Periodic Wave Solution and Its Stability in Antiferromagnet KCuF<suB>3</suB>

Chin. Phys. Lett.

1995, Vol. 12

Issue (2): 106-109 DOI:

Original Articles

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)

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LIU Wuming, ZHOU Benlian 1995 Chin. Phys. Lett. 12 106-109

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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.

Keywords: 75.10.Hk 75.50.Ee 79.90.+w

Published: 01 February 1995

PACS:	75.10.Hk	(Classical spin models)
	75.50.Ee	(Antiferromagnetics)
	79.90.+w

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1995/V12/I2/0106

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