The effect of remanence on the magnetoresistance in CrO2 powder compacts

被引：4

作者：

Ding, BJ ^{[1
]}

Ju, S

Li, ZY

机构：

[1] Suzhou Univ, Dept Phys, Suzhou 215006, Peoples R China

[2] CCAST, World Lab, Beijing 100080, Peoples R China

[3] Zhenjiang Coll, Dept Phys, Zhenjiang 212003, Peoples R China

来源：

PHYSICS LETTERS A | 2006年 / 353卷 / 04期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.physleta.2005.12.103

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this Letter, the effect of remanence on the magnetoresistance in chromium dioxides (CrO2) powder compacts is studied within the framework of two-channel model. The temperature dependence of the conductance and magnetoresistance is examined and the results are in good agreement with experimental data. (c) 2006 Elsevier B.V. All rights reserved.

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页码：349 / 354

页数：6

相关论文

共 19 条

[11] Theory of tunneling magnetoresistance in granular magnetic films [J].

Inoue, J ;

Maekawa, S .

PHYSICAL REVIEW B, 1996, 53 (18) :11927-11929

[12] Study of the temperature dependence of magnetoresistance of CrO2 powder compacts [J].

Ju, S ;

Li, ZY .

PHYSICS LETTERS A, 2002, 293 (3-4) :199-204

[13] CRO2 - A NEW HALF-METALLIC FERROMAGNET [J].

KAMPER, KP ;

SCHMITT, W ;

GUNTHERODT, G ;

GAMBINO, RJ ;

RUF, R .

PHYSICAL REVIEW LETTERS, 1987, 59 (24) :2788-2791

[14]

Manoharan SS, 1998, APPL PHYS LETT, V72, P984, DOI 10.1063/1.120616

[15] CRO2 PREDICTED AS A HALF-METALLIC FERROMAGNET [J].

SCHWARZ, K .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1986, 16 (09) :L211-L215

[16] Measuring the spin polarization of a metal with a superconducting point contact [J].

Soulen, RJ ;

Byers, JM ;

Osofsky, MS ;

Nadgorny, B ;

Ambrose, T ;

Cheng, SF ;

Broussard, PR ;

Tanaka, CT ;

Nowak, J ;

Moodera, JS ;

Barry, A ;

Coey, JMD .

SCIENCE, 1998, 282 (5386) :85-88

[17] Longitudinal magnetoresistance of CrO2 thin films [J].

Suzuki, K ;

Tedrow, PM .

APPLIED PHYSICS LETTERS, 1999, 74 (03) :428-429

[18] OBSERVATION OF VACUUM TUNNELING OF SPIN-POLARIZED ELECTRONS WITH THE SCANNING TUNNELING MICROSCOPE [J].

WIESENDANGER, R ;

GUNTHERODT, HJ ;

GUNTHERODT, G ;

GAMBINO, RJ ;

RUF, R .

PHYSICAL REVIEW LETTERS, 1990, 65 (02) :247-250

[19] Cr2O3 surface layer and exchange bias in an acicular CrO2 particle [J].

Zheng, RK ;

Liu, H ;

Wang, Y ;

Zhang, XX .

APPLIED PHYSICS LETTERS, 2004, 84 (05) :702-704