Pressure-induced electron phase transitions of α-As2Te3

被引：11

作者：

Zhang, Yuhang ^{[1
]}

Ma, Yanmei ^{[1
]}

Geng, Aihui ^{[2
]}

Zhu, Chunye ^{[1
]}

Liu, Guangtao ^{[1
]}

Tao, Qiang ^{[1
]}

Li, Fangfei ^{[1
]}

Wang, Qinglin ^{[3
]}

Li, Yan ^{[1
]}

Wang, Xin ^{[1
]}

Zhu, Pinwen ^{[1
]}

机构：

[1] Jilin Univ, Coll Phys, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130022, Peoples R China

[3] Ctr High Pressure Sci & Technol Adv Res, Changchun 130012, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 685卷

基金：

中国国家自然科学基金;

关键词：

As2Te3; High-pressure; Phase transition; Electronic band structure; Thermoelectric property; Bulk modulus; TOPOLOGICAL INSULATORS; THERMOELECTRIC-POWER; SUPERCONDUCTIVITY; SB2TE3; BI2SE3; BI2TE3; POLYMORPHISM; AS2TE3;

D O I：

10.1016/j.jallcom.2016.05.309

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Using a diamond-anvil cell (DAC), we conducted in situ angle dispersive X-ray diffraction (ADXRD) up to 47.6 GPa at room temperature to evaluate the structural stability of alpha-As2Te3. A reversible structural transition was observed at between 17.4 and 36.3 GPa. The high-pressure structure is solved by a gamma-Bi2Te3-type monoclinic phase (C2/c, gamma-As2Te3). Reliable structural analyses, such as Rietveld refinement of the powder x-ray data, were provided, which show that the previously reported high-pressure beta-As2Te3 phase is not existed. It is worth mentioning that twice pressure-induced electron phase transitions were revealed in alpha-As2Te3 at about 3 and 6 GPa, which cause the striking fluctuation in thermoelectric property at that pressures. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：551 / 558

页数：8

共 53 条

[11] Habman T. C., 1957, J PHYS CHEM SOLIDS, V2, P181
[12] High pressure transport properties of the topological insulator Bi2Se3
Hamlin, J. J.
Jeffries, J. R.
Butch, N. P.
Syers, P.
Zocco, D. A.
Weir, S. T.
Vohra, Y. K.
Paglione, J.
Maple, M. B.
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2012, 24 (03)
[13] Two-dimensional detector software: From real detector to idealised image or two-theta scan
Hammersley, AP
Svensson, SO
Hanfland, M
Fitch, AN
Hausermann, D
[J]. HIGH PRESSURE RESEARCH, 1996, 14 (4-6) : 235 - 248
[14] Anomalies in the low-temperature thermoelectric power of p-Bi2Te3 and Te associated with topological electronic transitions under pressure
Itskevich, ES
Kashirskaya, LM
Kraidenov, VF
[J]. SEMICONDUCTORS, 1997, 31 (03) : 276 - 278
[15] High pressure transport characteristics of Bi2Te3, Sb2Te3, and BiSbTe3
Jacobsen, M. K.
Sinogeikin, S. V.
Kumar, R. S.
Cornelius, A. L.
[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2012, 73 (09) : 1154 - 1158
[16] Pressure-Induced Unconventional Superconducting Phase in the Topological Insulator Bi2Se3
Kirshenbaum, Kevin
Syers, P. S.
Hope, A. P.
Butch, N. P.
Jeffries, J. R.
Weir, S. T.
Hamlin, J. J.
Maple, M. B.
Vohra, Y. K.
Paglione, J.
[J]. PHYSICAL REVIEW LETTERS, 2013, 111 (08)
[17] Superconductivity of the topological insulator Bi2Se3 at high pressure
Kong, P. P.
Zhang, J. L.
Zhang, S. J.
Zhu, J.
Liu, Q. Q.
Yu, R. C.
Fang, Z.
Jin, C. Q.
Yang, W. G.
Yu, X. H.
Zhu, J. L.
Zhao, Y. S.
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2013, 25 (36)
[18] Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set
Kresse, G
Furthmuller, J
[J]. PHYSICAL REVIEW B, 1996, 54 (16): : 11169 - 11186
[19] From ultrasoft pseudopotentials to the projector augmented-wave method
Kresse, G
Joubert, D
[J]. PHYSICAL REVIEW B, 1999, 59 (03): : 1758 - 1775
[20] Larson AC, 1994, GEN STRUCTURE ANAL S

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