Article
Physics, Applied
R. Arouca, E. C. Marino
Summary: The resistivity in different phases of high-Tc cuprates shows different behaviors, including T-linear behavior, pure T(2) Fermi liquid behavior, and T1+delta behavior.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2021)
Article
Physics, Multidisciplinary
Yue Chen, Zhengtao Liu, Ziyue Lin, Qiwen Jiang, Mingyang Du, Zihan Zhang, Hao Song, Hui Xie, Tian Cui, Defang Duan
Summary: Theoretical predictions and experimental synthesis have shown that H3S and LaH10 superconductors have record high superconducting transition temperatures, making hydrogen-based superconductors a hot topic in the field of solid-state physics. In this study, a new layered structure called CaH15 with high Tc of 189 K at 200 GPa is predicted using ab initio calculations. Similar layered structures were also found in SrH15, YH15, and LaH15 at high pressures, with each material exhibiting high Tc values.
FRONTIERS OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
E. C. Marino
Summary: In this study, we investigate three fundamental issues in the physics of high-Tc cuprates from the perspective of a recently proposed comprehensive theory. These issues include the microscopic mechanism of the attractive interaction between holes, the relationship between the dispersion relation and the pseudogap order parameter, and the debate regarding the location of the quantum critical point. We obtained clearcut solutions for these three issues.
NEW JOURNAL OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
Robert S. Markiewicz, Bahadur Singh, Christopher Lane, Arun Bansil
Summary: This study reveals the presence of high-order Van Hove singularities (hoVHSs) in cuprate high-Tc superconductors and establishes a correlation between hoVHSs and higher superconducting transition temperatures. It highlights the significance of hoVHSs as a new marker for identifying correlated phases in materials.
COMMUNICATIONS PHYSICS
(2023)
Article
Chemistry, Physical
Shubo Wei, Hanyu Liu
Summary: The study explored the crystal structures of barium iodide at a wide pressure range and found that it exhibits metallic properties under moderate pressure. Additionally, comparisons of superconductivity between barium iodide and cesium iodide at different pressures were conducted.
Article
Multidisciplinary Sciences
Ta Tang, Brian Moritz, Cheng Peng, Zhi-Xun Shen, Thomas P. Devereaux
Summary: This study demonstrates that extended electron-phonon coupling is a significant factor in generating the attractive coupling observed in one-dimensional cuprate materials, and can reproduce the spectral features and doping dependence seen in experiments.
NATURE COMMUNICATIONS
(2023)
Article
Physics, Multidisciplinary
F. Barantani, M. K. Tran, I. Madan, I. Kapon, N. Bachar, T. C. Asmara, E. Paris, Y. Tseng, W. Zhang, Y. Hu, E. Giannini, G. Gu, T. P. Devereaux, C. Berthod, F. Carbone, T. Schmitt, D. van der Marel
Summary: This study investigates the temperature dependence of the dd exciton spectrum in Bi2Sr2CaCu2O8-x crystals using resonant inelastic X-ray scattering. The study shows that there is a significant change in the dd exciton spectra when the material transitions from the normal state to the superconductor state.
Article
Chemistry, Multidisciplinary
Lichen Wu, Mingyuan Gu, Yanhong Feng, Suhua Chen, Ling Fan, Xinzhi Yu, Kunkun Guo, Jiang Zhou, Bingan Lu
Summary: By controlled intercalation of TiSe2 with Cu, a layered superconductor Cu0.11TiSe2 is obtained, showing improved electron and ion transfer rates and crystal structure stability, greatly enhancing the performance of potassium-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Edoardo Martino, Carsten Putzke, Markus Konig, Philip J. W. Moll, Helmuth Berger, David LeBoeuf, Maxime Leroux, Cyril Proust, Ana Akrap, Holm Kirmse, Christoph Koch, ShengNan Zhang, QuanSheng Wu, Oleg V. Yazyev, Laszlo Forro, Konstantin Semeniuk
Summary: Crystalline defects can alter quantum interactions in solids, leading to unexpected phenomena such as unidirectional Kondo scattering in single crystals of 2H-NbS2. This scattering manifests as enhanced out-of-plane resistivity and thermopower at low temperatures, suppressed by a c-axis-oriented magnetic field. The magnetic moments originate from layers of 1T-NbS2, forming during growth and contributing to the unique and highly anisotropic response of the Kondo-lattice heterostructure in a layered conductor.
