Results 51 to 60 of about 92,670 (212)

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

Advanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno, Mercè Roig, Víctor Barrena, Edwin Herrera, Alberto M. Ruiz, Samuel Mañas‐Valero, Antón Fente, Anita Smeets, Jazmín Aragón, Yanina Fasano, Beilun Wu, Maria N. Gastiasoro, Eugenio Coronado, José J. Baldoví, Brian M. Andersen, Isabel Guillamón, Hermann Suderow   +16 more
wiley   +1 more source

Superconducting phase diagram of H3S under high magnetic fields

Nature Communications, 2019
The discovery of over 200 K superconductivity excites the community to search for room temperature superconductivity. Here, Mozaffari et al. report the temperature dependence of the upper critical fields of superconducting H3S under a record-high ...
Shirin Mozaffari, Dan Sun, Vasily S. Minkov, Alexander P. Drozdov, Dmitry Knyazev, Jonathan B. Betts, Mari Einaga, Katsuya Shimizu, Mikhail I. Eremets, Luis Balicas, Fedor F. Balakirev   +10 more
doaj   +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

Direct Connection between Mott Insulator and d-Wave High-Temperature Superconductor Revealed by Continuous Evolution of Self-Energy Poles

, 2018
The high-temperature superconductivity in copper oxides emerges when carriers are doped into the parent Mott insulator. This well-established fact has, however, eluded a microscopic explanation.
Civelli, Marcello, Imada, Masatoshi, Sakai, Shiro   +2 more
core   +3 more sources

Signatures of Edge States in Antiferromagnetic Van der Waals Josephson Junctions

Advanced Materials, EarlyView.
ABSTRACT The combination of superconductivity and magnetic textures leads to unconventional superconducting phenomena, including new correlated and topological phases. Van der Waals (vdW) materials emerge as a versatile platform for exploring the interplay between these two competing orders.
Celia González‐Sánchez, Ignacio Sardinero, Jorge Cuadra, Alfredo Spuri, José A. Moreno, Hermann Suderow, Elke Scheer, Pablo Burset, Angelo Di Bernardo, Rubén Seoane Souto, Eduardo J. H. Lee   +10 more
wiley   +1 more source

Electronic Mechanism of Superconductivity in the Cuprates, C$_{60}$, and Polyacenes

, 2000
On the basis of an analysis of theoretical and numerical studies of model systems, and of experiments on superconductivity in doped C$_{60}$, polyacenes, and the cuprate high temperature superconductors, we propose that a purely electronic mechanism of ...
Chakravarty, Sudip, Kivelson, Steven A.
core   +1 more source

Anomalous Spin‐Optical Helical Effect in Ti‐Based Kagome Metal

Advanced Materials, EarlyView.
The kagome lattice hosts diverse correlated quantum states, including elusive loop currents. We report spin‐handedness selective signals in CsTi3Bi5, termed the anomalous spin‐optical helical effect, surpassing conventional spin responses. Arising from light helicity coupled to spin‐orbital correlations, this effect provides a sensitive, indirect probe
Federico Mazzola, Wojciech Brzezicki, Chiara Bigi, Armando Consiglio, Luciano Jacopo D'Onofrio, Maria Teresa Mercaldo, Adam Kłosiński, François Bertran, Patrick Le Fèvre, Oliver J. Clark, Mark T. Edmonds, Manuel Tuniz, Alessandro De Vita, Vincent Polewczyk, Jeppe B. Jacobsen, Henrik Jacobsen, Jill A. Miwa, Justin W. Wells, Anupam Jana, Ivana Vobornik, Jun Fujii, Niccolo Mignani, Narges Tarakameh Samani, Alberto Crepaldi, Giorgio Sangiovanni, Anshu Kataria, Tommaso Morresi, Samuele Sanna, Pietro Bonfá, Brenden R. Ortiz, Ganesh Pokharel, Stephen D. Wilson, Domenico Di Sante, Carmine Ortix, Mario Cuoco   +34 more
wiley   +1 more source

Room-Temperature Superconductivity in Yb/Lu Substituted Clathrate Hexahydrides under Moderate Pressure

Research, 2022
Room temperature superconductivity is a dream that mankind has been chasing for a century. In recent years, the synthesis of H3S, LaH10, and C-S-H compounds under high pressures has gradually made that dream become a reality.
Mingyang Du, Hao Song, Zihan Zhang, Defang Duan, Tian Cui   +4 more
doaj   +1 more source

Superconductivity in Ru substituted BaFe2-xRuxAs2 [PDF]

, 2010
The occurrence of bulk superconductivity at ~22 K is reported in polycrystalline samples of BaFe2-xRuxAs2 for nominal Ru content in the range of x=0.75 to 1.125. A systematic suppression of the spin density wave transition temperature (TSDW) precedes the
A. Bharathi, A. T. Satya, Ajay Gupta, C. S. Sundar, P. Blaha, S. Paulraj, Sharat Chandra, Shilpam Sharma, V. Raghavendra Reddy, V. S. Sastry   +9 more
core   +2 more sources

Phonon Engineering in Ultrathin Sn Films

Advanced Materials Interfaces, EarlyView.
When embedded in multilayer structures, ultrathin Sn layers demonstrate strongly modified vibrational density of states (VDOS). This allows engineering a drastic increase of the Lamb‐Mössbauer factor fLM$f_{\text{LM}}$ and thereby of the cross‐section for coherent excitation of the ultrasharp nuclear resonance of 119Sn$^{119}{\rm Sn}$. This enables the
Sven Velten, Kai Schlage, Ilya Sergeev, Olaf Leupold, René Steinbrügge, Varimalla Raghavendra Reddy, Michael Yu Hu, Esen Ercan Alp, Lars Bocklage, Ralf Röhlsberger   +9 more
wiley   +1 more source