Abstract
We examine the magnetic excitation spectrum in the S=2 Heisenberg antiferromagnet CrCl2. Inelastic neutron scattering measurements on powder samples are able to determine the significant exchange interactions in this system. A large anisotropy gap is observed in the spectrum below the Néel temperature and the ratio of the two largest exchange constants is Jc/Jb=9.1±2.2. However, no sign of a gapped quantum spin liquid excitation was found in the paramagnetic phase.
Original language | English |
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Article number | 104413 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 88 |
Issue number | 10 |
DOIs | |
State | Published - Sep 16 2013 |