Two-dimensional superconducting state of monolayer Pb films grown on GaAs(110) in a strong parallel magnetic field

Autor: Sekihara, Takayuki, Masutomi, Ryuichi, Okamoto, Tohru
Rok vydání: 2013
Předmět:
Zdroj: Phys. Rev. Lett. 111, 057005 (2013)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevLett.111.057005
Popis: Two dimensional (2D) superconductivity was studied by magnetotransport measurements on single-atomic-layer Pb films on a cleaved GaAs(110) surface. The superconducting transition temperature shows only a weak dependence on the parallel magnetic field up to 14 T, which is higher than the Pauli paramagnetic limit. Furthermore, the perpendicular magnetic field dependence of the sheet resistance is almost independent of the presence of the parallel field component. These results are explained in terms of an inhomogeneous superconducting state predicted for 2D metals with a large Rashba spin splitting.
Comment: 5 pages, 4 figures
Databáze: arXiv