Quadrupolar Order and Structural Phase Transition in DyB4 with Geometrical Frustration

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dc.creatorOkuyama, Daisuke
dc.creatorMatsumura, Takeshi
dc.creatorNakao, Hironori
dc.creatorMurakami, Youichi
dc.date2007-09-14
dc.date.accessioned2026-07-07T08:29:39Z
dc.date.available2026-07-07T08:29:39Z
dc.descriptionStructural phase transition accompanying with quadrupolar ordering in DyB4 with Shastry-Sutherland type geometrical frustration has been studied by X-ray diffraction. Previous study [D. Okuyama et al.: J. Phys. Soc. Jpn. 74 (2005) 2434.] using resonant X-ray scattering revealed short-range ordering of the Ozx-type quadrupolar moments and the c-plane component of the magnetic moments in addition to long-range ordering of the c-axis component of the magnetic moments. The present report focuses on the lattice distortion below the quadrupolar ordering temperature at TN2=12.7 K. The (0 0 l=integer) fundamental lattice reflection splits into four peaks along the h and k directions and the (h=even 0 0) reflection becomes broad along the l direction. This indicates that a structural transition from tetragonal to monoclinic takes place below TN2 together with the ordering of the quadrupolar moments.
dc.description3 pages, 4 figures, the Proceedings of ASR-WYP-2005
dc.identifierhttps://arxiv.org/abs/0709.2274
dc.identifierhttp://arxiv.org/abs/0709.2274
dc.identifierJ. Phys. Soc. Jpn 75 (2006) Suppl., p. 198
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/138013
dc.subjectStrongly Correlated Electrons
dc.titleQuadrupolar Order and Structural Phase Transition in DyB4 with Geometrical Frustration
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