher Karakuzu, Steven Johnston, Thomas A. Maier
Summary: Research on the bilayer Hubbard model has shown that robust s +/- pairing correlations exist in the model, especially in the large t perpendicular limit, when one band becomes incipient. However, this behavior is counteracted by a suppression of the intrinsic pair-field susceptibility and does not result in an increased critical temperature.
Article
Multidisciplinary Sciences
Yu-Te Hsu, Maarten Berben, Matija Culo, Seiji Adachi, Takeshi Kondo, Tsuneshiro Takeuchi, Yue Wang, Steffen Wiedmann, Stephen M. Hayden, Nigel E. Hussey
Summary: The study reveals the presence of an anomalous vortex liquid in high-Tc cuprates, indicating a close relationship between charge order and superconductivity. This phenomenon is related to the existence of long-range charge order and occurs in the presence of excitation current.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Chemistry, Multidisciplinary
Ivan A. Troyan, Dmitrii V. Semenok, Anna G. Ivanova, Andrey V. Sadakov, Di Zhou, Alexander G. Kvashnin, Ivan A. Kruglov, Oleg A. Sobolevskiy, Marianna V. Lyubutina, Dmitry S. Perekalin, Toni Helm, Stanley W. Tozer, Maxim Bykov, Alexander F. Goncharov, Vladimir M. Pudalov, Igor S. Lyubutin
Summary: The chemical interaction of Sn with H-2 was studied using X-ray diffraction methods, revealing the superconducting properties and structure of SnH4 tetrahydride, as well as several lower hydrides. SnH4 showed unusual behavior in strong magnetic fields and its electrical resistance temperature dependence did not follow conventional theories. These findings suggest that superhydrides are more similar to cuprates than previously believed.
Article
Multidisciplinary Sciences
Matthieu C. Dartiailh, Joseph J. Cuozzo, Bassel H. Elfeky, William Mayer, Joseph Yuan, Kaushini S. Wickramasinghe, Enrico Rossi, Javad Shabani
Summary: Experimental observation of missing odd Shapiro steps in topologically trivial Josephson junctions due to high transparency, with caution needed in relationship to topological superconductivity.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Aifeng Wang, Lijun Wu, Qianheng Du, Muntaser Naamneh, Walber Hugo Brito, A. M. Milinda Abeykoon, Wojciech Radoslaw Pudelko, Jasmin Jandke, Yu Liu, Nicholas C. Plumb, Gabriel Kotliar, Vladimir Dobrosavljevic, Milan Radovic, Yimei Zhu, Cedomir Petrovic
Summary: The nanoscale inhomogeneity has a profound impact on the properties of two-dimensional van der Waals materials. This study reveals that the substitution of sulfur on the selenium atomic sites in Fe1-ySe1-xSx causes differences in bond length and strong disorder, suppressing the superconducting transition temperature and enhancing disorder-related scattering. Furthermore, the research finds that the high-temperature metallic resistivity in the presence of strong disorder exceeds the Mott limit, indicating a violation of Matthiessen's rule and the Mooij law.
Article
Materials Science, Multidisciplinary
Yueqi Li, Lingyu Tian, Tianxing Ma, Hai-Qing Lin
Summary: Using the determinant quantum Monte Carlo method, this study investigates the metal-insulator transition in the interacting disordered Hubbard model of a Lieb lattice. The study finds that disorder and on-site Coulomb repulsive interaction produce interesting effects and induce the metal-insulator transition. In the thermodynamic limit, the system is an Anderson insulator and exhibits paramagnetic behavior.
Article
Materials Science, Multidisciplinary
P. Rosenberg, D. Senechal, A-M S. Tremblay, M. Charlebois
Summary: This study presents an extension of the variational Monte Carlo method to investigate the behavior of Fermi arcs in systems with open boundary conditions. It is important for addressing the long-standing issue of pseudogaps in high-temperature superconductors.
