%0 Journal Article
%T Large resistivity change and phase transition in LiMnAs
%A A. Beleanu
%A J. Kiss
%A G. Kreiner
%A C. K£¿hler
%A L. M¨¹chler
%A W. Schnelle
%A U. Burkhardt
%A S. Chadov
%A S. Medvediev
%A D. Ebke
%A G. Cordier
%A B. Albert
%A A. Hoser
%A F. Bernardi
%A T. I. Larkin
%A D. Pr£¿pper
%A A. V. Boris
%A B. Keimer
%A C. Felser
%J Physics
%D 2013
%I arXiv
%X 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. From neutron and X-ray diffraction measurements on LiMnAs we have observed 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 (DFT) calculations.
%U http://arxiv.org/abs/1307.6404v4