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



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ID: 670788.0, MPI für Chemische Physik fester Stoffe / publications 2013
Lattice Instability and Competing Spin Structures in the Double Perovskite Insulator Sr2FeOsO6
Authors:Paul, A. K.; Adler, P.; Jansen, M; Yan, B.; Ksenofontov, V.; Reehuis, M.; Hoser, A.; Többens, D. M.; Abdala, P. M.; Felser, C.
Language:English
Date of Publication (YYYY-MM-DD):2013-10-18
Title of Journal:Physical Review Letters
Volume:111
Start Page:167205-1
End Page:167205-5
Sequence Number of Article:167205
Review Status:not specified
Abstract / Description:The semiconductor Sr2FeOsO6, depending on temperature, adopts two types of spin structures that
differ in the spin sequence of ferrimagnetic iron-osmium layers along the tetragonal c axis. Neutron
powder diffraction experiments, 57Fe Mo¨ssbauer spectra, and density functional theory calculations
suggest that this behavior arises because a lattice instability resulting in alternating iron-osmium distances
fine-tunes the balance of competing exchange interactions. Thus, Sr2FeOsO6 is an example of a double
perovskite, in which the electronic phases are controlled by the interplay of spin, orbital, and lattice
degrees of freedom.
External Publication Status:published
Document Type:Article
Communicated by:Ina Werner
Affiliations:MPI für chemische Physik fester Stoffe
Identifiers:DOI:10.1103/PhysRevLett.111.167205
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