Journal article
Spin Waves and Quantum Criticality in the Frustrated XY Pyrochlore Antiferromagnet Er2Ti2O7
Abstract
We report detailed measurements of the low temperature magnetic phase diagram of Er2Ti2O7. Heat capacity and time-of-flight neutron scattering studies of single crystals reveal unconventional low-energy states. Er3+ magnetic ions reside on a pyrochlore lattice in Er2Ti2O7, where local XY anisotropy and antiferromagnetic interactions give rise to a unique frustrated system. In zero field, the ground state exhibits coexisting short and long-range …
Authors
Ruff JPC; Clancy JP; Bourque A; White MA; Ramazanoglu M; Gardner JS; Qiu Y; Copley JRD; Johnson MB; Dabkowska HA
Journal
Physical Review Letters, Vol. 101, No. 14,
Publisher
American Physical Society (APS)
Publication Date
October 3, 2008
DOI
10.1103/physrevlett.101.147205
ISSN
0031-9007