An intermediate state between the kagome-ice and the fully polarized state in Dy$_2$Ti$_2$O$_7$

S. A. Grigera; R. Borzi; D. G. Slobinsky; A. S. Gibbs; R. Higashinaka; Y. Maeno; T. S. Grigera

doi:10.4279/pip.070009

Authors

S. A. Grigera School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS, UK Instituto de F?sica de L?quidos y Sistemas Biologicos, UNLP-CONICET, La Plata 1900, Argentina
R. Borzi Instituto de Investigaciones Fisicoquimicas Teoricas y Aplicadas UNLP-CONICET and Departamento de Fisica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 1900 La Plata, Argentina
D. G. Slobinsky School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS, UK
A. S. Gibbs School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS, UK
R. Higashinaka Graduate School of Science, Tokyo Metropolitan Univer- sity, Hachioji, Tokyo 192-0397, Japan.
Y. Maeno Department of Physics, Kyoto University, Kyoto 606- 8502, Japan.
T. S. Grigera Instituto de Investigaciones Fisicoquimicas Teoricas y Aplicadas UNLP-CONICET and Departamento de Fisica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 1900 La Plata, Argentina

DOI:

https://doi.org/10.4279/pip.070009

Keywords:

magnetism, frustrated magnets, spin-ice

Abstract

Dy$_2$Ti$_2$O$_7$ is at present the cleanest example of a spin-ice material. Previous theoretical and experimental work on the first-order transition between the kagome-ice and the fully polarized state has been taken as a validation for the dipolar spin-ice model. Here we investigate in further depth this phase transition using ac-susceptibility and dc-magnetization, and compare this results with Monte-Carlo simulations and previous magnetization and specific heat measurements. We find signatures of an intermediate state between the kagome-ice and full polarization. This signatures are absent in current theoretical models used to describe spin-ice materials.

Received: 17 May 2015, Accepted: 12 June 2015; Edited by: A. Vindigni; Reviewed by: M. Perfetti, Dipartimento di Chimica, Universitá di Firenze, Italy; DOI: http://dx.doi.org/10.4279/PIP.070009

Cite as: S A Grigera, R A Borzi, D G Slobinsky, A S Gibbs, R Higashinaka, Y Maeno, T S Grigera, Papers in Physics 7, 070009 (2015)

This paper, by S A Grigera, R A Borzi, D G Slobinsky, A S Gibbs, R Higashinaka, Y Maeno, T S Grigera, is licensed under the Creative Commons Attribution License 3.0.