Electrical resistance of dysprosium under pressure

18th APS-SCCM; 24th AIRAPT

Sundqvist, B.^1 ; Tolpygo, V.K.^1,2

Department of Physics, Umeå University, Umeå

S-90187, Sweden^1

Honeywell Aerospace, Phoenix

AZ

85034, United States^2

关键词: Electrical resistances;    Free electron;    Increasing temperatures;    Literature data;    Total pressure coefficients;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/500/18/182040/pdf
DOI  :  10.1088/1742-6596/500/18/182040

来源: IOP

【 摘 要 】

The electrical resistance of dysprosium metal has been measured as a function of hydrostatic pressure up to 1.2 GPa at temperatures from 300 K to 700 K, and at atmospheric pressure from 80 to 700 K. Our data at atmospheric pressure and at room temperature agree well with literature data. The total pressure coefficient of resistance at 300 K is found to be dlnR/dp = -2.98·10-2GPa-1and to decrease slightly with increasing temperature. The results are discussed in terms of simple free-electron type models.