Article
Materials Science, Multidisciplinary
A. Chronister, M. Zingl, A. Pustogow, Yongkang Luo, D. A. Sokolov, F. Jerzembeck, N. Kikugawa, C. W. Hicks, J. Mravlje, E. D. Bauer, J. D. Thompson, A. P. Mackenzie, A. Georges, S. E. Brown
Summary: In this study, we performed nuclear magnetic resonance measurements of the oxygen-17 Knight shifts for Sr2RuO4 under uniaxial stress along the [100] direction. The resulting strain led to significant changes in the temperature and magnetic field dependence of the magnetic response. A quasiparticle description based on density-functional theory calculations, incorporating many-body renormalizations, successfully reproduced the experimental results and emphasized the importance of a van-Hove singularity. The strain was found to tune the Fermi-liquid coherence scale, driving it to lower values as the associated Lifshitz transition was approached.
NPJ QUANTUM MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Rui-Ying Mao, Da Wang, Congjun Wu, Qiang-Hua Wang
Summary: This study investigates the magnetotransport phenomena in overdoped La2-xSrxCuO4 (LSCO) systems based on the Fermi liquid assumption. The results show that near the Van Hove singularity, the Hall coefficient RH and magnetoresistivity ρ(xx) exhibit distinct behaviors as the doping concentration changes, providing insights into the Fermi liquid picture in these systems.
Article
Materials Science, Multidisciplinary
Veronika C. Stangier, Erez Berg, Joerg Schmalian
Summary: By strain tuning Sr2RuO4, the temperature dependence of the electrical resistivity can be changed, consistent with experimental results. The thermal resistivity is governed by distinct processes involving compressive modes.
Article
Physics, Multidisciplinary
Jongjun M. Lee, Masaki Oshikawa, Gil Young Cho
Summary: The study reveals that novel fermion liquids emerging from conducting networks exhibit a wide variety of non-Fermi liquid phenomena, which can be classified based on the characteristics of junctions in the network. The electric conductivity of these non-Fermi liquids shows markedly different scaling behaviors with temperature compared to a regular 2D Fermi liquid.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Brendan D. Faeth, Saien Xie, Shuolong Yang, Jason K. Kawasaki, Jocienne N. Nelson, Shuyuan Zhang, Christopher Parzyck, Pramita Mishra, Chen Li, Christopher Jozwiak, Aaron Bostwick, Eli Rotenberg, Darrell G. Schlom, Kyle M. Shen
Summary: The observation of replica bands by angle-resolved photoemission spectroscopy in monolayer FeSe/SrTiO3 has sparked interest in studying electron-phonon coupling at low carrier densities. The study conclusively demonstrates that the replica bands are intrinsic signatures of electron-boson coupling, and not associated with final state effects. The analysis provides valuable insights into the enhancement of superconductivity in monolayer FeSe/SrTiO3 and offers a new approach for quantitative comparisons with theoretical calculations.
