Quantum fluctuations in easy-plane spin-one ferromagnet

K. K. Pan; Y. L. Wang

doi:10.1063/1.352713

Quantum fluctuations in easy-plane spin-one ferromagnet

K. K. Pan^*, Y. L. Wang

^*Corresponding author for this work

Florida State University

Research output: Contribution to journal › Journal Article › peer-review

4 Scopus citations

Abstract

The magnetic properties of easy-plane spin-one Heisenberg ferromagnet, H=D∑_i(S_i^x)² - J∑_(i,j)S_i·S_j- h∑_iSi^z, are investigated using the linked cluster series expansion. The results of the linked cluster series expansion method cover the whole range of temperatures, both magnetically ordered and disordered phases. The order parameter is included in correlations of spin fluctuation and solved self-consistently to high orders. The magnetization as a function of temperature for a given value of easy-plane anisotropy is shown. The observed values of magnetization from the linked cluster series expansion are appreciably depressed from their mean-field approximation values due to the quantum and thermal fluctuations. The effects of the quantum fluctuation on the magnetic ordering in three-dimensional (3D) systems are discussed.

Original language	English
Pages (from-to)	6099-6101
Number of pages	3
Journal	Journal of Applied Physics
Volume	73
Issue number	10
DOIs	https://doi.org/10.1063/1.352713
State	Published - 1993
Externally published	Yes

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title = "Quantum fluctuations in easy-plane spin-one ferromagnet",

abstract = "The magnetic properties of easy-plane spin-one Heisenberg ferromagnet, H=D∑i(Six)2 - J∑(i,j)Si·Sj- h∑iSiz, are investigated using the linked cluster series expansion. The results of the linked cluster series expansion method cover the whole range of temperatures, both magnetically ordered and disordered phases. The order parameter is included in correlations of spin fluctuation and solved self-consistently to high orders. The magnetization as a function of temperature for a given value of easy-plane anisotropy is shown. The observed values of magnetization from the linked cluster series expansion are appreciably depressed from their mean-field approximation values due to the quantum and thermal fluctuations. The effects of the quantum fluctuation on the magnetic ordering in three-dimensional (3D) systems are discussed.",

author = "Pan, {K. K.} and Wang, {Y. L.}",

year = "1993",

doi = "10.1063/1.352713",

language = "英语",

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publisher = "American Institute of Physics",

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TY - JOUR

T1 - Quantum fluctuations in easy-plane spin-one ferromagnet

AU - Pan, K. K.

AU - Wang, Y. L.

PY - 1993

Y1 - 1993

N2 - The magnetic properties of easy-plane spin-one Heisenberg ferromagnet, H=D∑i(Six)2 - J∑(i,j)Si·Sj- h∑iSiz, are investigated using the linked cluster series expansion. The results of the linked cluster series expansion method cover the whole range of temperatures, both magnetically ordered and disordered phases. The order parameter is included in correlations of spin fluctuation and solved self-consistently to high orders. The magnetization as a function of temperature for a given value of easy-plane anisotropy is shown. The observed values of magnetization from the linked cluster series expansion are appreciably depressed from their mean-field approximation values due to the quantum and thermal fluctuations. The effects of the quantum fluctuation on the magnetic ordering in three-dimensional (3D) systems are discussed.

AB - The magnetic properties of easy-plane spin-one Heisenberg ferromagnet, H=D∑i(Six)2 - J∑(i,j)Si·Sj- h∑iSiz, are investigated using the linked cluster series expansion. The results of the linked cluster series expansion method cover the whole range of temperatures, both magnetically ordered and disordered phases. The order parameter is included in correlations of spin fluctuation and solved self-consistently to high orders. The magnetization as a function of temperature for a given value of easy-plane anisotropy is shown. The observed values of magnetization from the linked cluster series expansion are appreciably depressed from their mean-field approximation values due to the quantum and thermal fluctuations. The effects of the quantum fluctuation on the magnetic ordering in three-dimensional (3D) systems are discussed.

UR - http://www.scopus.com/inward/record.url?scp=0038976339&partnerID=8YFLogxK

U2 - 10.1063/1.352713

DO - 10.1063/1.352713

M3 - 文章

AN - SCOPUS:0038976339

SN - 0021-8979

VL - 73

SP - 6099

EP - 6101

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 10

ER -

Quantum fluctuations in easy-plane spin-one ferromagnet

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