Charge ordering and spin gap in NaV2O5

被引:4
作者
Seo, H [1 ]
Fukuyama, H [1 ]
机构
[1] Univ Tokyo, Fac Sci, Dept Phys, Tokyo 1130033, Japan
关键词
inorganic compounds; magnetic materials; oxides; electrical properties; magnetic properties;
D O I
10.1016/S0022-3697(99)00056-6
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The ground state of NaV2O5 was investigated in terms of the Hartree approximation for both on-site and intersite Coulomb interactions. A zigzag-type of charge disproportionation (i.e. charge ordering) along the ladders of V ions is found to be the most stable, instead of the one-dimensional arrays of V4+ ions so far presumed. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1095 / 1097
页数:3
相关论文
共 21 条
[1]   Dynamical properties of the spin-Peierls compound alpha'-NaV2O5 [J].
Augier, D ;
Poilblanc, D ;
Haas, S ;
Delia, A ;
Dagotto, E .
PHYSICAL REVIEW B, 1997, 56 (10) :R5732-R5735
[2]   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
[3]   New inorganic spin-Peierls compound NaV2O5 evidenced by X-ray and neutron scattering [J].
Fujii, Y ;
Nakao, H ;
Yosihama, T ;
Nishi, M ;
Nakajima, K ;
Kakurai, K ;
Isobe, M ;
Ueda, Y ;
Sawa, H .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1997, 66 (02) :326-329
[4]   Magnon splitting induced by charge ordering in NaV2O5 [J].
Gros, C ;
Valentí, R .
PHYSICAL REVIEW LETTERS, 1999, 82 (05) :976-979
[5]   Wigner crystal type of charge ordering in an organic conductor with a quarter-filled band:: (DI-DCNQI)2Ag [J].
Hiraki, K ;
Kanoda, K .
PHYSICAL REVIEW LETTERS, 1998, 80 (21) :4737-4740
[6]  
Horsch P, 1998, EUR PHYS J B, V5, P367, DOI 10.1007/s100510050455
[7]   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
[8]  
MEETSMA A, 1998, IN PRESS ACTA CRYST
[9]   Exchange integrals of vanadates as revealed by magnetic-susceptibility measurements of NaV2O5 [J].
Mila, F ;
Millet, P ;
Bonvoisin, J .
PHYSICAL REVIEW B, 1996, 54 (17) :11925-11928
[10]   Critical dimerization strength of the quarter-filled t-J model [J].
Nishimoto, S ;
Ohta, Y .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1998, 67 (08) :2598-2601