Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/94709
Title: Intrinsic domain-wall resistivity in half-metallic manganite thin films
Authors: Bakaul, Saidur Rahman
Wu, Tom
Hu, W.
Kimura, T.
Issue Date: 2012
Source: Bakaul, S. R., Hu, W., Wu, T., & Kimura, T. (2012). Intrinsic domain-wall resistivity in half-metallic manganite thin films. Physical Review B, 86(18).
Series/Report no.: Physical review B
Abstract: Deciphering the intrinsic magnetic domain-wall (DW) resistivity of manganite materials by typical low-field magnetoresistance measurement is flawed due to the addition of different galvanomagnetic effects such as, colossal magnetoresistance, Lorentz force magnetoresistance, and anisotropic magnetoresistance (AMR). In this paper, by taking the advantage of rotational anisotropy and the stable rotation of the DW planes in half-metallic manganite La0.7Sr0.3MnO3 film, we deploy a remanent state resistance measurement technique to exclude all the field-dependent spurious effects from the intrinsic DW resistivity. To further refine its magnitude, we calculate the remanent state DW AMR by exploiting the three-dimensional micromagnetic simulation, which reveals a comparable but opposite contribution to the positive DW resistivity. From these results, we estimate the intrinsic DW resistance-area product in La0.7Sr0.3MnO3 to be 1.9×10−15 Ω·m2.
URI: https://hdl.handle.net/10356/94709
http://hdl.handle.net/10220/9175
DOI: http://dx.doi.org/10.1103/PhysRevB.86.184404
Rights: © 2012 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at the following official DOI: [http://dx.doi.org/10.1103/PhysRevB.86.184404]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
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