@article{10902/28560,
year = {2010},
month = {6},
url = {https://hdl.handle.net/10902/28560},
abstract = {Here we present a detailed study of the spinel CdEr2Se4 and show it to be a new instance of spin ice, the first one in an erbium material and the first one in a spinel. Definitive experimental evidence comes from the temperature dependence of the magnetic entropy, which shows an excellent agreement with the predicted behavior for a spin ice state. Crystal field calculations demonstrate that the change in the local environment from that of the titanates completely alters the rare-earth anisotropy giving rise, in the case of Er3+, to the required Ising anisotropy, when Er2Ti2O7 behaves as an XY antiferromagnet. This finding opens up the possibility of new exotic ground states within the CdR2Se4 and CdR2Se4 families.},
organization = {The authors would like to acknowledge L. Jaubert for useful discussions as well as H. Luetkens and C. Baines for
technical assistance during the  SR measurements at PSI. Part of this work was financially supported by the Spanish Ministerio de Educación (projects MAT2007-66737-C02-01 and MAT2008-06542-C04).},
publisher = {American Physical Society},
publisher = {Physical Review Letters, 2010, 104(24), 247203},
title = {CdEr2Se4: a new erbium spin ice system in a spinel structure},
author = {Lago, J. and Ziivkovic, I. and Malkin, B. Z. and Rodríguez Fernández, Jesús and Ghigna, P. and Dalmas de Réotier, P. and Yaouanc, A. and Rojo, T.},
}