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Resonant X-ray scattering study of quadrupole-strain coupling in DyB4
- Authors
- Ji, S[Ji, S.]; Song, C[Song, C.]; Koo, J[Koo, J.]; Park, J[Park, J.]; Park, YJ[Park, Y. J.]; Lee, KB[Lee, K.-B.]; Lee, S[Lee, Seongsu]; Park, JG[Park, J.-G.]; Kim, JY[Kim, J. Y.]; Cho, BK[Cho, B. K.]; Hong, KP[Hong, K.-P.]; Lee, CH[Lee, C.-H.]; Iga, F[Iga, F.]
- Issue Date
- 17-Aug-2007
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.99, no.7
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 99
- Number
- 7
- ISSN
- 0031-9007
- Abstract
- X-ray and neutron scattering studies were performed on DyB4 which exhibits both a quadrupolar ordering and a macroscopic lattice distortion. A forbidden reflection at 7.792 keV near the Dy L-3 absorption edge is identified as a quadrupolar ordering peak, and the quadrupolar order and a monoclinic structural distortion develop concomitantly below 12.3 K as second-order-type phase transitions. Coupling between the quadrupolar order and the strain in DyB4 is directly demonstrated by observing that both order parameters are proportional to each other.
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