このエントリーをはてなブックマークに追加
ID 48985
FullText URL
Author
Pyon, Sunseng
Abstract
IrTe2, a layered compound with a triangular iridium lattice, exhibits a structural phase transition at approximately 250 K. This transition is characterized by the formation of Ir-Ir bonds along the b-axis. We found that the breaking of Ir-Ir bonds that occurs in Ir1-xPtxTe2 results in the appearance of a structural critical point in the T = 0 limit at x(c) similar or equal to 0.035. Although both IrTe2 and PtTe2 are paramagnetic metals, superconductivity at T-c = 3.1 K is induced by the bond breaking in a narrow range of x >= x(c) in Ir1-xPtxTe2. This result indicates that structural fluctuations can be involved in the emergence of superconductivity.
Keywords
superconductivity
IrTe2
Pt doping
triangular lattice
phase diagram
structural phase transition
Published Date
2012-04-06
Publication Title
Journal of the Physical Society of Japan
Volume
volume81
Issue
issue5
Publisher
The Physical Society of Japan
Start Page
053701-1
End Page
053701-4
ISSN
0031-9015
Content Type
Journal Article
Official Url
http://jpsj.ipap.jp/link?JPSJ/81/053701/
language
英語
Copyright Holders
©2012 The Physical Society of Japan
File Version
author
Refereed
True
DOI
Web of Sience KeyUT