High pressure Raman study of BaMoO4

被引：29

作者：

Christofilos, A

Arvanitidis, J

Kampasakali, E

Papagelis, K

Ves, S

Kourouklis, GA ^{[1
]}

机构：

[1] Aristotle Univ Thessaloniki, Sch Technol, Div Phys, Thessaloniki 54124, Greece

[2] Aristotle Univ Thessaloniki, Dept Phys, Thessaloniki 54124, Greece

[3] Aristotle Univ Thessaloniki, Dept Chem, Thessaloniki 54124, Greece

[4] Univ Patras, Dept Mat Sci, Patras 26504, Greece

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2004年 / 241卷 / 14期

关键词：

D O I：

10.1002/pssb.200405234

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The structural stability of polycrystalline BaMoO4 under hydrostatic pressure has been investigated by means of Raman spectroscopy up to 8 GPa. Raman spectra reveal a pressure induced phase transition at similar to5.8 GPa. Upon pressure release the structure reverts to its ambient pressure scheelite (CaWO4) structure with no observable hysteresis. The large number of Raman active modes of the high pressure phase suggests either an increase of the size of the unit cell and/or a non-centrosymmetric structure leading to the activation of the ungerade modes of the scheelite structure. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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页码：3155 / 3160

页数：6

相关论文

共 14 条

[1] High-pressure Raman study and lattice dynamical calculations for SrWO4 [J].

Christofilos, D ;

Papagelis, K ;

Ves, S ;

Kourouklis, GA ;

Raptis, C .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (47) :12641-12650

[2] A HIGH-PRESSURE RAMAN-STUDY OF CALCIUM MOLYBDATE [J].

CHRISTOFILOS, D ;

KOUROUKLIS, GA ;

VES, S .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1995, 56 (08) :1125-1129

[3] Pressure induced phase transitions in alkaline earth tungstates [J].

Christofilos, D ;

Ves, S ;

Kourouklis, GA .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1996, 198 (01) :539-544

[4] Phase transitions and amorphization of CaWO4 at high pressure [J].

Errandonea, D ;

Somayazulu, M ;

Häusermann, D .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 2003, 235 (01) :162-169

[5] Scheelite CaWO4 at high pressures [J].

Grzechnik, A ;

Crichton, WA ;

Hanfland, M ;

van Smaalen, S .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2003, 15 (43) :7261-7270

[6] HIGH-PRESSURE CRYSTAL-CHEMISTRY OF SCHEELITE-TYPE TUNGSTATES AND MOLYBDATES [J].

HAZEN, RM ;

FINGER, LW ;

MARIATHASAN, JWE .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1985, 46 (02) :253-263

[7] EFFECT OF HIGH-PRESSURE ON THE RAMAN AND ELECTRONIC ABSORPTION-SPECTRA OF PBMOO4 AND PBWO4 [J].

JAYARAMAN, A ;

BATLOGG, B ;

VANUITERT, LG .

PHYSICAL REVIEW B, 1985, 31 (08) :5423-5427

[8] HIGH-PRESSURE RAMAN-STUDY OF ALKALINE-EARTH TUNGSTATES AND A NEW PRESSURE-INDUCED PHASE-TRANSITION IN BAWO4 [J].

JAYARAMAN, A ;

BATLOGG, B ;

VANUITERT, LG .

PHYSICAL REVIEW B, 1983, 28 (08) :4774-4777

[9] HIGH-PRESSURE RAMAN-STUDY OF SRMOO4 UP TO 37 GPA AND PRESSURE-INDUCED PHASE-TRANSITIONS [J].

JAYARAMAN, A ;

WANG, SY ;

SHIEH, SR ;

SHARMA, SK ;

MING, LC .

JOURNAL OF RAMAN SPECTROSCOPY, 1995, 26 (06) :451-455

[10] HIGH-PRESSURE RAMAN INVESTIGATION ON CDMOO4 AND PRESSURE-INDUCED PHASE-TRANSFORMATIONS [J].

JAYARAMAN, A ;

WANG, SY ;

SHARMA, SK .

PHYSICAL REVIEW B, 1995, 52 (14) :9886-9889