TY - JOUR
T1 - Large resistivity change and phase transition in the antiferromagnetic semiconductors LiMnAs and LaOMnAs
AU - Beleanu, A.
AU - Kiss, J.
AU - Kreiner, G.
AU - Köhler, C.
AU - Müchler, L.
AU - Schnelle, W.
AU - Burkhardt, U.
AU - Chadov, S.
AU - Medvediev, S.
AU - Ebke, D.
AU - Felser, C.
AU - Cordier, G.
AU - Albert, B.
AU - Hoser, A.
AU - Bernardi, F.
AU - Larkin, T. I.
AU - Pröpper, D.
AU - Boris, A. V.
AU - Keimer, B.
PY - 2013/11/27
Y1 - 2013/11/27
N2 - 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 Néel 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.
AB - 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 Néel 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.
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U2 - 10.1103/PhysRevB.88.184429
DO - 10.1103/PhysRevB.88.184429
M3 - Article
AN - SCOPUS:84890370001
SN - 1098-0121
VL - 88
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 18
M1 - 184429
ER -