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          Institute: MPI für Chemische Physik fester Stoffe     Collection: publications 2013     Display Documents



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ID: 670768.0, MPI für Chemische Physik fester Stoffe / publications 2013
Low-temperature phase diagram of Fe1+yTe studied using x-ray diffraction
Authors:Koz, C.; Rößler, S.; Tsirlin, A. A.; Wirth, S.; Schwarz, U.
Language:English
Date of Publication (YYYY-MM-DD):2013-09-18
Title of Journal:Physical Review B
Volume:88
Issue / Number:9
Start Page:094509-1
End Page:094509-10
Sequence Number of Article:094509
Review Status:not specified
Audience:Not Specified
Abstract / Description:We used low-temperature synchrotron x-ray diffraction to investigate the structural phase transitions of Fe1+y Te in the vicinity of a tricitical point in the phase diagram. A detailed analysis of the powder diffraction patterns and temperature dependence of the peak widths in Fe1+y Te showed that two-step structural and magnetic phase transitions occur within the compositional range 0.11 <= y <= 0.13. The phase transitions are sluggish, indicating a strong competition between the orthorhombic and the monoclinic phases. We combine high-resolution diffraction experiments with specific heat, resistivity, and magnetization measurements and present a revised temperature-composition phase diagram for Fe1+y Te.
External Publication Status:published
Document Type:Article
Communicated by:Ina Werner
Affiliations:MPI für chemische Physik fester Stoffe
Identifiers:ISI:000324539100001 [ID No:1]
ISSN:1098-0121 [ID No:2]
DOI:10.1103/PhysRevB.88.094509
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