Anisotropic magnetoresistance in polycrystalline La 0.67(Ca 1-xSr x) 0.33MnO 3

Yiwei Liu; Zhihuan Yang; Huali Yang; Tao Zou; Yali Xie; Bin Chen; Young Sun; Qingfeng Zhan; Run Wei Li

doi:10.1088/0022-3727/45/24/245001

Anisotropic magnetoresistance in polycrystalline La _0.67(Ca _1-xSr _x) _0.33MnO ₃

Yiwei Liu^*
, Zhihuan Yang
, Huali Yang
, Tao Zou
, Yali Xie
, Bin Chen
, Young Sun
, Qingfeng Zhan
, Run Wei Li

^*Corresponding author for this work

CAS - Ningbo Institute of Material Technology and Engineering
CAS - Institute of Physics

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

We investigated the anisotropic magnetoresistance (AMR) effects in polycrystalline La _0.67(Ca _1xSr _x) _0.33MnO ₃. An anomalously large AMR of 19.1% was observed near the metalinsulator transition temperature (T _MI) in polycrystalline La _0.67Ca _0.33MnO ₃, but slight Sr doping could significantly depress the anomalous AMR around T _MI. By studying the temperature, magnetic field, current direction dependence of AMR and the phase transition process, it was suggested that the anisotropic spin-polarized transport and the demagnetization effect together with the metamagnetic transition around T _MI play important roles in the anomalous AMR effects in polycrystalline perovskite manganites.

Original language	English
Article number	245001
Journal	Journal of Physics D: Applied Physics
Volume	45
Issue number	24
DOIs	https://doi.org/10.1088/0022-3727/45/24/245001
State	Published - 20 Jun 2012
Externally published	Yes

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@article{0f64510969574fc4ab105e5e57ff9e72,

title = "Anisotropic magnetoresistance in polycrystalline La 0.67(Ca 1-xSr x) 0.33MnO 3 ",

abstract = "We investigated the anisotropic magnetoresistance (AMR) effects in polycrystalline La 0.67(Ca 1xSr x) 0.33MnO 3. An anomalously large AMR of 19.1\% was observed near the metalinsulator transition temperature (T MI) in polycrystalline La 0.67Ca 0.33MnO 3, but slight Sr doping could significantly depress the anomalous AMR around T MI. By studying the temperature, magnetic field, current direction dependence of AMR and the phase transition process, it was suggested that the anisotropic spin-polarized transport and the demagnetization effect together with the metamagnetic transition around T MI play important roles in the anomalous AMR effects in polycrystalline perovskite manganites.",

author = "Yiwei Liu and Zhihuan Yang and Huali Yang and Tao Zou and Yali Xie and Bin Chen and Young Sun and Qingfeng Zhan and Li, \{Run Wei\}",

year = "2012",

month = jun,

day = "20",

doi = "10.1088/0022-3727/45/24/245001",

language = "英语",

volume = "45",

journal = "Journal of Physics D: Applied Physics",

issn = "0022-3727",

publisher = "Institute of Physics",

number = "24",

}

TY - JOUR

T1 - Anisotropic magnetoresistance in polycrystalline La 0.67(Ca 1-xSr x) 0.33MnO 3

AU - Liu, Yiwei

AU - Yang, Zhihuan

AU - Yang, Huali

AU - Zou, Tao

AU - Xie, Yali

AU - Chen, Bin

AU - Sun, Young

AU - Zhan, Qingfeng

AU - Li, Run Wei

PY - 2012/6/20

Y1 - 2012/6/20

N2 - We investigated the anisotropic magnetoresistance (AMR) effects in polycrystalline La 0.67(Ca 1xSr x) 0.33MnO 3. An anomalously large AMR of 19.1% was observed near the metalinsulator transition temperature (T MI) in polycrystalline La 0.67Ca 0.33MnO 3, but slight Sr doping could significantly depress the anomalous AMR around T MI. By studying the temperature, magnetic field, current direction dependence of AMR and the phase transition process, it was suggested that the anisotropic spin-polarized transport and the demagnetization effect together with the metamagnetic transition around T MI play important roles in the anomalous AMR effects in polycrystalline perovskite manganites.

AB - We investigated the anisotropic magnetoresistance (AMR) effects in polycrystalline La 0.67(Ca 1xSr x) 0.33MnO 3. An anomalously large AMR of 19.1% was observed near the metalinsulator transition temperature (T MI) in polycrystalline La 0.67Ca 0.33MnO 3, but slight Sr doping could significantly depress the anomalous AMR around T MI. By studying the temperature, magnetic field, current direction dependence of AMR and the phase transition process, it was suggested that the anisotropic spin-polarized transport and the demagnetization effect together with the metamagnetic transition around T MI play important roles in the anomalous AMR effects in polycrystalline perovskite manganites.

UR - https://www.scopus.com/pages/publications/84861847292

U2 - 10.1088/0022-3727/45/24/245001

DO - 10.1088/0022-3727/45/24/245001

M3 - 文章

AN - SCOPUS:84861847292

SN - 0022-3727

VL - 45

JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

IS - 24

M1 - 245001

ER -

Anisotropic magnetoresistance in polycrystalline La _0.67(Ca _1-xSr _x) _0.33MnO ₃

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