Anisotropy of upper critical fields and interface superconductivity in FeSe/SrTiO3 grown by PLD

被引：2
作者：
Kobayashi, Tomoki [1 ]
Nakagawa, Hiroki [1 ]
Ogawa, Hiroki [1 ]
Nabeshima, Fuyuki [1 ]
Maeda, Atsutaka [1 ]
机构：
[1] Univ Tokyo, Dept Basic Sci, Meguro, Tokyo 1538902, Japan
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2023年 / 35卷 / 41期
关键词：
iron-based superconductor; PLD grown films; anisotropy of upper critical fields; interface superconductivity; HIGH-TEMPERATURE SUPERCONDUCTIVITY; FESE FILMS; ORIGIN;
D O I：
10.1088/1361-648X/ace410
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In this study, we grow FeSe/SrTiO3 with thicknesses of 4-19 nm using pulsed laser deposition and investigate their magneto-transport properties. The thinnest film (4 nm) exhibit negative Hall effect, indicating electron transfer into FeSe from the SrTiO3 substrate. This is in agreement with reports on ultrathin FeSe/SrTiO3 grown by molecular beam epitaxy. The upper critical field is found to exhibit large anisotropy ( ?> 3.
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页数：5
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