Nohadani Omid, Wessel Stefan, Haas Stephan
Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484, USA.
Phys Rev Lett. 2005 Nov 25;95(22):227201. doi: 10.1103/PhysRevLett.95.227201. Epub 2005 Nov 21.
In disordered spin systems with antiferromagnetic Heisenberg exchange, transitions into and out of a magnetic-field-induced ordered phase pass through unique regimes. Using quantum Monte Carlo simulations to study the zero-temperature behavior, these intermediate regions are determined to be Bose-glass phases. The localization of field-induced triplons causes a finite compressibility and, hence, glassiness in the disordered phase.
