Synchrotron diffraction as a function of temperature and pressure, specific heat, magnetic susceptibility and small-angle neutron scattering experiments have revealed an anomalous response of MnGe. Similar but less pronounced behavior has also been observed in Mn1−xCoxGe and Mn1−xFexGe solid solutions. Spin density fluctuations and Mn spin state instability are discussed as possible candidates for the observed effects.
@article{arxiv.1508.04701,
title = {Thermal expansion and compressibility of monogermanides of 3d-metals},
author = {G. A. Valkovskiy and E. V. Altynbaev and M. D. Kuchugura and E. G. Yashina and V. A. Dyadkin and A. V. Tsvyashchenko and V. A. Sidorov and L. N. Fomicheva and M. Bykov and E. Bykova and L. Dubrovinsky and D. Yu. Chernyshov and S. V. Grigoriev},
journal= {arXiv preprint arXiv:1508.04701},
year = {2016}
}
Comments
7 pages, 9 figures, to be published in Physical Review B: Condensed Matter