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



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ID: 671315.0, MPI für Chemische Physik fester Stoffe / publications 2013
Large resistivity change and phase transition in the antiferromagnetic semiconductors LiMnAs and LaOMnAs
Authors:Beleanu, A.; Kiss, J.; Kreiner, G.; Köhler, C.; Müchler, L.; Schnelle, W.; Burkhardt, U.; Chadov, S.; Medvediev, S.; Ebke, D.; Felser, C.; Cordier, G.; Albert, B.; Hoser, A.; Bernardi, F.; Larkin, T. I.; Propper, D.; Boris, A. V.; Keimer, B.
Language:English
Date of Publication (YYYY-MM-DD):2013-11-27
Title of Journal:Physical Review B
Volume:88
Issue / Number:18
Start Page:184429-1
End Page:184429-3
Sequence Number of Article:184429
Review Status:not specified
Audience:Not Specified
Abstract / Description:Antiferromagnetic semiconductors are new alternative materials for spintronic applications and spin valves. In this work, we report a detailed investigation of two antiferromagnetic semiconductors AMnAs (A = Li, LaO), which are isostructural to the well-known LiFeAs and LaOFeAs superconductors. Here we present a comparison between the structural, magnetic, and electronic properties of LiMnAs, LaOMnAs, and related materials. Interestingly, both LiMnAs and LaOMnAs show a variation in resistivity with more than five orders of magnitude, making them particularly suitable for use in future electronic devices. Neutron and x-ray diffraction measurements on LiMnAs show a magnetic phase transition corresponding to the Neel temperature of 373.8 K, and a structural transition from the tetragonal to the cubic phase at 768 K. These experimental results are supported by density functional theory calculations.
External Publication Status:published
Document Type:Article
Communicated by:Ina Werner
Affiliations:MPI für chemische Physik fester Stoffe
Identifiers:ISI:000327933600004 [ID No:1]
ISSN:1098-0121 [ID No:2]
DOI:10.1103/PhysRevB.88.184429
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