Superconductivity in silicon and germanium polyhedra

被引：0
作者：
Tang, Jun [1 ]
Sato, Kazumi [1 ]
Li, Zhaofei [1 ]
Tanigaki, Katsumi [1 ]
机构：
[1] Tohoku Univ, Sendai, Miyagi 980, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2010年 / 470卷
关键词：
Superconductivity; Light element system; Silicon; Photoelectron spectroscopy; Magnetism; BA6GE25;
D O I：
10.1016/j.physc.2009.11.128
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Superconductivity is observed both in silicon and germanium polyhedral materials in Ba24Si100 and Ba24Ge100. The former superconducts at T-c = 1.4 K and its T-c decreases upon pressure, while the latter is superconducting at 150 mK after the electronic phase transition at 200 K and its T-c rises to 3.8 K with pressure. These characteristics are comparably discussed from the viewpoint of the density of states at the Fermi level experimentally derived both in Ba24Si100 and Ba24Ge100 from soft X-ray photoelectron spectroscopy and magnetic susceptibility measurements. (C) 2009 Elsevier B.V. All rights reserved.
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收藏
页码：S622 / S624
页数：3
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