Bose-glass phases in disordered quantum magnets.
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.
Nohadani
Omid
O
Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484, USA.
Wessel
Stefan
S
Haas
Stephan
S