High pressure behavior of ZrGeO4: A Raman spectroscopic and photoluminescence study

被引：9

作者：

Rao, Rekha ^{[1
]}

Sakuntala, T. ^{[2
]}

Achary, S. N. ^{[3
]}

Tyagi, A. K. ^{[3
]}

机构：

[1] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India

[2] Dept Atom Energy, Strateg Planning Grp, Bombay 400001, Maharashtra, India

[3] Bhabha Atom Res Ctr, Div Chem, Bombay 400085, Maharashtra, India

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 106卷 / 12期

关键词：

crystal field interactions; crystal symmetry; europium; high-pressure solid-state phase transformations; librational states; photoluminescence; Raman spectra; zirconium compounds; INDUCED PHASE-TRANSITIONS; EU3+ LUMINESCENCE; ZIRCON ZRSIO4; STABILITY; TEMPERATURE; CRYSTAL; OXIDES; HFGEO4; PROBE; IONS;

D O I：

10.1063/1.3270433

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High pressure behavior of ZrGeO4 has been investigated using Raman and photoluminescence (PL) spectroscopies up to 25 GPa in a diamond anvil cell. Under the application of pressure, the GeO4 librational mode exhibits softening, suggesting dynamical instability of the scheelite structure. Qualitative changes are noted in the Raman spectrum above 12 GPa, suggesting a possible transition around this pressure. High pressure PL behavior of Eu3+-related crystal field transitions indicates a clear change in the site symmetry of Eu3+ around 12 GPa, strongly supporting structural transition to a lower symmetry phase at this pressure.

引用

页数：5

共 50 条

[21] High pressure Raman spectroscopic study of structural polymorphism in cyclohexane
Pravica, MG
Shen, YR
Nicol, MF
APPLIED PHYSICS LETTERS, 2004, 84 (26) : 5452 - 5454
[22] High-pressure Raman spectroscopic study of spinel (ZnCr2O4)
Wang, ZW
Lazor, P
Saxena, SK
Artioli, G
JOURNAL OF SOLID STATE CHEMISTRY, 2002, 165 (01) : 165 - 170
[23] Raman spectroscopic study of high-pressure behavior of Ag3[Co(CN)6]
Rao, Rekha
Achary, S. N.
Tyagi, A. K.
Sakuntala, T.
PHYSICAL REVIEW B, 2011, 84 (05)
[24] In situ Raman spectroscopic study of the dissociation of methane hydrate at high pressure
Sun, Q.
Zheng, H. F.
APPLIED SPECTROSCOPY, 2006, 60 (09) : 985 - 988
[25] RAMAN-SPECTROSCOPIC STUDY OF THE HIGH-PRESSURE PHASE OF POLYETHYLENE
WUNDER, SL
MACROMOLECULES, 1981, 14 (04) : 1024 - 1030
[26] RAMAN-SPECTROSCOPIC STUDY OF HIGH-PRESSURE PHASE OF POLYETHYLENE
WUNDER, SL
PRIEST, RG
BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1981, 26 (03): : 327 - 327
[27] High pressure phase transitions in diglycine perchlorate: a Raman spectroscopic study
Himal Bhatt
S R Vishwakarma
Arkadev Roy
S Thomas
L Panicker
T Sakuntala
Bulletin of Materials Science, 45
[28] High-pressure behaviour of serpentine minerals: a Raman spectroscopic study
Auzende, AL
Daniel, I
Reynard, B
Lemaire, C
Guyot, F
PHYSICS AND CHEMISTRY OF MINERALS, 2004, 31 (05) : 269 - 277
[29] High-pressure raman spectroscopic study of sodium nitroprusside.
Barsan, MM
Gilson, DFR
Butler, IS
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2005, 229 : U974 - U974
[30] High pressure phase transitions in diglycine perchlorate: a Raman spectroscopic study
Bhatt, Himal
Vishwakarma, S. R.
Roy, Arkadev
Thomas, S.
Panicker, L.
Sakuntala, T.
BULLETIN OF MATERIALS SCIENCE, 2022, 45 (04)

← 1 2 3 4 5 →