Pressure-induced magnetic collapse and metallization of TlFe1.6Se2

被引：6

作者：

Naumov, P. G. ^{[1
,2
]}

Filsinger, K. ^{[1
]}

Shylin, S. I. ^{[3
,4
]}

Barkalov, O. I. ^{[1
,5
]}

Ksenofontov, V. ^{[3
]}

Qi, Y. ^{[1
]}

Palasyuk, T. ^{[6
]}

Schnelle, W. ^{[1
]}

Medvedev, S. A. ^{[1
]}

Greenblatt, M. ^{[7
]}

Felser, C. ^{[1
]}

机构：

[1] Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden, Germany

[2] Russian Acad Sci, Shubnikov Inst Crystallog, Fed Sci Res Ctr Crystallog & Photon, Leninskii Prospekt 59, Moscow 119333, Russia

[3] Johannes Gutenberg Univ Mainz, Inst Inorgan & Analyt Chem, D-55128 Mainz, Germany

[4] Taras Shevchenko Natl Univ Kyiv, Dept Chem, UA-01601 Kiev, Ukraine

[5] Russian Acad Sci, Inst Solid State Phys, Acad Ossipyan St 2, Chernogolovka 142432, Moscow District, Russia

[6] Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland

[7] Rutgers State Univ, Dept Chem & Chem Biol, Piscataway, NJ 08854 USA

来源：

PHYSICAL REVIEW B | 2017年 / 96卷 / 06期

基金：

美国国家科学基金会; 俄罗斯科学基金会;

关键词：

Compendex;

D O I：

10.1103/PhysRevB.96.064109

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The crystal structure, magnetic ordering, and electrical resistivity of TlFe1.6Se2 were studied at high pressures. Below similar to 7GPa, TlFe1.6Se2 is an antiferromagnetically ordered semiconductor with a ThCr2Si2-type structure. The insulator-to-metal transformation observed at a pressure of similar to 7GPa is accompanied by a loss of magnetic ordering and an isostructural phase transition. In the pressure range similar to 7.5-11 GPa a remarkable downturn in resistivity, which resembles a superconducting transition, is observed below 15 K. We discuss this feature as the possible onset of superconductivity originating from a phase separation in a small fraction of the sample in the vicinity of the magnetic transition.

引用

页数：7

共 27 条

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