Magnetic correlations in spin ice Ho2-xYxTi2O7 as revealed by neutron polarization analysis - Condensed Matter > Strongly Correlated ElectronsReportar como inadecuado




Magnetic correlations in spin ice Ho2-xYxTi2O7 as revealed by neutron polarization analysis - Condensed Matter > Strongly Correlated Electrons - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

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.



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

Fuente: https://arxiv.org/







Documentos relacionados