THE SPIN WAVE THEORY OF A HEISENBERG FERROMAGNETIC SYSTEM WITH BIQUADRATIC EXCHANGE INTERACTION AT LOW TEMPERATURES

TAO RUI-BAO; PU FU-CHO

doi:10.7498/aps.29.635

Abstract
We presented here a theory of the Heisenberg ferromagnetic system with biquadratic exchange interaction at, low temperatures. In our theory, the kinematic and dynamic interactions are correctly included. The expansion for Sz in terms of temperature and the temperature dependence of spin wave spectrum are obtained ri-grously.
Authors and contacts
TAO RUI-BAO¹,

PU FU-CHO²

(1)复旦大学物理系; (2)中国科学院物理研究所
References

[1]

Cited By
[1]

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[9]	ZHONG JIAN. SPIN WAVE SPECTRUM IN HEISENBERG ANTIFERRO-MAGNETIC SUPERLATTICES. Acta Physica Sinica, 1990, 39(3): 486-490. doi: 10.7498/aps.39.486
[10]	WANG XUAN-ZHANG. THE GROUND STATE OF MIXED SPIN (S=1,1/2) SYSTEM OF THE LATTICE WITH THIRD NEAREST NEIGHBORS ANTIFERROMAGNETIC INTERACTION. Acta Physica Sinica, 1988, 37(10): 1707-1714. doi: 10.7498/aps.37.1707
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Vol. 29, Issue 5 - 1980-03-05

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THE SPIN WAVE THEORY OF A HEISENBERG FERROMAGNETIC SYSTEM WITH BIQUADRATIC EXCHANGE INTERACTION AT LOW TEMPERATURES

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THE SPIN WAVE THEORY OF A HEISENBERG FERROMAGNETIC SYSTEM WITH BIQUADRATIC EXCHANGE INTERACTION AT LOW TEMPERATURES

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