ANTIFERROMAGNETICALLY COUPLED CLUSTERS AND SUPERCONDUCTORS IN PULSED MAGNETIC-FIELDS

被引：5

作者：

FONER, S

机构：

[1] MIT, CTR PLASMA FUS, CAMBRIDGE, MA 02139 USA

[2] MIT, DEPT PHYS, CAMBRIDGE, MA 02139 USA

来源：

PHYSICA B-CONDENSED MATTER | 1994年 / 201卷

关键词：

D O I：

10.1016/0921-4526(94)91043-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Pulsed field differential magnetization, dM/dB, and Faraday rotation measurements are reviewed in selected dilute magnetic semiconductors which required fields above 30 T for determining the antiferromagnetic exchange interactions between isolated pairs of magnetic ions or large clusters. In some cases, nonequilibrium effects result in a narrowing (or broadening) of the peaks in dM/dB at the level crossing which produce the magnetization steps at high fields. Similar measurements on a molecular ferric wheel cluster of 10 Fe3+ ions are also discussed. Critical field measurements in K3C60 and Rb3C60 and other superconductors are briefly summarized. The pulsed field user facility is outlined.

引用

收藏

页码：13 / 19

页数：7

相关论文

共 35 条

[1]

AGGARWAL RL, 1985, 17TH P INT C PHYS SE, P1419

[2] SPLIT MAGNETIZATION STEPS IN CD1-XMNXSE - INEQUIVALENT NEAREST NEIGHBORS AND THE DZYALOSHINSKI-MORIYA INTERACTION [J].

BINDILATTI, V ;

VU, TQ ;

SHAPIRA, Y ;

AGOSTA, CC ;

MCNIFF, EJ ;

KERSHAW, R ;

DWIGHT, K ;

WOLD, A .

PHYSICAL REVIEW B, 1992, 45 (10) :5328-5338

[3] PHONON BOTTLENECK IN THE SPIN RELAXATION OF DILUTE MAGNETIC SEMICONDUCTORS - NEW MODEL FOR THE NARROWING OF THE MAGNETIZATION STEPS IN PULSED FIELDS [J].

BINDILATTI, V ;

VU, TQ ;

SHAPIRA, Y .

SOLID STATE COMMUNICATIONS, 1991, 77 (06) :423-426

[4] EVIDENCE OF UPPER-CRITICAL-FIELD ENHANCEMENT IN K3C60 POWDERS [J].

BOEBINGER, GS ;

PALSTRA, TTM ;

PASSNER, A ;

ROSSEINSKY, MJ ;

MURPHY, DW ;

MAZIN, II .

PHYSICAL REVIEW B, 1992, 46 (09) :5876-5879

[5] MEASUREMENTS OF THE UPPER CRITICAL-FIELD OF K3C60 AND RB3C60 POWDERS TO 60-T [J].

FONER, S ;

MCNIFF, EJ ;

HEIMAN, D ;

HUANG, SM ;

KANER, RB .

PHYSICAL REVIEW B, 1992, 46 (22) :14936-14939

[6] EXPERIMENTS WITH STRONG PULSED MAGNETIC-FIELDS PRODUCED BY CU/NB MICROCOMPOSITE WIRE-WOUND MAGNETS [J].

FONER, S .

PHYSICA B, 1989, 155 (1-3) :18-22

[7] COIL FOR PULSED MEGAGAUSS FIELDS [J].

FONER, S ;

KOLM, HH .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1956, 27 (07) :547-548

[8] 68.4-T-LONG PULSE MAGNET - TEST OF HIGH-STRENGTH MICROCOMPOSITE CU/NB CONDUCTOR [J].

FONER, S .

APPLIED PHYSICS LETTERS, 1986, 49 (15) :982-983

[9] MAGNETIZATION STEPS IN DILUTE MAGNETIC SEMICONDUCTORS TO 55-T - MN2+ PAIR SATURATION IN CD1-XMNXTE AND STEPS IN ZN1-XMNXSE,ZN1-XMNXTE, AND CD1-XMNXSE [J].

FONER, S ;

SHAPIRA, Y ;

HEIMAN, D ;

BECLA, P ;

KERSHAW, R ;

DWIGHT, K ;

WOLD, A .

PHYSICAL REVIEW B, 1989, 39 (16) :11793-11799

[10] 68.4T PULSED MAGNET FABRICATED WITH A WIRE-WOUND METAL-MATRIX CU/NB MICROCOMPOSITE [J].

FONER, S ;

BOBROV, E ;

RENAUD, C ;

GREGORY, E ;

WONG, J .

IEEE TRANSACTIONS ON MAGNETICS, 1988, 24 (02) :1059-1062

← 1 2 3 4 →