Magnetic and Electronic Properties of Valence-Controlled Ni-Fe Cyanide

被引：14

作者：

Shibata, Takayuki ^{[1
]}

Nakada, Fumiya ^{[1
]}

Kamioka, Hayato ^{[1
]}

Moritomo, Yutaka ^{[1
]}

机构：

[1] Univ Tsukuba, Dept Phys, Tsukuba, Ibaraki 3058571, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2008年 / 77卷 / 10期

关键词：

valence-control; host-guest interaction; ferromagnetism;

D O I：

10.1143/JPSJ.77.104714

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetics and electronic properties has been investigated for the Prussian blue type cyano-bridged transition metal compound, Na0.72-delta Ni[Fe(CN)(6)](0.68)center dot 5.1H(2)O (0.0 <= delta <= 0.58), as a function of the hole concentration delta of the d-electron system. Mother compound (delta = 0) takes Ni2+ (t(2g)(6)e(g)(2): S = 1)-Fe2+ (t(2g)(6): S = 0) configuration, and is paramagnetic down to zero temperature. Holes are selectively introduced on the Fe site. Ferromagnetic transition appears at delta = 0.26, and the transition temperature T-C increases from 11 K at delta = 0.26 to 21 K at delta = 0.58. We further systematically investigated the absorption spectra in the infrared-violet region against delta. We compared these magnetic and electronic properties of the valence-controlled Ni-Fe compound with those of an isostructural valence-controlled Co-Fe compound.

引用

页数：5

共 15 条

[1] CONSIDERATIONS ON DOUBLE EXCHANGE [J].

ANDERSON, PW ;

HASEGAWA, H .

PHYSICAL REVIEW, 1955, 100 (02) :675-681

[2]

[Anonymous], 1972, PHASE TRANSITIONS CR

[3] CRYSTAL-STRUCTURE OF PRUSSIAN BLUE - FE4[FE(CN)6]3.XH2O [J].

BUSER, HJ ;

SCHWARZENBACH, D ;

PETTER, W ;

LUDI, A .

INORGANIC CHEMISTRY, 1977, 16 (11) :2704-2710

[4] Hole-concentration-induced transformation of the magnetic and orbital structures in Nd1-xSrxMnO3 [J].

Kajimoto, R ;

Yoshizawa, H ;

Kawano, H ;

Kuwahara, H ;

Tokura, Y ;

Ohoyama, K ;

Ohashi, M .

PHYSICAL REVIEW B, 1999, 60 (13) :9506-9517

[5] Dynamics of charge-transfer pairs in the cyano-bridged Co2+-Fe3+ transition-metal compound [J].

Kamioka, H. ;

Moritomo, Y. ;

Kosaka, W. ;

Ohkoshi, S. .

PHYSICAL REVIEW B, 2008, 77 (18)

[6] Role of the intermediate state in the photoinduced process of Co-Fe cyanide [J].

Moritomo, Y. ;

Nakada, F. ;

Kamioka, H. ;

Hozumi, T. ;

Ohkoshi, S. .

PHYSICAL REVIEW B, 2007, 75 (21)

[7] Pressure effects on charge-ordering transitions in Perovskite manganites [J].

Moritomo, Y ;

Kuwahara, H ;

Tomioka, Y ;

Tokura, Y .

PHYSICAL REVIEW B, 1997, 55 (12) :7549-7556

[8] Electronic phase diagram of valence-controlled cyanide:: Na0.84-δCo[Fe(CN)6]0.71•3.8H2O (0≤δ≤0.61) [J].

Nakada, F. ;

Kamioka, H. ;

Moritomo, Y. ;

Kim, J. E. ;

Takata, M. .

PHYSICAL REVIEW B, 2008, 77 (22)

[9] The large Debye-Scherrer camera installed at SPring-8 BL02B2 for charge density studies [J].

Nishibori, E ;

Takata, M ;

Kato, K ;

Sakata, M ;

Kubota, Y ;

Aoyagi, S ;

Kuroiwa, Y ;

Yamakata, M ;

Ikeda, N .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2001, 467 :1045-1048

[10] MOSSBAUER AND INFRARED SPECTROSCOPIC STUDIES OF NOVEL MIXED-VALENCE STATES IN COBALTOUS FERROCYANIDES AND FERRICYANIDES [J].

REGUERA, E ;

BERTRAN, JF ;

DIAZ, C ;

BLANCO, J ;

RONDON, S .

HYPERFINE INTERACTIONS, 1990, 53 (1-4) :391-395

← 1 2 →