Orbital-dependent charge dynamics in MnP revealed by optical study.
Orbital-dependent charge dynamics in MnP revealed by optical study.
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光学研究揭示了 MnP 中轨道相关的电荷动力学
DOI:
10.1038/s41598-017-14648-7
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发表时间:
2017-10-27
影响因子:
4.6
通讯作者:
Luo JL
中科院分区:
文献类型:
--
作者:
Zheng P;Xu YJ;Wu W;Xu G;Lv JL;Lin FK;Wang P;Yang YF;Luo JL
Unconventional superconductivity often emerges at the border of long-range magnetic orders. Understanding the low-energy charge dynamics may provide crucial information on the formation of superconductivity. Here we report the unpolarized/polarized optical conductivity study of high quality MnP single crystals at ambient pressure. Our data reveal two types of charge carriers with very different lifetimes. In combination with the first-principles calculations, we show that the short-lifetime carriers have flat Fermi sheets which become gapped in the helimagnetic phase, causing a dramatic change in the low-frequency optical spectra, while the long-lifetime carriers are anisotropic three-dimensional like which are little affected by the magnetic transitions and provide major contributions to the transport properties. This orbital-dependent charge dynamics originates from the special crystal structure of MnP and may have an influence on the unconventional superconductivity and its interplay with helimagnetism at high pressures.
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影响因子:
3.7
作者:
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通讯作者:
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KASUYA, T
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