Pairing and Collective Excitations in Ising Superconductors

被引：0
|
作者：
Semenov, A. G. [1 ,2 ]
机构：
[1] Russian Acad Sci, Lebedev Phys Inst, Moscow 119991, Russia
[2] Skolkovo Inst Sci & Technol, Moscow 121205, Russia
来源：
JETP LETTERS | 2024年 / 119卷 / 01期
基金：
俄罗斯科学基金会;
关键词：
D O I：
10.1134/S0021364023603810
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Two-dimensional Ising superconductivity formed in NbSe2, MoS2, WS2, etc. transition-metal dichalcogenides is considered. For the superconducting state, the effective low-energy action for phases of the order parameters has been obtained and collective modes in the system have been studied. It has been shown that the system contains not only the Goldstone mode but also the Leggett mode with a mass related to the difference between the singlet and triplet pairing constants. The effect of a low magnetic field parallel to the plane of the system has also been discussed.
引用
收藏
页码：46 / 52
页数：7
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