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25 papers · 2 filters
Magnetic Response of Majorana Kramers Pairs Protected by Z2 Invariants
Yuki Yamazaki, Shingo Kobayashi, Ai Yamakage
On the surface of time-reversal-invariant topological superconductors, Kramers pairs of Majorana fermions with chiral and crystalline symmetries exhibit completely uniaxial or octu…
Materials design of dynamically stable layered nickelates
Motoaki Hirayama, Terumasa Tadano, Yusuke Nomura +1
Motivated by the recent discovery of superconductivity in the Sr-doped layered nickelate NdNiO, we perform a systematic computational materials design of layered nickelates tha…
Formation of 2D single-component correlated electron system and band engineering in the nickelate superconductor NdNiO2
Yusuke Nomura, Motoaki Hirayama, Terumasa Tadano +3
Motivated by the recent experimental discovery of superconductivity in the infinite-layer nickelate Nd0.8Sr0.2NiO2 [Li et al., Nature 572, 624 (2019)], we study how the correlated…
Quantum Crystal Structure in the 250 K Superconducting Lanthanum Hydride
Ion Errea, Francesco Belli, Lorenzo Monacelli +8
The discovery of superconductivity at 200 K in the hydrogen sulfide system at large pressures [1] was a clear demonstration that hydrogen-rich materials can be high-temperature sup…
Higgs Mode in Superconductors
Ryo Shimano, Naoto Tsuji
When a continuous symmetry of a physical system is spontaneously broken, two types of collective modes typically emerge: the amplitude and phase modes of the order-parameter fluctu…
Clean 2D superconductivity in a bulk van der Waals superlattice
Aravind Devarakonda, Hisashi Inoue, Shiang Fang +7
Advances in low-dimensional superconductivity are often realized through improvements in material quality. Apart from a small group of organic materials, there is a near absence of…