Pressure-induced transition to Ni2In-type phase in lithium sulfide (Li2S)

被引：8

作者：

Barkalov, Oleg I. ^{[1
,2
]}

Naumov, Pavel G. ^{[1
,3
]}

Felser, Claudia ^{[1
]}

Medvedev, Sergey A. ^{[1
]}

机构：

[1] Max Planck Inst Chem Phys Solids, Nothnitzer Str 49, D-01187 Dresden, Germany

[2] Russian Acad Sci, Inst Solid State Phys, Academician Ossipyan Str 2, Chernogolovka 142432, Moscow District, Russia

[3] Russian Acad Sci, Shubnikov Inst Crystallog, Fed Sci Res Ctr Crystallog & Photon, Leninskii Prospekt 59, Moscow 119333, Russia

来源：

SOLID STATE SCIENCES | 2016年 / 61卷

关键词：

Chalcogenides; High pressure; Raman spectroscopy; X-ray diffraction; Crystal structure; OPTICAL-PROPERTIES; ANTIFLUORITE; SUPERCONDUCTIVITY; 1ST-PRINCIPLES; PREDICTION; ALLOYS; MODEL;

D O I：

10.1016/j.solidstatesciences.2016.10.002

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Raman spectroscopy and synchrotron angle-dispersive X-ray diffraction were applied to investigate pressure-induced phase transitions in lithium sulfide (Li2S). We observed two reversible transitions, first from the cubic antifluorite (Fm (3) over barm) phase to an orthorhombic anticotunnite (Pnma) phase at about 13 GPa, followed by a transition to the hexagonal Ni2In- type (P6(3)/mmc) structure above 30 GPa, as previously predicted by ab initio density functional theory calculations. (C) 2016 Elsevier Masson SAS. All rights reserved.

引用

页码：220 / 224

页数：5

共 27 条

[1]

Ai-Min H., 2009, CHINESE PHYS LETT, V26

[2]

ALTORFER F, 1992, SOLID STATE IONICS //, P325

[3] FINITE STRAIN ISOTHERM AND VELOCITIES FOR SINGLE-CRYSTAL AND POLYCRYSTALLINE NACL AT HIGH-PRESSURES AND 300-DEGREE-K [J].

BIRCH, F .

JOURNAL OF GEOPHYSICAL RESEARCH, 1978, 83 (NB3) :1257-1268

[4] A FUNDAMENTAL PARAMETERS APPROACH TO X-RAY LINE-PROFILE FITTING [J].

CHEARY, RW ;

COELHO, A .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1992, 25 (pt 2) :109-121

[5] NEW HIGH-PRESSURE PHASES OF ICE [J].

DEMONTIS, P ;

LESAR, R ;

KLEIN, ML .

PHYSICAL REVIEW LETTERS, 1988, 60 (22) :2284-2287

[6] HIGH-DENSITY STRUCTURES AND PHASE-TRANSITION IN AN IONIC MODEL OF H2O ICE [J].

DEMONTIS, P ;

KLEIN, ML ;

LESAR, R .

PHYSICAL REVIEW B, 1989, 40 (04) :2716-2718

[7] Phase transitions and equations of state of alkaline earth fluorides CaF2, SrF2, and BaF2 to Mbar pressures [J].

Dorfman, Susannah M. ;

Jiang, Fuming ;

Mao, Zhu ;

Kubo, Atsushi ;

Meng, Yue ;

Prakapenka, Vitali B. ;

Duffy, Thomas S. .

PHYSICAL REVIEW B, 2010, 81 (17)

[8] Conventional superconductivity at 203 kelvin at high pressures in the sulfur hydride system [J].

Drozdov, A. P. ;

Eremets, M. I. ;

Troyan, I. A. ;

Ksenofontov, V. ;

Shylin, S. I. .

NATURE, 2015, 525 (7567) :73-+

[9] Reversible antifluorite to anticotunnite phase transition in Li2S at high pressures [J].

Grzechnik, A ;

Vegas, A ;

Syassen, K ;

Loa, I ;

Hanfland, M ;

Jansen, M .

JOURNAL OF SOLID STATE CHEMISTRY, 2000, 154 (02) :603-611

[10] Two-dimensional detector software: From real detector to idealised image or two-theta scan [J].

Hammersley, AP ;

Svensson, SO ;

Hanfland, M ;

Fitch, AN ;

Hausermann, D .

HIGH PRESSURE RESEARCH, 1996, 14 (4-6) :235-248

← 1 2 3 →