Eur. Phys. J. B (2013) 86: 416
https://doi.org/10.1140/epjb/e2013-40404-9

Regular Article

Low-temperature magnetisation process in the cubic pyrochlore quantum antiferromagnet, Er₂Ti₂O₇

University of Warwick, Department of Physics, Coventry, CV4 7AL, UK

^a e-mail: O.Petrenko@warwick.ac.uk

Received: 16 April 2013
Received in final form: 9 August 2013
Published online: 7 October 2013

Abstract

We report low-temperature susceptibility and magnetisation data for the cubic pyrochlore Er₂Ti₂O₇. By performing the measurements on single crystals we are able to establish the degree of magnetic anisotropy present in this compound and to determine the critical values for magnetic field induced transitions below the magnetic ordering temperature of 1.2 K. We also present a magnetic H-T phase diagram of this quantum XY antiferromagnet for different directions of an applied field.