Extended charge-transfer state of RbMn[Fe(CN)6]

被引：9

作者：

Kato, Kenichi ^{[1
]}

Moritomo, Yutaka ^{[2
]}

Tanaka, Hiroshi ^{[3
]}

Tokoro, Hiroko ^{[4
]}

Ohkoshi, Shin-Ichi ^{[4
]}

Takata, Masaki ^{[1
]}

机构：

[1] RIKEN, SPring 8 Ctr, Sayo Gun, Hyogo 6795148, Japan

[2] Univ Tsukuba, Dept Phys, Tsukuba, Ibaraki 3058577, Japan

[3] Shimane Univ, Dept Mat Sci, Matsue, Shimane 6908504, Japan

[4] Univ Tokyo, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2007年 / 76卷 / 12期

关键词：

charge-transfer transition; MEM charge density; electrostatic potential; RUBIDIUM MANGANESE HEXACYANOFERRATE; PHOTOINDUCED PHASE-TRANSITION; RBMN<FE(CN)(6)>; DENSITY;

D O I：

10.1143/JPSJ.76.123602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Based on the maximum entropy method (MEM) charge density, we have visualized the electrostatic potential of a charge-transfer compound, RbMn[Fe(CN)6], which shows the charge-transfer transition from the nominal Mn2+-Fe3+ configuration to the Mn3+-Fe2+ one below 220 K. In the low-temperature phase, the transferred electron spreads over the hexacyanoferrate ([Fe(CN)61) via the strong Fet(2g)-CN pi* hybridization. Such an extended charge-transfer state is responsible for the relatively strong ferromagnetic coupling between the neighbouring Mn3+ spins.

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页数：3

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