journal article·2011-12-01Open access

Experimental and theoretical investigations on effects of hydrostatic pressure on the electrical properties of rhombohedral Sb2Te3

R. Li, Y. H. Guo, B. Xu, Y. Su, J. Yin, C. H. Zhang, Y. D. Xia, Z. G. Liu, Z. Xu, L. C. Wu, Z. T. Song

AIP Advances· Volume 1· Issue 4

Abstract

We have investigated the effect of the hydrostatic pressure on the electrical properties of the rhombohedral phase change material Sb2Te3 both experimentally and theoretically. The resistance can be reduced by 24.9% when the applied hydrostatic pressure reaches 0.377 GPa in the experiment, which is consistent with the results of the calculations by using the first principles theoretical method. The increase of the conductivity of Sb2Te3 under the hydrostatic pressure can be ascribed to the reduction of the electronic band gap.
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Research context

OpenAlex topics: Phase-change materials and chalcogenides · Chalcogenide Semiconductor Thin Films · Transition Metal Oxide Nanomaterials

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Affiliations

Nanjing University 1 Department of Physics and National Laboratory of Solid State Microstructures, , Nanjing 210093, P. R. China

Nanjing University 2 Department of Materials Science and Engineering and National Laboratory of Solid State Microstructures, , Nanjing 210093, P. R. China

Xi'an Jiaotong University 3 Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, , Xi'an 710046, P. R. China

Chinese Academy of Sciences 4 State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information technology, , Shanghai 200050, P. R. China

Funding

National Natural Science Foundation of China

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