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Title: Giant magnetoresistance due to magnetoelectric currents in Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} hexaferrites

Abstract

The giant magnetoresistance and magnetoelectric (ME) effects of Z-type hexaferrite Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} were investigated. The present experiments indicated that an induced magnetoelectric current in a transverse conical spin structure not only presented a nonlinear behavior with magnetic field and electric field but also depended upon a sweep rate of the applied magnetic field. More interestingly, the ME current induced magnetoresistance was measured, yielding a giant room temperature magnetoresistance of 32.2% measured at low magnetic fields (∼125 Oe). These results reveal great potential for emerging applications of multifunctional magnetoelectric ferrite materials.

Authors:
 [1];  [2]; ; ; ; ; ;  [1]
  1. Department of Electrical and Computer Engineering, Center for Microwave Magnetic Materials and Integrated Circuits, Northeastern University, Boston, Massachusetts 02115 (United States)
  2. (China)
Publication Date:
OSTI Identifier:
22303523
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COBALT COMPOUNDS; CURRENTS; ELECTRIC FIELDS; ELECTRICAL PROPERTIES; FERRITES; MAGNETIC FIELDS; MAGNETIC PROPERTIES; MAGNETORESISTANCE; NONLINEAR PROBLEMS; SPIN; STRONTIUM COMPOUNDS; TEMPERATURE RANGE 0273-0400 K

Citation Formats

Wang, Xian, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, Su, Zhijuan, Sokolov, Alexander, Hu, Bolin, Andalib, Parisa, Chen, Yajie, E-mail: y.chen@neu.edu, and Harris, Vincent G. Giant magnetoresistance due to magnetoelectric currents in Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} hexaferrites. United States: N. p., 2014. Web. doi:10.1063/1.4896326.
Wang, Xian, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, Su, Zhijuan, Sokolov, Alexander, Hu, Bolin, Andalib, Parisa, Chen, Yajie, E-mail: y.chen@neu.edu, & Harris, Vincent G. Giant magnetoresistance due to magnetoelectric currents in Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} hexaferrites. United States. doi:10.1063/1.4896326.
Wang, Xian, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, Su, Zhijuan, Sokolov, Alexander, Hu, Bolin, Andalib, Parisa, Chen, Yajie, E-mail: y.chen@neu.edu, and Harris, Vincent G. Mon . "Giant magnetoresistance due to magnetoelectric currents in Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} hexaferrites". United States. doi:10.1063/1.4896326.
@article{osti_22303523,
title = {Giant magnetoresistance due to magnetoelectric currents in Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} hexaferrites},
author = {Wang, Xian and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074 and Su, Zhijuan and Sokolov, Alexander and Hu, Bolin and Andalib, Parisa and Chen, Yajie, E-mail: y.chen@neu.edu and Harris, Vincent G.},
abstractNote = {The giant magnetoresistance and magnetoelectric (ME) effects of Z-type hexaferrite Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} were investigated. The present experiments indicated that an induced magnetoelectric current in a transverse conical spin structure not only presented a nonlinear behavior with magnetic field and electric field but also depended upon a sweep rate of the applied magnetic field. More interestingly, the ME current induced magnetoresistance was measured, yielding a giant room temperature magnetoresistance of 32.2% measured at low magnetic fields (∼125 Oe). These results reveal great potential for emerging applications of multifunctional magnetoelectric ferrite materials.},
doi = {10.1063/1.4896326},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 11,
volume = 105,
place = {United States},
year = {2014},
month = {9}
}