Size and structural effects on the magnetic behaviour of Gd2CuO4 particles

被引：2

作者：

Mira, J

Rivas, J

Fiorani, D

Caciuffo, R

Rinaldi, D

Vazquez, CV

Mahia, J

Quintela, MAL

Oseroff, SB

机构：

[1] CNR,IST CHIM MAT,I-00016 MONTEROTONDO,ROMA,ITALY

[2] UNIV ANCONA,DIPARTIMENTO SCI MAT & TERRA,I-60131 ANCONA,ITALY

[3] UNIV SANTIAGO,DEPT QUIM FIS,E-15706 SANTIAGO COMPOSTE,SPAIN

[4] SAN DIEGO STATE UNIV,DEPT PHYS,SAN DIEGO,CA 92182

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1996年 / 164卷 / 1-2期

关键词：

magnetic irreversibilities; fine particles; size effects; synthesis-temperature effects; weak ferromagnetism;

D O I：

10.1016/S0304-8853(96)00359-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic properties of Gd2CuO4, synthesized by ceramic and sol-gel methods, have been investigated by de and ac susceptibility measurements. Both static and dynamic properties have been found to depend on the synthesis temperature for ceramic samples, and on the particle size for sol-gel ones. The role of structural and size effects on the observed changes is discussed.

引用

页码：241 / 250

页数：10

共 35 条

[1] STRUCTURE AND RARE-EARTH MAGNETISM IN (ND1-XGDX)2CUO4 [J].

ADELMANN, P ;

AHRENS, R ;

CZJZEK, G ;

ROTH, G ;

SCHMIDT, H ;

STEINLEITNER, C .

PHYSICAL REVIEW B, 1992, 46 (06) :3619-3630

[2] MAGNETIC DYNAMICS OF LA2CUO4 AND LA2-XBAXCUO4 [J].

AEPPLI, G ;

HAYDEN, SM ;

MOOK, HA ;

FISK, Z ;

CHEONG, SW ;

RYTZ, D ;

REMEIKA, JP ;

ESPINOSA, GP ;

COOPER, AS .

PHYSICAL REVIEW LETTERS, 1989, 62 (17) :2052-2055

[3] HIGH-PRESSURE SYNTHESIS AND STRUCTURAL STUDY OF R2CUO4 COMPOUNDS WITH R = Y, TB, DY, HO, ER, TM [J].

BORDET, P ;

CAPPONI, JJ ;

CHAILLOUT, C ;

CHATEIGNER, D ;

CHENAVAS, J ;

FOURNIER, T ;

HODEAU, JL ;

MAREZIO, M ;

PERROUX, M ;

THOMAS, G ;

VARELA, A .

PHYSICA C, 1992, 193 (1-2) :178-188

[4] STRUCTURE-ANALYSIS OF GD2CUO4 - A NEW MODIFICATION OF THE T' PHASE [J].

BRADEN, M ;

PAULUS, W ;

COUSSON, A ;

VIGOUREUX, P ;

HEGER, G ;

GOUKASSOV, A ;

BOURGES, P ;

PETITGRAND, D .

EUROPHYSICS LETTERS, 1994, 25 (08) :625-630

[5] DISAPPEARANCE OF 3-DIMENSIONAL MAGNETIC-ORDERING IN GD2CUO4 [J].

CHATTOPADHYAY, T ;

BROWN, PJ ;

ROESSLI, B .

JOURNAL OF APPLIED PHYSICS, 1994, 75 (10) :6816-6818

[6]

DYZALOSHINSKII I, 1958, J PHYS CHEM PHYS SOL, V4, P241

[7] TWO-DIMENSIONAL SPIN CORRELATIONS AND SUCCESSIVE MAGNETIC PHASE-TRANSITIONS IN ND2CUO4 [J].

ENDOH, Y ;

MATSUDA, M ;

YAMADA, K ;

KAKURAI, K ;

HIDAKA, Y ;

SHIRANE, G ;

BIRGENEAU, RJ .

PHYSICAL REVIEW B, 1989, 40 (10) :7023-7026

[8] STATIC AND DYNAMIC SPIN CORRELATIONS IN PURE AND DOPED LA2CUO4 [J].

ENDOH, Y ;

YAMADA, K ;

BIRGENEAU, RJ ;

GABBE, DR ;

JENSSEN, HP ;

KASTNER, MA ;

PETERS, CJ ;

PICONE, PJ ;

THURSTON, TR ;

TRANQUADA, JM ;

SHIRANE, G ;

HIDAKA, Y ;

ODA, M ;

ENOMOTO, Y ;

SUZUKI, M ;

MURAKAMI, T .

PHYSICAL REVIEW B, 1988, 37 (13) :7443-7453

[9] COUPLED WEAK FERROMAGNETIC PARAMAGNETIC EXCITATIONS IN (GD0.5EU0.5)2CUO4 [J].

FAINSTEIN, A ;

TOVAR, M ;

FISK, Z .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1992, 4 (06) :1581-1593

[10] DEFECTS AND FLUX CONTAMINATION IN ND2-XCEXCUO4, GD2-XCEXCUO4 CRYSTALS - OXYGEN DISORDER IN GD2CUO4 CRYSTALS [J].

GALEZ, P ;

SCHWEISS, P ;

COLLIN, G ;

BELLISSENT, R .

JOURNAL OF THE LESS-COMMON METALS, 1990, 164 :784-791

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