SPIN-FLOP PHASE AND EFFECT OF CE4+ AND ND3+ DOPING IN GD2CUO4

被引：8

作者：

JARDIM, RF

WESTPHAL, CH

BECERRA, CC

PADUAN, A

机构：

[1] Instituto de Física, Universidade de so Paulo, 01498, So Paulo

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.45.10485

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic-susceptibility measurements as a function of temperature and magnetic field were performed in polycrystalline samples of Gd2CUO4, Gd1.85Ce0.15CUO4, and Gd1.8Nd0.2CUO4. The previously observed anomaly in the magnetic susceptibility of Gd2CuO4, at 20 K associated with the possible existence of weak ferromagnetic behavior was found to be strongly suppressed by Ce4+ and Nd3+ doping. Below 6.8 K the susceptibility of Gd2CUO4 is almost field independent above a few kilo-oersted, up to at least 40 kOe, suggesting the occurrence of a spin-flop phase. An exchange field of 35 kOe and an anisotropy field of 20 Oe were obtained.

引用

页码：10485 / 10489

页数：5

共 20 条

[1] MAGNETOCALORIC EFFECTS AND ANGULAR VARIATION OF MAGNETIC PHASE DIAGRAM OF ANTIFERROMAGNETIC GDALO3 [J].

BLAZEY, KW ;

ROHRER, H ;

WEBSTER, R .

PHYSICAL REVIEW B, 1971, 4 (07) :2287-&

[2] SUPERCONDUCTING AND NORMAL STATE PROPERTIES OF Y1-XPRXBA2CU307-DELTA, Y1-XNAXBA2CU307-DELTA [J].

DALICHAOUCH, Y ;

TORIKACHVILI, MS ;

EARLY, EA ;

LEE, BW ;

SEAMAN, CL ;

YANG, KN ;

ZHOU, H ;

MAPLE, MB .

SOLID STATE COMMUNICATIONS, 1988, 65 (09) :1001-1006

[3] SYNTHESIS AND X-RAY CHARACTERIZATION OF SUPERCONDUCTING AND RELATED ND2-XCEXCUO4-Y GD2-XCEXCUO4-Y COMPOUNDS [J].

HUANG, TC ;

MORAN, E ;

NAZZAL, AI ;

TORRANCE, JB .

PHYSICA C, 1989, 158 (1-2) :148-152

[4]

JARDIM RF, 1990, PROGR HIGH TEMP SUPE, V25, P183

[5] REDETERMINATION OF THE STRUCTURE OF GD2CUO4 - A SITE POPULATION ANALYSIS [J].

KUBATMARTIN, KA ;

FISK, Z ;

RYAN, RR .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1988, 44 :1518-1520

[6]

MAPLE MB, 1990, PROGR HIGH TEMP SUPE, V25, P536

[7] 3-DIMENSIONAL MAGNETIC-STRUCTURES AND RARE-EARTH MAGNETIC-ORDERING IN ND2CUO4 AND PR2CUO4 [J].

MATSUDA, M ;

YAMADA, K ;

KAKURAI, K ;

KADOWAKI, H ;

THURSTON, TR ;

ENDOH, Y ;

HIDAKA, Y ;

BIRGENEAU, RJ ;

KASTNER, MA ;

GEHRING, PM ;

MOUDDEN, AH ;

SHIRANE, G .

PHYSICAL REVIEW B, 1990, 42 (16) :10098-10107

[8] ABOUT OXOCUPRATES .7. CRYSTAL-STRUCTURE OF ND2CUO4 [J].

MULLERBUSCHBAUM, H ;

WOLLSCHLAGER, W .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1975, 414 (01) :76-80

[9] MAGNETIC PHASE-DIAGRAM OF NICL2.(H20)-H-6 - LOW-TEMPERATURE CANTED-PARAMAGNETIC BOUNDARY AND THE BICRITICAL POINT [J].

OLIVEIRA, NF ;

FILHO, AP ;

SALINAS, SR ;

BECERRA, CC .

PHYSICAL REVIEW B, 1978, 18 (11) :6165-6177

[10] COMPLEX MAGNETIC-PROPERTIES OF THE RARE-EARTH COPPER OXIDES, R2CUO4, OBSERVED VIA MEASUREMENTS OF THE DC AND AC MAGNETIZATION, EPR, MICROWAVE MAGNETOABSORPTION, AND SPECIFIC-HEAT [J].

OSEROFF, SB ;

RAO, D ;

WRIGHT, F ;

VIER, DC ;

SCHULTZ, S ;

THOMPSON, JD ;

FISK, Z ;

CHEONG, SW ;

HUNDLEY, MF ;

TOVAR, M .

PHYSICAL REVIEW B, 1990, 41 (04) :1934-1948

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