PHYSICAL REVIEW LETTERS
(2021)
Article
Materials Science, Multidisciplinary
T. Helm, M. V. Kartsovnik, C. Proust, B. Vignolle, C. Putzke, E. Kampert, I. Sheikin, E. -S. Choi, J. S. Brooks, N. Bittner, W. Biberacher, A. Erb, J. Wosnitza, R. Gross
Article
Multidisciplinary Sciences
S. Badoux, W. Tabis, F. Laliberte, G. Grissonnanche, B. Vignolle, D. Vignolles, J. Beard, D. A. Bonn, W. N. Hardy, R. Liang, N. Doiron-Leyraud, Louis Taillefer, Cyril Proust
Article
Physics, Multidisciplinary
M. Jeong, D. Schmidiger, H. Mayaffre, M. Klanjsek, C. Berthier, W. Knafo, G. Ballon, B. Vignolle, S. Kramer, A. Zheludev, M. Horvatic
PHYSICAL REVIEW LETTERS
(2016)
Article
Multidisciplinary Sciences
Carsten Putzke, Liam Malone, Sven Badoux, Baptiste Vignolle, David Vignolles, Wojciech Tabis, Philip Walmsley, Matthew Bird, Nigel E. Hussey, Cyril Proust, Antony Carrington
Article
Chemistry, Physical
Tadhg Mahon, Etienne Gaudin, Baptiste Vignolle, Geraldine Ballon, Bernard Chevalier, Sophie Tence
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Physics, Multidisciplinary
A. Legros, S. Benhabib, W. Tabis, F. Laliberte, M. Dion, M. Lizaire, B. Vignolle, D. Vignolles, H. Raffy, Z. Z. Li, P. Auban-Senzier, N. Doiron-Leyraud, P. Fournier, D. Colson, L. Taillefer, C. Proust
Article
Physics, Multidisciplinary
Zengwei Zhu, Pan Nie, Benoit Fauque, Baptiste Vignolle, Cyril Proust, Ross D. McDonald, Neil Harrison, Kamran Behnia
Article
Physics, Multidisciplinary
Brigitte Leridon, Sergio Caprara, J. Vanacken, V. V. Moshchalkov, Baptiste Vignolle, Rajni Porwal, R. C. Budhani, Alessandro Attanasi, Marco Grilli, Jose Lorenzana
NEW JOURNAL OF PHYSICS
(2020)
Article
Materials Science, Multidisciplinary
Clement Collignon, Yudai Awashima, Ravi, Xiao Lin, Carl Willem Rischau, Anissa Acheche, Baptiste Vignolle, Cyril Proust, Yuki Fuseya, Kamran Behnia, Benoit Fauque
Summary: The research reports the observation of large and nonsaturating magnetoresistance in lightly doped SrTiO3-x, independent of the relative orientation of current and magnetic field. This phenomenon can be explained by the carrier mobility smoothly decreasing with magnetic field in all orientations. It is restricted to low concentrations and may be a generic feature of lightly doped quantum paraelectric materials.
PHYSICAL REVIEW MATERIALS
(2021)
Article
Multidisciplinary Sciences
Jean-Baptiste Vaney, Baptiste Vignolle, Alain Demourgues, Etienne Gaudin, Etienne Durand, Christine Labrugere, Fabio Bernardini, Andres Cano, Sophie Tence
Summary: This article introduces a topochemical method for intercalating fluorine atoms into intermetallics and demonstrates its potential by synthesizing non-stoichiometric mixed anion LaFeSiFx single crystals, which exhibit FeSi-based superconductivity. The study shows that fluorine topochemistry on intermetallics is an effective route for providing functional materials.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
M. Frachet, S. Benhabib, I Vinograd, S-F Wu, B. Vignolle, H. Mayaffre, S. Kramer, T. Kurosawa, N. Momono, M. Oda, J. Chang, C. Proust, M-H Julien, D. LeBoeuf
Summary: The study reveals a coupling between the lattice and spin glass in lanthanum-based cuprates at specific doping levels, leading to anomalies in sound velocity and attenuation. This suggests a strong competition between superconductivity and spin freezing, which can be tuned by the magnetic field.
Article
Materials Science, Multidisciplinary
W. Tabis, B. Yu, I. Bialo, M. Bluschke, T. Kolodziej, A. Kozlowski, E. Blackburn, K. Sen, E. M. Forgan, M. V. Zimmermann, Y. Tang, E. Weschke, B. Vignolle, M. Hepting, H. Gretarsson, R. Sutarto, F. He, M. Le Tacon, N. Barisic, G. Yu, M. Greven
Article
Materials Science, Multidisciplinary
A. Surrente, A. A. Mitioglu, K. Galkowski, L. Klopotowski, W. Tabis, B. Vignolle, D. K. Maude, P. Plochocka
Article
Materials Science, Multidisciplinary
C. Carbillet, S. Caprara, M. Grilli, C. Brun, T. Cren, F. Debontridder, B. Vignolle, W. Tabis, D. Demaille, L. Largeau, K. Ilin, M. Siegel, D. Roditchev, B. Leridon