Inversion symmetry in the spin-Peierls compound α′-NaV2O5

被引：86

作者：

Meetsma, A

de Boer, JL

Damascelli, A

Jegoudez, J

Revcolevschi, A

Palstra, TTM

机构：

[1] Univ Groningen, Ctr Mat Sci, Inorgan Solid State Chem Lab, Crystal Struct Ctr, NL-9747 AG Groningen, Netherlands

[2] Univ Groningen, Ctr Mat Sci, Solid State Phys Lab, NL-9747 AG Groningen, Netherlands

[3] Univ Paris 11, Lab Chim Solides, F-91405 Orsay, France

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1998年 / 54卷

关键词：

D O I：

10.1107/S0108270198004855

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

At room temperature, sodium pentaoxodivanadate, NaV2O5, was found to have the centrosymmetric space group Pmmn. This space group implies the presence of only one kind of V site, in contrast with previous reports [Carpy & Galy (1975), Acta Cryst. B31, 1481-1483] of the non-centrosymmetric P2(1)mn counterpart. This indicates a non-integer valence state of vanadium, Furthermore, this symmetry has consequences for the interpretation of the transition at 34 K, which was ascribed to a spin-Peierls transition of one-dimensional chains of V4+ ions.

引用

页码：1558 / 1561

页数：4

共 20 条

[1]

BOER JL, 1984, ACTA CRYSTALLOGR A, V40, pC410

[2]

BONNER JC, 1964, PHYS REV A, V135, pA610

[3]

BOUDIAS C, 1996, CIRC CARINE CRYSTALL

[4] REFINING CRYSTAL-STRUCTURE OF ALPHA-VANADIUM SODIUM OXYBRONZE NAV2O5ALPHA [J].

CARPY, A ;

GALY, J .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1975, 31 (MAY15) :1481-1482

[5]

*ENR NON, 1994, CAD 4 UNIX SOFTW VER

[6] ON ENANTIOMORPH-POLARITY ESTIMATION [J].

FLACK, HD .

ACTA CRYSTALLOGRAPHICA SECTION A, 1983, 39 (NOV) :876-881

[7] OBSERVATION OF THE SPIN-PEIERLS TRANSITION IN LINEAR CU2+ (SPIN-1/2) CHAINS IN AN INORGANIC COMPOUND CUGEO3 [J].

HASE, M ;

TERASAKI, I ;

UCHINOKURA, K .

PHYSICAL REVIEW LETTERS, 1993, 70 (23) :3651-3654

[8] Magnetic susceptibility of quasi-one-dimensional compound alpha'-NaV2O5 - Possible spin-Peierls compound with high critical temperature of 34 K [J].

Isobe, M ;

Ueda, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1996, 65 (05) :1178-1181

[9]

ISOBE M, 1998, IN PRESS J CRYST GRO

[10]

Johnson C.K., 1965, ORTEP Report ORNL-3794

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