TY - JOUR
T1 - Variational coupled-cluster study of plasmonlike excitations in quantum antiferromagnets
AU - Xian, Y.
PY - 2006
Y1 - 2006
N2 - We study plasmonlike excitations in quantum antiferromagnets by the recently proposed variational coupled-cluster method. Within our approximation, we find that these spin-zero excitations have a nonzero energy gap in a cubic lattice and are gapless in a square lattice, similar to the plasmons in quantum electron gases. © 2006 The American Physical Society.
AB - We study plasmonlike excitations in quantum antiferromagnets by the recently proposed variational coupled-cluster method. Within our approximation, we find that these spin-zero excitations have a nonzero energy gap in a cubic lattice and are gapless in a square lattice, similar to the plasmons in quantum electron gases. © 2006 The American Physical Society.
U2 - 10.1103/PhysRevB.74.212401
DO - 10.1103/PhysRevB.74.212401
M3 - Article
SN - 1098-0121
VL - 74
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 21
M1 - 212401
ER -