Results 51 to 60 of about 95,883 (258)

Superconductivity and hybrid soft modes in TiSe$_2$ [PDF]

, 2016
The competition between superconductivity and other ground states of solids is one of the challenging topics in condensed matter physics. Apart from high-temperature superconductors [1,2] this interplay also plays a central role in the layered transition-
Alatas, A., Heid, R., Hott, R., Karapetrov, G., Maschek, M., Merz, M., Rosenkranz, S., Said, A.H., van Wezel, J., Weber, F., Zhu, S., Zocco, D.A.   +11 more
core   +3 more sources

Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN

Advanced Functional Materials, EarlyView.
Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk, Danis I. Badrtdinov, Kenji Watanabe, Takashi Taniguchi, Cyrus E. Dreyer, Malte Rösner, Maciej Koperski   +6 more
wiley   +1 more source

Flat bands as a route to high-temperature superconductivity in graphite

, 2015
Superconductivity is traditionally viewed as a low-temperature phenomenon. Within the BCS theory this is understood to result from the fact that the pairing of electrons takes place only close to the usually two-dimensional Fermi surface residing at a ...
AA Shashkin, AM Essin, AP Schnyder, D Pierucci, D Yudin, F Guinea, GE Volovik, GE Volovik, GE Volovik, GE Volovik, GM Graf, GP Mikitik, GP Mikitik, I Brihuega, JW McClure, L Landau, MA Silaev, MI Katsnelson, N Ya Fogel, NB Kopnin, NB Kopnin, NB Kopnin, NB Kopnin, P Delplace, P Nozieres, Q Lin, RSK Mong, S Hattendorf, S Ryu, TE Weller, TT Heikkilä, TT Heikkilä, VA Khodel, Y Kopaev, Y Kopaev   +34 more
core   +1 more source

Local antiferromagnetic exchange and collaborative Fermi surface as key ingredients of high temperature superconductors [PDF]

, 2011
Cuprates, ferropnictides and ferrochalcogenides are three classes of unconventional high-temperature superconductors, who share similar phase diagrams in which superconductivity develops after a magnetic order is suppressed, suggesting a strong interplay
AL Wysocki, AV Balatsky, C de la Cruz, C Fang, C Fang, C Fang, CK Xu, D Mou, DC Johnston, DJ Scalapino, DN Argyriou, F Ma, F Wang, H Ding, H Ding, II Mazin, J Bardeen, J Zhao, JK Dong, K Hashimoto, K Kuroki, K Nakayama, K Seo, L Zhao, M Le Tacon, M Wang, M Wang, MD Lumsden, MR Norman, OJ Lipscombe, P Richard, PA Lee, PW Anderson, PW Anderson, Q Si, S Li, S Maiti, S-H Lee, T Qian, T Yildirim, W Bao, W Bao, X-P Wang, Y Zhang   +43 more
core   +3 more sources

Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses

Advanced Materials, EarlyView.
Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami, Yangming Wang, Seigo Souma, Hiroto Nakamura, Akito Sakai, Takumi Osumi, Hang Su, Hikaru Watanabe, Shun'ichiro Kurosawa, Rikuto Oiwa, Daisuke Nishio‐Hamane, Kosuke Nakayama, Takuya Nomoto, Ryotaro Arita, Takafumi Sato, Satoru Nakatsuji   +15 more
wiley   +1 more source

Multiband Superconductivity, Polarons, Jahn-Teller Polarons, Heterogeneity, and High-Temperature Superconductivity

Condensed Matter
Early on, oxides were ruled out from superconductivity, since they are typically large-band-gap insulators. Nevertheless, a rather small number of them were found to be superconducting, with transition temperatures up to 14 K and a remarkably low carrier
Annette Bussmann-Holder, Hugo Keller
doaj   +1 more source

Recent Advances in High-Temperature Superconductivity [PDF]

, 2002
Recent experimental and theoretical developments in high-temperature superconductivity are reviewed, and the empirically asymmetric behavior between hole-doped and electron-doped cuprates is contrasted.
Yeh, N. -C.
core   +1 more source

Vitaly Ginzburg and High Temperature Superconductivity: Personal Reminiscences

, 2007
I offer some personal reminiscences from the period of 1976-1983, when I was a M. Sc. and then a Ph.D. student in Vitaly L. Ginzburg's High Temperature Superconductivity group at the P.N. Lebedev Institute in MoscowComment: To be published in proceedings
Anderson, Bogoliubov, Brandt, Chu, Chu, Cohen, Frohlich, Geilikman, Geilikman, Igor I. Mazin, Kirzhnits, Pashitski, Uspenskii, Zhitomirsky   +13 more
core   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

Impact of Cation Stoichiometry on the Crystalline Structure and Superconductivity in Nickelates

Frontiers in Physics, 2021
The recent discovery of superconductivity in infinite-layer nickelate films has aroused great interest since it provides a new platform to explore the mechanism of high-temperature superconductivity.
Yueying Li, Yueying Li, Wenjie Sun, Wenjie Sun, Jiangfeng Yang, Jiangfeng Yang, Xiangbin Cai, Wei Guo, Wei Guo, Zhengbin Gu, Zhengbin Gu, Ye Zhu, Yuefeng Nie, Yuefeng Nie   +13 more
doaj   +1 more source