Ordering in Heisenberg Spin Glasses

Details Ordering in Heisenberg Spin Glasses Ordering in Heisenberg Spin Glasses

2001-11-08

arxiv.org/abs/cond-mat/0111129v2

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages 4 figures. Revised version accepted by PRL

Scientific paper

10.1103/PhysRevLett.88.207206

For five different Heisenberg spin glass systems, torque experiments were performed in applied magnetic fields up to $4 T$. The Dzyaloshinski-Moriya random anisotropy strengths, the in-field torque onset temperatures, and the torque relaxation were measured. Critical exponents were estimated independently using a standard protocol. The data are strong evidence for a true spin glass ordered state which survives under high applied magnetic fields; they can be interpreted consistently in terms of a chiral ordering model with replica symmetry breaking as proposed by Kawamura and coworkers.

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