Schwinger-boson approach to anisotropy ferrimagnetic chain with bond alternation

Schwinger-boson approach to anisotropy ferrimagnetic chain with bond alternation

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摘要 We use the Schwinger-boson approach to study the anisotropy ferrimagnetic spin-（1/2,1） chain with bond alternation.Based on the effect of bond alternation δ,we obtain energy gap,free energy,and specific heat,respectively.The specific heat with larger bond alternation（δ 〉 0.7） displays a peak at low temperature.Based on the effect of XXZ anisotropy parameter Δ,we present excited spectrums,free energy,and specific heat,respectively. We use the Schwinger-boson approach to study the anisotropy ferrimagnetic spin-（1/2,1） chain with bond alternation.Based on the effect of bond alternation δ,we obtain energy gap,free energy,and specific heat,respectively.The specific heat with larger bond alternation（δ 〉 0.7） displays a peak at low temperature.Based on the effect of XXZ anisotropy parameter Δ,we present excited spectrums,free energy,and specific heat,respectively.

作者李殷翔陈斌

机构地区 Business School Tin Ka-Ping College of Science.University of Shanghai for Science and Technology

出处《Chinese Physics B》 SCIE EI CAS CSCD 2015年第2期409-413,共5页 中国物理B（英文版）

基金 supported by the National Natural Science Foundation of China(Grant No.10774035) the Qianjiang RenCai Program of Zhejiang Province,China(Grant No.2007R0010)

关键词 Schwinger-boson approach bond alternation XXZ anisotropy ferrimagnetic spin chain Schwinger-boson approach, bond alternation, XXZ anisotropy, ferrimagnetic spin chain

分类号 O572.2 [理学—粒子物理与原子核物理] P631.443 [天文地球—地质矿产勘探]

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Chinese Physics B

2015年第2期

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Schwinger-boson approach to anisotropy ferrimagnetic chain with bond alternation

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