@article{3a8744d7d13e40b98adf8d1379555d97,
title = "Spin quenching assisted by a strongly anisotropic compression behavior in MnP",
abstract = "We studied the crystal structure and spin state of MnP under high pressure with synchrotron x-ray diffraction and x-ray emission spectroscopy (XES). MnP has an exceedingly strong anisotropy in compressibility, with the primary compressible direction along the b axis of the Pnma structure. XES reveals a pressure-driven quenching of the spin state in MnP. First-principles calculations suggest that the strongly anisotropic compression behavior significantly enhances the dispersion of the Mn d-orbitals and the splitting of the d-orbital levels compared to the hypothetical isotropic compression behavior. Thus, we propose spin quenching results mainly from the significant enhancement of the itinerancy of d electrons and partly from spin rearrangement occurring in the split d-orbital levels near the Fermi level. This explains the fast suppression of magnetic ordering in MnP under high pressure. The spin quenching lags behind the occurrence of superconductivity at ∼8 GPa implying that spin fluctuations govern the electron pairing for superconductivity.",
keywords = "high pressure, spin state, structural distortion, superconductivity",
author = "Fei Han and Di Wang and Yonggang Wang and Nana Li and Bao, {Jin Ke} and Bing Li and Botana, {Antia S.} and Yuming Xiao and Paul Chow and Chung, {Duck Young} and Jiuhua Chen and Xiangang Wan and Kanatzidis, {Mercouri G.} and Wenge Yang and Mao, {Ho Kwang}",
note = "Funding Information: This work was financially supported by the National Nature Science Foundation of China under Contract Nos. U1530402, 11374137, and 11525417. WY and MHK also acknowledge financial support from the US Department of Energy, Office of Basic Energy Sciences, x-ray Scattering Core Program under Contract No. DE-FG02-99ER45775. HPCAT operations are supported by the US Department of Energy, National Nuclear Security Administration under Contract No. DE-NA0001974 and the US Department of Energy, Office of Basic Energy Science under Contract No. DE-FG02-99ER45775, with partial instrumentation funding from National Science Foundation. The Advanced Photon Source is supported by the US Department of Energy, Office of Basic Energy Sciences under Contract No. DE-AC02-06CH11357. The sample preparation conducted at the Materials Science Division, Argonne National Laboratory is supported by the US Department of Energy, Office of Science, Materials Sciences and Engineering. Funding Information: This work was financially supported by the National Nature Science Foundation of China under Contract Nos. U1530402, 11374137, and 11525417.WYandMHKalso acknowledge financial support from the US Department of Energy, Office of Basic Energy Sciences, x-ray Scattering Core Program under Contract No. DEFG02-99ER45775. HPCAT operations are supported by the US Department of Energy, National Nuclear Security Administration under Contract No. DE-NA0001974 and the US Department of Energy, Office of Basic Energy Science under Contract No. DE-FG02-99ER45775, with partial instrumentation funding from National Science Foundation. The Advanced Photon Source is supported by the US Department of Energy, Office of Basic Energy Sciences under Contract No. DE-AC02-06CH11357. The sample preparation conducted at the Materials Science Division, Argonne National Laboratory is supported by the US Department of Energy, Office of Science, Materials Sciences and Engineering. Publisher Copyright: {\textcopyright} 2018 The Author(s). Published by IOP Publishing Ltd on behalf of Deutsche Physikalische Gesellschaft. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",
year = "2018",
month = feb,
doi = "10.1088/1367-2630/aaa3c3",
language = "English (US)",
volume = "20",
journal = "New Journal of Physics",
issn = "1367-2630",
publisher = "IOP Publishing Ltd.",
number = "2",
}