Spin fluctuation nearby magnetically unstable point in Li1-xZnxV2O4

被引：14

作者：

Fujiwara, N ^{[1
]}

Yasuoka, H ^{[1
]}

Ueda, Y ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Minato Ku, Tokyo 106, Japan

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.59.6294

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nuclear magnetic resonance (NMR) for Li-7 nuclei was performed in vanadium spinel Li-1_xZnxV2O4 (0 less than or equal to x less than or equal to 0.4) from 4.2 to 300 K. The relaxation rate (1/T-1) and the linewidth for a paramagnetic metal LiV2O4 take the maximum at 50 and 20 K, respectively, whereas those for x not equal 0 samples show monotonous increase with decreasing temperature toward a spin glass order which appears at about 15 K. These qualitative differences with respect to Zn concentration were investigated in relation to a metal nearby the ferromagnetically unstable point. [S0163-1829(99)05109-7].

引用

页码：6294 / 6300

页数：7

共 28 条

[1] NMR-STUDIES FOR SPINEL PHASE LIXZN1-XV2O4 SYSTEM [J].

AMAKO, Y ;

NAKA, T ;

ONODA, M ;

NAGASAWA, H ;

ERATA, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1990, 59 (06) :2241-2250

[2] ELECTRON CORRELATION IN LOW-CARRIER-DENSITY METALS - PHOTOEMISSION-STUDY OF THE HOLE-DOPED MOTT INSULATOR LIXZN1-XV2O4 [J].

FUJIMORI, A ;

KAWAKAMI, K ;

TSUDA, N .

PHYSICAL REVIEW B, 1988, 38 (11) :7889-7892

[3] Anomalous spin fluctuation in vanadium spinel LiV2O4 studied by 7Li-NMR [J].

Fujiwara, N ;

Yasuoka, H ;

Ueda, Y .

PHYSICAL REVIEW B, 1998, 57 (06) :3539-3542

[4]

FUJIWARA N, 1997, PHYSICA B, V59, P237

[5] NUCLEAR MAGNETIC-RESONANCE AND RELAXATION IN ITINERANT ELECTRON FERROMAGNET SC3IN [J].

HIOKI, T ;

MASUDA, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1977, 43 (04) :1200-1206

[6] Anomalous specific heat around ferromagnetic instability in metals [J].

Ishigaki, A ;

Moriya, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1996, 65 (02) :376-378

[7] Nuclear magnetic relaxation around the magnetic instabilities in metals [J].

Ishigaki, A ;

Moriya, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1996, 65 (10) :3402-3403

[8] Specific heat (1.2-108 K) and thermal expansion (4.4-297 K) measurements of the 3d heavy-fermion compound LiV2O4 [J].

Johnston, DC ;

Swenson, CA ;

Kondo, S .

PHYSICAL REVIEW B, 1999, 59 (04) :2627-2641

[9] UNIVERSAL RELATIONSHIP OF THE RESISTIVITY AND SPECIFIC-HEAT IN HEAVY-FERMION COMPOUNDS [J].

KADOWAKI, K ;

WOODS, SB .

SOLID STATE COMMUNICATIONS, 1986, 58 (08) :507-509

[10] METAL-INSULATOR-TRANSITION IN LIXZN(1-X)V2O4 [J].

KAWAKAMI, K ;

SAKAI, Y ;

TSUDA, N .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1986, 55 (09) :3174-3180

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