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Oh, Yoon Seok
Strong Correlation in Quantum Materials Lab
Research Interests
  • Materials for Quantum Information Processing, Transport, and Storage
  • Quantum Magnet
  • Multiferroic

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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
Keywords
MAGNETOSTRICTION
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
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DOI
10.1103/PhysRevB.83.060405
ISSN
2469-9950
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PHY_Journal Papers
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