Competition Between the Inter- and Intra-sublattice Interactions in Yb2V2O7

Published

February 27, 2015

Author(s)

Z. L. Dun, J. Ma, H. B. Cao, Yiming Qiu, John R. Copley, T. Hong, M. Matsuda, J. G. Cheng, M. Lee, E. S. Choi, S. Johnston, H. D. Zhou

Abstract

We studied single crystals of Yb₂V₂O₇ using dc and ac susceptibility measurements, elastic and inelastic neutron scattering measurements, and linear spin wave theory. The experimental data shows a ferromagnetic ordering of V⁴⁺ ions at 70 K, a short-range ordering of Yb³⁺ ions below 40 K, and finally a long-range non-collinear ordering of Yb³⁺ ions below 15 K. With external magnetic field oriented along the [111] axis, the Yb-sublattice experiences a slip flop transition related to the "three-in one-out" spin structure. By modeling the spin wave excitations, we extract the Hamiltonian parameters. Our results confirm that although the extra inter-sublattice Yb-Yb interactions, based on the pyrochlore lattice, still stabilize the Yb ions' non-collinear spin structure and spin flop transition.

Citation

Physical Review B

Volume

91

Issue

6

Pub Type

Journals

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Keywords

geometrical frustration, neutron scattering

Citation

Dun, Z. , Ma, J. , Cao, H. , Qiu, Y. , Copley, J. , Hong, T. , Matsuda, M. , Cheng, J. , Lee, M. , Choi, E. , Johnston, S. and Zhou, H. (2015), Competition Between the Inter- and Intra-sublattice Interactions in Yb₂V₂O₇, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=917406 (Accessed December 26, 2024)