Ising superconductivity

S.G. Ovchinnikov^†
Kirensky Institute of Physics, Federal Research Center Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences, Academgorodok 50, str. 38, Krasnoyarsk, 660036, Russian Federation

We consider experimental and theoretical studies of Ising superconductivity. This new field in the physics of superconductivity was given impetus by the discovery of unusual properties in layered molybdenum disulfide (MoS₂) exhibiting an unprecedentedly high upper critical magnetic field B_c2, exceeding the paramagnetic Pauli limit six fold. It turns out that this is due to the properties of the crystal lattice of two-dimensional monolayers inducing Ising and Rashba spin—orbit coupling. Features of the crystal structure lead to a possible coexistence of singlet and triplet pairing and to the emergence of topological phases. Some options for searching for the Majorana fermion formations at the ends of long one-dimensional wires on the surface of an Ising superconductor are discussed.

Correspondence should be addressed to
Keywords: layered structures with triangular layers, Ising spin—orbit coupling, Rashba spin—orbit coupling, singlet and triplet Cooper pairs, topological states
PACS: 74.78.−w
DOI: 10.3367/UFNe.2024.06.039696
URL: https://ufn.ru/en/articles/2025/6/a/
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001570951300001
Scopus

2-s2.0-105011866839
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2025PhyU...68..537O
Citation: Ovchinnikov S G "Ising superconductivity" Phys. Usp. 68 537–550 (2025)

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Received: 15th, May 2024, revised: 20th, June 2024, accepted: 22nd, June 2024

Оригинал: Овчинников С Г «Изинговская сверхпроводимость» УФН 195 569–583 (2025); DOI: 10.3367/UFNr.2024.06.039696

References (96) Similar articles (20) ↓

V.V. Val’kov, M.S. Shustin et al “Topological superconductivity and Majorana states in low-dimensional systems” Phys. Usp. 65 2–39 (2022)
A.S. Mel’nikov, S.V. Mironov et al “Superconducting spintronics: state of the art and prospects” Phys. Usp. 65 1248–1289 (2022)
V.F. Gantmakher, V.T. Dolgopolov “Superconductor-insulator quantum phase transition” Phys. Usp. 53 1–49 (2010)
L.A. Chernozatonskii, A.A. Artyukh “Quasi-two-dimensional transition metal dichalcogenides: structure, synthesis, properties and applications” Phys. Usp. 61 2–28 (2018)
M.Yu. Kagan, A.V. Turlapov “BCS—BEC crossover, collective excitations, and hydrodynamics of superfluid quantum fluids and gases” Phys. Usp. 62 215–248 (2019)
M.V. Durnev, M.M. Glazov “Excitons and trions in two-dimensional semiconductors based on transition metal dichalcogenides” Phys. Usp. 61 825–845 (2018)
B.I. Belevtsev “Superconductivity and localization of electrons in disordered two-dimensional metal systems” Sov. Phys. Usp. 33 (1) 36–54 (1990)
M.Yu. Kagan, V.A. Mitskan, M.M. Korovushkin “Anomalous superconductivity and superfluidity in repulsive fermion systems” Phys. Usp. 58 733–761 (2015)
A.P. Protogenov “Anyon superconductivity in strongly-correlated spin systems” Sov. Phys. Usp. 35 (7) 535–571 (1992)
G.M. Gusev, Z.D. Kvon et al “Thermopower in HgTe-based topological insulators and two-dimensional semimetals” Phys. Usp. 69 2–24 (2026)
V.N. Ryzhov, E.E. Tareyeva et al “Berezinskii—Kosterlitz—Thouless transition and two-dimensional melting” Phys. Usp. 60 857–885 (2017)
P.V. Ratnikov, A.P. Silin “Two-dimensional graphene electronics: current status and prospects” Phys. Usp. 61 1139–1174 (2018)
N.B. Ivanova, S.G. Ovchinnikov et al “Specific features of spin, charge, and orbital ordering in cobaltites” Phys. Usp. 52 789–810 (2009)
S.N. Vergeles, N.N. Nikolaev et al “General relativity effects in precision spin experimental tests of fundamental symmetries” Phys. Usp. 66 109–147 (2023)
M.V. Sadovskii “High-temperature superconductivity in iron-based layered compounds” Phys. Usp. 51 1201–1227 (2008)
S.G. Ovchinnikov “Exotic superconductivity and magnetism in ruthenates” Phys. Usp. 46 21–44 (2003)
A.L. Ivanovskii “Magnetic effects induced by sp impurities and defects in nonmagnetic sp materials” Phys. Usp. 50 1031–1052 (2007)
V.Yu. Irkhin, M.I. Katsnel’son “Half-metallic ferromagnets” Phys. Usp. 37 659–676 (1994)
Yu.S. Orlov, S.V. Nikolaev et al “Features of spin crossovers in magnetic materials” Phys. Usp. 66 647–672 (2023)
Z.D. Kvon, D.A. Kozlov et al “Topological insulators based on HgTe” Phys. Usp. 63 629–647 (2020)

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