Periodic Wave Solution and Its Stability in Antiferromagnet KCuF3
LIU Wuming1, ZHOU Benlian
International Center for Materials Physics, Academia Sinica, Shenyang 110015,
and CCAST (World Laboratory), P. O. Box 8730, Beijing 100080
and Institute of Metal Research, Academia Sinica, Shenyang 110015
1Institute of Physics, Academia Sinica, Beijing 100080(Present address)
Periodic Wave Solution and Its Stability in Antiferromagnet KCuF3
LIU Wuming1;ZHOU Benlian
International Center for Materials Physics, Academia Sinica, Shenyang 110015,
and CCAST (World Laboratory), P. O. Box 8730, Beijing 100080
and Institute of Metal Research, Academia Sinica, Shenyang 110015
1Institute of Physics, Academia Sinica, Beijing 100080(Present address)
Abstract： Introducing the coherent state ansatz and the time-dependent variational principle, we obtain the two partial different equations of motion from Hamiltonian. Employing the method of multiple scales, we reduce these equations into the envelope function equation and find the amplitude function satisfied a nonlinear Schrödinger equation. We get the periodic wave solution and analyse its stability antiferromagnet KCuF3.
LIU Wuming;ZHOU Benlian. Periodic Wave Solution and Its Stability in Antiferromagnet KCuF3[J]. 中国物理快报, 1995, 12(2): 106-109.
LIU Wuming, ZHOU Benlian. Periodic Wave Solution and Its Stability in Antiferromagnet KCuF3. Chin. Phys. Lett., 1995, 12(2): 106-109.
1995, Vol. 12 
