Equation of state of scheelite-structured ZrGeO4 and HfGeO4

被引：16

作者：

Panchal, Vinod

Garg, Nandini

Achary, S. N.

Tyagi, A. K.

Sharma, Surinder M. ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Synchrotron Radiat Sect, Bombay 400085, Maharashtra, India

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

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2006年 / 18卷 / 35期

关键词：

D O I：

10.1088/0953-8984/18/35/011

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The high-pressure behaviour of scheelite-structured ZrGeO4 and HfGeO4 has been investigated with the help of angle-dispersive powder x-ray diffraction measurements. Our results show that these compounds do not undergo any phase transition up to the pressures of 20.7 and 19.0 GPa, respectively. The isothermal bulk modulus and its pressure derivatives are found to be 238 GPa and 4.5 for ZrGeO4, and 242 GPa and 4.8 for HfGeO4, implying that these germanates are highly incompressible.

引用

页码：8241 / 8250

页数：10

共 29 条

[1]

ALEKSANDROV IV, 1987, ZH EKSP TEOR FIZ, V66, P384

[2] 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

[3] CALCULATION OF BULK MODULI OF DIAMOND AND ZINCBLENDE SOLIDS [J].

COHEN, ML .

PHYSICAL REVIEW B, 1985, 32 (12) :7988-7991

[4]

Crichton WA, 2004, Z KRIST-NEW CRYST ST, V219, P337

[5] Equations of state of six metals above 94 GPa [J].

Dewaele, A ;

Loubeyre, P ;

Mezouar, M .

PHYSICAL REVIEW B, 2004, 70 (09) :094112-1

[6] NEUTRON-DIFFRACTION DETERMINATION OF THE STRUCTURE OF AN ORDERED SCHEELITE-TYPE - ZR3GEO8 [J].

ENNACIRI, A ;

MICHEL, D ;

JORBA, MPY .

MATERIALS RESEARCH BULLETIN, 1984, 19 (06) :793-799

[7] CRYSTAL-STRUCTURES OF HFGEO4 AND THGEO4 GERMANATES [J].

ENNACIRI, A ;

KAHN, A ;

MICHEL, D .

JOURNAL OF THE LESS-COMMON METALS, 1986, 124 :105-109

[8] MECHANISM OF FORMATION OF ZIRCON STAINS [J].

EPPLER, RA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1970, 53 (08) :457-&

[9] High-pressure structural study of the scheelite tungstates CaWO4 and SrWO4 -: art. no. 174106 [J].

Errandonea, D ;

Pellicer-Porres, J ;

Manjón, FJ ;

Segura, A ;

Ferrer-Roca, C ;

Kumar, RS ;

Tschauner, O ;

Rodríguez-Hernández, P ;

López-Solano, J ;

Radescu, S ;

Mujica, A ;

Muñoz, A ;

Aquilanti, G .

PHYSICAL REVIEW B, 2005, 72 (17)

[10] 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

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