Pressure-Induced Insulator-Metal Transition in Two-Dimensional Mott Insulator NiPS3

被引:9
作者
Matsuoka, Takahiro [1 ]
Haglund, Amanda [1 ]
Xue, Rui [2 ]
Smith, Jesse S. [3 ]
Lang, Maik [4 ]
dos Santos, Antonio M. [5 ]
Mandrus, David [1 ,2 ]
机构
[1] Univ Tennessee, Mat Sci & Engn, Knoxville, TN 37996 USA
[2] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
[3] Argonne Natl Lab, Xray Sci Div, HPCAT, Argonne, IL 60439 USA
[4] Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA
[5] Oak Ridge Natl Lab, Neutron Scattering Div, Oak Ridge, TN 37831 USA
关键词
DIFFRACTION; MN; FE;
D O I
10.7566/JPSJ.90.124706
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The pressure-induced insulator to metal transition (IMT) of layered magnetic nickel phosphorous tri-sulfide NiPS3 was studied in-situ under quasi-uniaxial conditions by means of electrical resistance (R) and X-ray diffraction (XRD) measurements. This sluggish transition is shown to occur at 35 GPa. Transport measurements show no evidence of superconductivity to the lowest measured temperature (similar to 2 K). The structure results presented here differ from earlier insitu work that subjected the sample to a different pressure state, suggesting that in NiPS3 the phase stability fields are highly dependent on strain. It is suggested that careful control of the strain is essential when studying the electronic and magnetic properties of layered van der Waals solids.
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页数:6
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