Superconducting high-pressure phase of cesium iodide

被引：28

作者：

Xu, Ying ^{[1
]}

Tse, John S. ^{[1
,2
]}

Oganov, Artem R. ^{[3
,4
]}

Cui, Tian ^{[1
]}

Wang, Hui ^{[1
]}

Ma, Yanming ^{[1
]}

Zou, Guangtian ^{[1
]}

机构：

[1] Jilin Univ, Natl Lab Superhard Mat, Changchun 130012, Peoples R China

[2] Univ Saskatchewan, Dept Phys & Engn Phys, Saskatoon, SK S7N 5E2, Canada

[3] ETH, Dept Mat, Crystallog Lab, CH-8093 Zurich, Switzerland

[4] Moscow MV Lomonosov State Univ, Dept Geol, Moscow 119992, Russia

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 14期

基金：

中国国家自然科学基金;

关键词：

caesium compounds; crystal structure; crystallography; energy gap; high-pressure effects; superconducting materials; EQUATION-OF-STATE; CRYSTAL-STRUCTURE PREDICTION; AUGMENTED-WAVE METHOD; X-RAY-DIFFRACTION; CSI; METALLIZATION; TRANSITION; GIGAPASCALS; GAP; GPA;

D O I：

10.1103/PhysRevB.79.144110

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The evolutionary methodology for crystal structure prediction is employed to resolve a long-held puzzle in the high-pressure crystallography of cesium iodide. Above 42 GPa, an orthorhombic Pnma structure with a hexagonal-closed-packed (hcp) stacking which resembles hcp Xe is uncovered to be stable and successfully explains the observed diffraction patterns. At strong compression (>100 GPa), this structure becomes metallic via band-gap closure, and superconducting originated from the peculiar reverse electron donation from I- to Cs+.

引用

页数：5

共 50 条

[1] HIGH-PRESSURE DECOMPOSITION OF CESIUM IODIDE INTO CESIUM AND IODINE
不详
[J]. CHEMIE IN UNSERER ZEIT, 1988, 22 (06) : 217 - 218
[2] High-pressure phase transition of cesium chloride and cesium bromide
Wei, Shubo
Zhu, Chunye
Li, Qian
Zhou, Yuanyuan
Li, Quan
Ma, Yanming
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2014, 16 (33) : 17924 - 17929
[3] The High-Pressure Superconducting Phase of Arsenic
Tsuppayakorn-aek, Prutthipong
Luo, Wei
Ahuja, Rajeev
Bovornratanaraks, Thiti
[J]. SCIENTIFIC REPORTS, 2018, 8
[4] The High-Pressure Superconducting Phase of Arsenic
Prutthipong Tsuppayakorn-aek
Wei Luo
Rajeev Ahuja
Thiti Bovornratanaraks
[J]. Scientific Reports, 8
[5] HIGH-PRESSURE PHASE OF COPPER(I) IODIDE
HOFMANN, M
HULL, S
KEEN, DA
[J]. PHYSICAL REVIEW B, 1995, 51 (17): : 12022 - 12025
[6] On the high-pressure superconducting phase in platinum hydride
Szczesniak, D.
Zemia, T. P.
[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2015, 28 (08):
[7] HIGH-PRESSURE POLYMORPHS IN SILVER IODIDE PHASE DIAGRAM
DAVIS, BL
ADAMS, LH
[J]. SCIENCE, 1964, 146 (364) : 519 - &
[8] PHONON SOFTENING AND HIGH-PRESSURE LOW-SYMMETRY PHASES OF CESIUM IODIDE
NARDELLI, MB
BARONI, S
GIANNOZZI, P
[J]. PHYSICAL REVIEW LETTERS, 1992, 69 (07) : 1069 - 1072
[9] ELECTRONIC PHASE-TRANSITION OF CESIUM METAL UNDER HIGH-PRESSURE
KAMIMURA, T
YAMADA, M
KAMIGAKI, K
[J]. SCIENCE REPORTS OF THE RESEARCH INSTITUTES TOHOKU UNIVERSITY SERIES A-PHYSICS CHEMISTRY AND METALLURGY, 1982, 30 (02): : 169 - 184
[10] ELECTRON TUNNELLING STUDY OF SUPERCONDUCTING HIGH-PRESSURE PHASE OF BI
NEDELLEC, P
DUMOULIN, L
NOER, RJ
[J]. JOURNAL OF PHYSICS F-METAL PHYSICS, 1974, 4 (06): : L145 - L150

← 1 2 3 4 5 →