TY - JOUR
T1 - Spin-nematic order in the frustrated pyrochlore-lattice quantum rotor model
AU - Gregor, Karol
AU - Huse, David A.
AU - Sondhi, Shivaji Lal
PY - 2006
Y1 - 2006
N2 - As an example of ordering due to quantum fluctuations, we examine the nearest-neighbor antiferromagnetic quantum O (n) rotor model on the pyrochlore lattice. Classically, this system remains disordered even at zero temperature; we find that adding quantum fluctuations induces an ordered phase that survives to positive temperature, and we determine how its phase diagram scales with the coupling constant and the number of spin components. We demonstrate, using quantum Monte Carlo simulations, that this phase has long-range spin-nematic order, and that the phase transition into it appears to be first order.
AB - As an example of ordering due to quantum fluctuations, we examine the nearest-neighbor antiferromagnetic quantum O (n) rotor model on the pyrochlore lattice. Classically, this system remains disordered even at zero temperature; we find that adding quantum fluctuations induces an ordered phase that survives to positive temperature, and we determine how its phase diagram scales with the coupling constant and the number of spin components. We demonstrate, using quantum Monte Carlo simulations, that this phase has long-range spin-nematic order, and that the phase transition into it appears to be first order.
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U2 - 10.1103/PhysRevB.74.024425
DO - 10.1103/PhysRevB.74.024425
M3 - Article
AN - SCOPUS:33746391420
SN - 1098-0121
VL - 74
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 2
M1 - 024425
ER -