The "1201" bismuth based cobaltite Bi0.5Cd0.3Sr2Co1.2O5-δ:: A new magnetoresistant spin glass like insulator

被引：14

作者：

Groult, D ^{[1
]}

Martin, C ^{[1
]}

Maignan, A ^{[1
]}

Pelloquin, D ^{[1
]}

Raveau, B ^{[1
]}

机构：

[1] ISMRA, Lab CRISMAT, CNRS, UMR 6508, F-14050 Caen, France

来源：

SOLID STATE COMMUNICATIONS | 1998年 / 105卷 / 09期

关键词：

D O I：

10.1016/S0038-1098(97)10198-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A new "1201" bismuth based cobaltite, Bi0.5Cd0.3Sr2Co1.2O5-delta, has been synthesized. Its single crystal structure determination shows that this tetragonal phase [a = 3.7765(1) Angstrom, c = 8.7812(3) Angstrom] exhibits regular single perovskite layers [SrCoO3](infinity) characterized by an elongation of the CoO6 octahedra, whereas the rock salt layers [Bi0.5Cd0.3Co0.2SrO2-delta](infinity) exhibits disordered phenomena especially concerning the distribution of the metallic species and splitting of the oxygen positions in the intermediate layer [(Bi, Cd, Co)O]. The most important feature of this oxide deals with its spin glass like behavior (T-cusp = 49 K) and negative magnetoresistance properties (MR% = 23% at 70 K). The latter are interpreted in terms of competition between double-exchange (Co3+-Co4+ ferromagnetic interactions) and superexchange (Co3+-Co3+ and Co4+-Co4+ antiferromagnetic interactions). (C) 1998 Elsevier Science Ltd.

引用

页码：583 / 588

页数：6

共 19 条

[1] SPIN-STATE AND VARIATION OF THE SPIN ORIENTATION OF CO(III) IN THE 112-TYPE PHASE YBA(CO2-XCUX)O-5
BARBEY, L
NGUYEN, N
CAIGNAERT, V
STUDER, F
RAVEAU, B
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1994, 112 (01) : 148 - 156
[2] A CLASS OF COBALT OXIDE MAGNETORESISTANCE MATERIALS DISCOVERED WITH COMBINATORIAL SYNTHESIS
BRICENO, G
CHANG, HY
SUN, XD
SCHULTZ, PG
XIANG, XD
[J]. SCIENCE, 1995, 270 (5234) : 273 - 275
[3] CRYSTAL AND MAGNETIC-STRUCTURE OF YBACUFEO5
CAIGNAERT, V
MIREBEAU, I
BOUREE, F
NGUYEN, N
DUCOURET, A
GRENECHE, JM
RAVEAU, B
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1995, 114 (01) : 24 - 35
[4] MAGNETIC ORDER IN THE TWO-DIMENSIONAL RANDOMLY MIXED FERROMAGNET-ANTIFERROMAGNET RB2CU1-XCOXF4
DEKKER, C
ARTS, AFM
DEWIJN, HW
[J]. PHYSICAL REVIEW B, 1988, 38 (16): : 11512 - 11522
[5] Spin-glass insulator state in (Tb-La)(2/3)Ca1/3MnO3 perovskite
DeTeresa, JM
Ibarra, MR
Garcia, J
Blasco, J
Ritter, C
Algarabel, PA
Marquina, C
delMoral, A
[J]. PHYSICAL REVIEW LETTERS, 1996, 76 (18) : 3392 - 3395
[6] YBACUFEO5+DELTA - A NOVEL OXYGEN-DEFICIENT PEROVSKITE WITH A LAYER STRUCTURE
ERRAKHO, L
MICHEL, C
LACORRE, P
RAVEAU, B
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1988, 73 (02) : 531 - 535
[7] SPIN-GLASS BEHAVIOR AND MAGNETIC PHASE-DIAGRAM OF LA1-XSRXCOO3 (0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.5) STUDIED BY MAGNETIZATION MEASUREMENTS
ITOH, M
NATORI, I
KUBOTA, S
MOTOYA, K
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1994, 63 (04) : 1486 - 1493
[8] CATION AND OXYGEN DISORDER IN THE STRUCTURES TLSR2CUO5 AND (PB0.63CU0.37)SR2COO5
KIM, JS
SWINNEA, JS
STEINFINK, H
[J]. JOURNAL OF THE LESS-COMMON METALS, 1989, 156 : 347 - 355
[9] THE LARGE MAGNETORESISTANCE OF LA1-XSRXCOO3 AT LOW-TEMPERATURES
MAHENDIRAN, R
RAYCHAUDHURI, AK
CHAINANI, A
SARMA, DD
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1995, 7 (43) : L561 - L565
[10] Magnetoresistance of the spin-state-transition compound La1-xSrxCoO3
Mahendiran, R
Raychaudhuri, AK
[J]. PHYSICAL REVIEW B, 1996, 54 (22): : 16044 - 16052

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