NPJ 2D MATERIALS AND APPLICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Jeremiah P. Tidey, Christopher Keegan, Nicholas C. Bristowe, Arash A. Mostofi, Zih-Mei Hong, Bo-Hao Chen, Yu-Chun Chuang, Wei-Tin Chen, Mark S. Senn
Summary: This research presents a detailed high-resolution diffraction study of a plain band insulator, La2MgO4, which is considered as a structural surrogate system for the undoped end-member of high-Tc superconductors. The study reveals the occurrence of a low-temperature phase transition and an octahedral tilt angle that is critical for superconductivity. The findings suggest the need for a careful reinvestigation of the origin of phase transitions in high-Tc superconductors.
Article
Multidisciplinary Sciences
D. Nicoletti, M. Buzzi, M. Fechner, P. E. Dolgirev, M. H. Michael, J. B. Curtis, E. Demler, G. D. Gu, A. Cavalleri
Summary: Research finds that coherent terahertz radiation can be emitted by surface Josephson plasmons when there are incommensurate or fluctuating charge stripes in cuprates.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Chemistry, Multidisciplinary
Meiling Jin, Peng Yu, Changzeng Fan, Qiang Li, Panlong Kong, Zhiwei Shen, Xiaomei Qin, Zhenhua Chi, Changqing Jin, Guangtong Liu, Guyue Zhong, Gang Xu, Zheng Liu, Jinlong Zhu
Summary: The study reported a pressure-induced phase transition and a dome-shaped superconducting phase in van der Waals layered NbIrTe4, with the highest critical temperature observed at approximately 5.8 K under a pressure of about 16 GPa. Anisotropic transport near the superconducting state was also observed, possibly due to the spatial modulation of interlayer Josephson coupling.
Article
Multidisciplinary Sciences
You-Sheng Li, Naoki Kikugawa, Dmitry A. Sokolov, Fabian Jerzembeck, Alexandra S. Gibbs, Yoshiteru Maeno, Clifford W. Hicks, Joerg Schmalian, Michael Nicklas, Andrew P. Mackenzie
Summary: This study reports the measurement of heat capacity in samples subject to large and highly homogeneous uniaxial pressure to investigate the superconductivity of Sr2RuO4. The normalized jump in heat capacity, Delta C/C, grows smoothly as a function of uniaxial pressure, favoring order parameters that are allowed to maximize in the same part of the Brillouin zone. These findings provide stringent constraints on theories of the superconductivity of Sr2RuO4.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Physics, Multidisciplinary
Yao Wang, Zhuoyu Chen, Tao Shi, Brian Moritz, Zhi-Xu Shen, Thomas P. Devereaux
Summary: This study establishes a minimal model for cuprates and highlights the crucial contribution of long-range electron-phonon coupling beyond standard Hubbard models. The research findings suggest a strong attractive interaction between neighboring electrons, comparable to experimental observations, due to nonlocal couplings mediating neighboring interactions. The structural and chemical similarities between 1D and 2D cuprate materials provide important insights for understanding cuprate high-Tc superconductivity and related quantum phases.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Yoshiharu Krockenberger, Ai Ikeda, Hideki Yamamoto
Summary: Research suggests that tuning the copper-oxygen bond configuration to the state of minimal energy is crucial for the emergence of high-temperature superconductivity, with differences in atomic stripe formation on CuO2 planes in infinite-layer phases observed in different compounds.
