TY - JOUR
T1 - The Spin Wave Theory in Antiferromagnetic Heisenberg Model on Face Centered Cubic Lattice
AU - Oguchi, Takehiko
AU - Nishimori, Hidetoshi
AU - Taguchi, Yoshihiro
PY - 1985/1/1
Y1 - 1985/1/1
N2 - The classical ground states of face centered cubic lattice with nearest neighbor antiferromagnetic Heisenberg interactions are shown to have continuous degeneracy. The spin wave theory removes the degeneracy and determines the ground state, in which the energy Eg and spin reduction are calculated. Eg is also obtained by calculating the lowest energy of finite size systems and extrapolating to infinite lattice. Both results are in fairly good agreement with each other. Finally it is concluded that the sublattice long range order exists.
AB - The classical ground states of face centered cubic lattice with nearest neighbor antiferromagnetic Heisenberg interactions are shown to have continuous degeneracy. The spin wave theory removes the degeneracy and determines the ground state, in which the energy Eg and spin reduction are calculated. Eg is also obtained by calculating the lowest energy of finite size systems and extrapolating to infinite lattice. Both results are in fairly good agreement with each other. Finally it is concluded that the sublattice long range order exists.
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U2 - 10.1143/JPSJ.54.4494
DO - 10.1143/JPSJ.54.4494
M3 - Article
AN - SCOPUS:0022248411
SN - 0031-9015
VL - 54
SP - 4494
EP - 4497
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 12
ER -