Magnetic correlations in spin ice Ho2-xYxTi2O7 as revealed by neutron polarization analysis - Condensed Matter > Strongly Correlated ElectronsReport as inadecuate




Magnetic correlations in spin ice Ho2-xYxTi2O7 as revealed by neutron polarization analysis - Condensed Matter > Strongly Correlated Electrons - Download this document for free, or read online. Document in PDF available to download.

Abstract: We present single-crystal neutron-diffuse-scattering measurements withpolarization analysis on the spin ice Ho2-xYxTi2O7 x = 0, 0.3, and 1. At 2 K,the spin flip scattering patterns are typical of a nearest-neighbor spin iceand the effects of Y doping are seen in the width of the pinch points. Atlow-T, the spin flip patterns are characteristic of a dipolar spin ice and areunaffected by Y doping. In the non-spin flip channel, we observe the signatureof strong antiferromagnetic correlations at the same T as the dipolar spin icecorrelations appear in the spin flip channel. These experimental observationshave been well reproduced by our Monte Carlo simulations.



Author: L. J. Chang, Y. Su, Y. -J. Kao, Y. Z. Chou, R. Mittal, H. Schneider, Th. Brueckel, G. Balakrishnan, M. R. Lees

Source: https://arxiv.org/







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