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Oh, Yoon Seok
Laboratory for Strong Correlation in Quantum Materials
Research Interests
  • Multiferroic
  • Ferroelectric
  • Quantum Magnetism

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Strong magnetoelastic effect on the magnetoelectric phenomena of TbMn2O5

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Title
Strong magnetoelastic effect on the magnetoelectric phenomena of TbMn2O5
Author
Oh, Yoon SeokJeon, Byung-GuHaam, S. Y.Park, S.Correa, V. F.Lacerda, A. H.Cheong, S. -W.Jeon, Gun SangKim, Kee Hoon
Issue Date
2011-02
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW B, v.83, no.6, pp.060405
Abstract
Comparative studies of magnetoelectric susceptibility (α), magnetization (M), and magnetostriction (u) in TbMn2O5 reveal that the increment of M owing to the field-induced Tb3+ spin alignment produces a field-asymmetric line shape in the α(H) curve, which is conspicuous in a low-temperature incommensurate phase but persistently subsists in the entire ferroelectric phase. Correlations among electric polarization, u, and M2 variation represent linear relationships, unambiguously showing the significant role of Tb magnetoelastic effects on the low-field magnetoelectric phenomena of TbMn2O5. An effective free energy capturing the observed experimental features is also suggested.
URI
https://scholarworks.unist.ac.kr/handle/201301/9601
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=79961118583
DOI
10.1103/PhysRevB.83.060405
ISSN
2469-9950
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PHY_Journal Papers
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