Magnetic properties of the double perovskites A2FeMoO6;: A = Ca, Sr, Ba

被引：166

作者：

Borges, RP ^{[1
]}

Thomas, RM

Cullinan, C

Coey, JMD

Suryanarayanan, R

Ben-Dor, L

Pinsard-Gaudart, L

Revcolevschi, A

机构：

[1] Trinity Coll, Dept Phys, Dublin 2, Ireland

[2] Univ Paris Sud, CNRS, Lab Physicochim Solides, F-91405 Orsay, France

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1999年 / 11卷 / 40期

关键词：

D O I：

10.1088/0953-8984/11/40/104

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The double-perovskite oxides Ca2FeMoO6, Sr2FeMoO6 and Ba2FeMoO6 show evidence of ferromagnetic metallic behaviour, with Curie temperatures of 345-426 K and saturation magnetization of 3.5-3.9 mu(B) /formula unit. Ceramics show little anisotropic magnetoresistance, but the low-held isotropic negative magnetoresistance of Sr2FeMoO6 is 7% in 1 T at room temperature and reaches 15% at 77 K. An effect of about 1% is found in 20 mT at room temperature in both ceramics and pressed powders of this compound.

引用

页码：L445 / L450

页数：6

共 17 条

[1] Pulsed-laser-deposited epitaxial Sr2FeMoO6-y thin films:: Positive and negative magnetoresistance regimes
Asano, H
Ogale, SB
Garrison, J
Orozco, A
Li, YH
Li, E
Smolyaninova, V
Galley, C
Downes, M
Rajeswari, M
Ramesh, R
Venkatesan, T
[J]. APPLIED PHYSICS LETTERS, 1999, 74 (24) : 3696 - 3698
[2] Magnetic surface effects and low-temperature magnetoresistance in manganese perovskites
Balcells, LL
Fontcuberta, J
Martinez, B
Obradors, X
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1998, 10 (08) : 1883 - 1890
[3] Mixed-valence manganites
Coey, JMD
Viret, M
von Molnár, S
[J]. ADVANCES IN PHYSICS, 1999, 48 (02) : 167 - 293
[4] Powder magnetoresistance (invited)
Coey, JMD
[J]. JOURNAL OF APPLIED PHYSICS, 1999, 85 (08) : 5576 - 5581
[5] Inverse tunnel magnetoresistance in Co/SrTiO3/La0.7Sr0.3MnO3:: New ideas on spin-polarized tunneling
De Teresa, JM
Barthélémy, A
Fert, A
Contour, JP
Lyonnet, R
Montaigne, F
Seneor, P
Vaurès, A
[J]. PHYSICAL REVIEW LETTERS, 1999, 82 (21) : 4288 - 4291
[6] Galasso F., 1969, Structure, properties and preparation of perovskite type compounds
[7] Magnetic and magnetotransport properties of the ordered perovskite Sr2FeMoO6
García-Landa, B
Ritter, C
Ibarra, MR
Blasco, J
Algarabel, PA
Mahendiran, R
García, J
[J]. SOLID STATE COMMUNICATIONS, 1999, 110 (08) : 435 - 438
[8] Spin-polarized intergrain tunneling in La-2/Sr-3(1)/3MnO3
Hwang, HY
Cheong, SW
Ong, NP
Batlogg, B
[J]. PHYSICAL REVIEW LETTERS, 1996, 77 (10) : 2041 - 2044
[9] Intergrain tunneling magnetoresistance in polycrystals of the ordered double perovskite Sr2FeReO6
Kobayashi, KI
Kimura, T
Tomioka, Y
Sawada, H
Terakura, K
Tokura, Y
[J]. PHYSICAL REVIEW B, 1999, 59 (17): : 11159 - 11162
[10] Room-temperature magnetoresistance in an oxide material with an ordered double-perovskite structure
Kobayashi, KL
Kimura, T
Sawada, H
Terakura, K
Tokura, Y
[J]. NATURE, 1998, 395 (6703) : 677 - 680

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