Two Dimensional Kagome Correlations and Field Induced Order in the Ferromagnetic XY Pyrochlore Yb2Ti2O7

Authors :: Ross, K. A.
Ruff, J. P. C.
Adams, C. P.
Gardner, J. S.
Dabkowska, H. A.
Qiu, Y.
Copley, J. R. D.
Gaulin, B. D.
Source :: K. A. Ross, J. P. C. Ruff, C. P. Adams, J. S. Gardner, H. A. Dabkowska, Y. Qiu, J. R. D. Copley, and B. D. Gaulin. Phys. Rev. Lett. 103, 227202 (2009)
Publication Year :: 2009
Abstract: Neutron scattering measurements show the ferromagnetic XY pyrochlore Yb2Ti2O7 to display strong quasi-two dimensional (2D) spin correlations at low temperature, which give way to long range order (LRO) under the application of modest magnetic fields. Rods of scattering along < 111 > directions due to these 2D spin correlations imply a magnetic decomposition of the cubic pyrochlore system into decoupled kagome planes. A magnetic field of ~0.5 T applied along the [1-10] direction induces a transition to a 3D LRO state characterized by long-lived, dispersive spin waves. Our measurements map out a complex low temperature-field phase diagram for this exotic pyrochlore magnet.<br />Comment: 5 pages, 4 figures

Database :: arXiv
Journal :: K. A. Ross, J. P. C. Ruff, C. P. Adams, J. S. Gardner, H. A. Dabkowska, Y. Qiu, J. R. D. Copley, and B. D. Gaulin. Phys. Rev. Lett. 103, 227202 (2009)
Publication Type :: Report
Accession number :: edsarx.0902.0329
Document Type :: Working Paper
Full Text :: https://doi.org/10.1103/PhysRevLett.103.227202

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