High-pressure study of substrate material ScAlMgO4

被引：25

作者：

Errandonea, D. ^{[1
]}

Kumar, R. S. ^{[2
]}

Ruiz-Fuertes, J. ^{[1
]}

Segura, A. ^{[1
]}

Haussuehl, E. ^{[3
]}

机构：

[1] Univ Valencia, Dept Fis Aplicada ICMUV, MALTA Consolider Team, ES-46100 Burjassot, Spain

[2] Univ Nevada, Dept Phys & Astron, High Pressure Sci & Engn Ctr, Las Vegas, NV 89154 USA

[3] Goethe Univ Frankfurt, Inst Geowissensch, Abt Kristallog, D-60438 Frankfurt, Germany

来源：

PHYSICAL REVIEW B | 2011年 / 83卷 / 14期

关键词：

CRYSTAL; GPA; GAN;

D O I：

10.1103/PhysRevB.83.144104

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the structural properties of ScAlMgO4 studied under quasihydrostatic pressure using synchrotron high-pressure x-ray diffraction up to 40 GPa. We also report on single-crystal studies of ScAlMgO4 performed at 300 and 100 K. We found that the low-pressure phase remains stable up to 24 GPa. At 28 GPa, we detected a reversible phase transformation. The high-pressure phase is assigned to a monoclinic distortion of the low-pressure phase. No additional phase transition is observed up to 40 GPa. In addition, the equation of state, compressibility tensor, and thermal expansion coefficients of ScAlMgO4 are determined. The bulk modulus of ScAlMgO4 is found to be 143(8) GPa, with a strong compressibility anisotropy. For the trigonal low-pressure phase, the compressibility along the c axis is twice than the perpendicular one. A perfect lattice match with ZnO is retained under pressure in the pressure range of stability of wurtzite ZnO.

引用

页数：6

共 24 条

[1] Influence of deviatoric stress on the pressure-induced structural phase transition of ZnO studied by optical second harmonic generation measurements
Bayarjargal, L.
Winkler, B.
Haussuhl, E.
Boehler, R.
[J]. APPLIED PHYSICS LETTERS, 2009, 95 (06)
[2] Local structure of condensed zinc oxide -: art. no. 104101
Decremps, F
Datchi, F
Saitta, AM
Polian, A
Pascarelli, S
Di Cicco, A
Itié, JP
Baudelet, F
[J]. PHYSICAL REVIEW B, 2003, 68 (10)
[3] High pressure-high temperature equations of state of neon and diamond
Dewaele, Agnes
Datchi, Frederic
Loubeyre, Paul
Mezouar, Mohamed
[J]. PHYSICAL REVIEW B, 2008, 77 (09):
[4] Pressure-induced α→ω transition in titanium metal:: a systematic study of the effects of uniaxial stress
Errandonea, D
Meng, Y
Somayazulu, M
Häusermann, D
[J]. PHYSICA B-CONDENSED MATTER, 2005, 355 (1-4) : 116 - 125
[5] Post-spinel transformations and equation of state in ZnGa2O4: Determination at high pressure by in situ x-ray diffraction
Errandonea, D.
Kumar, Ravhi S.
Manjon, F. J.
Ursaki, V. V.
Rusu, E. V.
[J]. PHYSICAL REVIEW B, 2009, 79 (02):
[6] High-pressure structural investigation of several zircon-type orthovanadates
Errandonea, D.
Lacomba-Perales, R.
Ruiz-Fuertes, J.
Segura, A.
Achary, S. N.
Tyagi, A. K.
[J]. PHYSICAL REVIEW B, 2009, 79 (18)
[7] High-pressure electronic structure and phase transitions in monoclinic InSe:: X-ray diffraction, Raman spectroscopy, and density functional theory
Errandonea, D.
Martinez-Garcia, D.
Segura, A.
Haines, J.
Machado-Charry, E.
Canadell, E.
Chervin, J. C.
Chevy, A.
[J]. PHYSICAL REVIEW B, 2008, 77 (04)
[8] Structural stability of Fe5Si3 and Ni2Si studied by high-pressure x-ray diffraction and ab initio total-energy calculations
Errandonea, D.
Santamaria-Perez, D.
Vegas, A.
Nuss, J.
Jansen, M.
Rodriguez-Hernandez, P.
Munoz, A.
[J]. PHYSICAL REVIEW B, 2008, 77 (09)
[9] Characterization of the TiSiO4 structure and its pressure-induced phase transformations: Density functional theory study
Gracia, L.
Beltran, A.
Errandonea, D.
[J]. PHYSICAL REVIEW B, 2009, 80 (09):
[10] 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

← 1 2 3 →