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Magnetization reversal in orthovanadate RVO3 compounds (R=La, Nd, Sm, Gd, Er, and Y): inhomogeneities caused by defects in the orbital sector of quasi-one-dimensional orbital systems
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Tung, L. D., Lees, Martin R., Balakrishnan, Geetha and Paul, Don McK. (2007) Magnetization reversal in orthovanadate RVO3 compounds (R=La, Nd, Sm, Gd, Er, and Y): inhomogeneities caused by defects in the orbital sector of quasi-one-dimensional orbital systems. Physical Review B, 75 (10). Article: 104404. doi:10.1103/PhysRevB.75.104404 ISSN 1098-0121.
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Official URL: http://dx.doi.org/10.1103/PhysRevB.75.104404
Abstract
We report on a study of various RVO3 single-crystal samples (R=La, Nd, Sm, Gd, Er, and Y) which show temperature-induced magnetization reversal. For compounds with lighter rare earths (R=La, Nd, and Sm), magnetization reversal can be observed for a magnetic field applied in the ab plane and along the c axis, whereas for the heavy rare earths (R=Gd and Er), magnetization reversal is only observed when the field is applied along the a axis. YVO3 has a magnetization reversal along all the main crystallographic axes in a modest applied field. We have found that some compounds are very sensitive to small trapped fields present in the superconducting solenoid of the magnetometer during the cooling. Based on the observed results, we argue that inhomogeniety caused by defects in the orbital sector in the quasi-one-dimensional orbital systems could account for the unusual magnetization reversal.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Physical Review B | ||||
Publisher: | American Physical Society | ||||
ISSN: | 1098-0121 | ||||
Official Date: | March 2007 | ||||
Dates: |
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Volume: | 75 | ||||
Number: | 10 | ||||
Number of Pages: | 10 | ||||
Page Range: | Article: 104404 | ||||
DOI: | 10.1103/PhysRevB.75.104404 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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