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Transport properties of CrP

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【Author】 Xuebo Zhou;Ping Zheng;Wei Wu;Yu Sui;Jianlin Luo;School of Physics, Harbin Institute of Technology;Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences;Laboratory for Space Environment and Physical Sciences, Harbin Institute of Technology;School of Physical Sciences, University of Chinese Academy of Sciences;Songshan Lake Materials Laboratory;

【通讯作者】吴伟;隋郁;雒建林;

【机构】 School of Physics, Harbin Institute of Technology； Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences； Laboratory for Space Environment and Physical Sciences, Harbin Institute of Technology； School of Physical Sciences, University of Chinese Academy of Sciences； Songshan Lake Materials Laboratory；

【摘要】 CrP has many exotic physical properties due to a four-fold degenerate band crossing at the Y point of the Brillouin zone, which is protected by the nonsymmorphic symmetry of the space group. We carried out the heat capacity, electrical and thermal transport measurements on CrP and extracted the electron thermal conductivity. Due to the difference in energy and momentum relaxation time during electron–phonon inelastic scattering, the normalized Lorentz number decreases below about 160 K. Below 25.6 K, the normalized Lorentz number begins to recover, which is due to the dominance of elastic scattering between electrons and defects at low temperatures.更多还原

【Abstract】 CrP has many exotic physical properties due to a four-fold degenerate band crossing at the Y point of the Brillouin zone, which is protected by the nonsymmorphic symmetry of the space group. We carried out the heat capacity, electrical and thermal transport measurements on CrP and extracted the electron thermal conductivity. Due to the difference in energy and momentum relaxation time during electron–phonon inelastic scattering, the normalized Lorentz number decreases below about 160 K. Below 25.6 K, the normalized Lorentz number begins to recover, which is due to the dominance of elastic scattering between electrons and defects at low temperatures.更多还原

【关键词】 CrP； thermal transport； Wiedemann–Franz law；
【Key words】 CrP； thermal transport； Wiedemann–Franz law；

【基金】 Project supported by the National Natural Science Foundation of China (Grant Nos. 12134018, 11921004, and 11634015);the National Key Research and Development Program of China (Grant Nos. 2022YFA1602800, 2021YFA1401800, 2017YFA0302901, 2017YFA0302903, and 2022YFA1402203);the Strategic Priority Research Program and Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (Grant No. XDB33010100);the Synergetic Extreme Condition User Facility (SECUF)

【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2023年07期

【分类号】O469
【下载频次】1

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