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Analytical results for a hole in an antiferromagnet
Li, YM; dAmbrumenil, N; Yu, L; Su, ZB; Li, YM , UNIV WARWICK,DEPT PHYS,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND.
1996
发表期刊PHYSICAL REVIEW B
ISSN0163-1829
卷号53期号:22页码:14717-14720
摘要The Green's function for a hole moving in an antiferromagnet is derived analytically in the long-wavelength limit. We find that the infrared divergence is eliminated in two and higher dimensions so that the quasiparticle weight is finite. Our results also suggest that the hole motion is polaronic in nature with a bandwidth proportional to t(2)/J exp[-c(t/J)(2)] (c is a constant) for J/t greater than or equal to 0.5. The connection of the long-wavelength approximation to the first-order approximation in the cumulant expansion is also clarified.
部门归属QUFU NORMAL UNIV,DEPT PHYS,SHANDONG,PEOPLES R CHINA; INT CTR THEORET PHYS,I-34100 TRIESTE,ITALY; ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
关键词2-dimensional Quantum Antiferromagnet T-j Model Single-hole Spectral-function Hubbard Antiferromagnet Dynamic Properties Motion State
学科领域Physics
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收录类别SCI
WOS记录号WOS:A1996UR04700006
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12628
专题理论物理所1978-2010年知识产出
通讯作者Li, YM , UNIV WARWICK,DEPT PHYS,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND.
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Li, YM,dAmbrumenil, N,Yu, L,et al. Analytical results for a hole in an antiferromagnet[J]. PHYSICAL REVIEW B,1996,53(22):14717-14720.
APA Li, YM,dAmbrumenil, N,Yu, L,Su, ZB,&Li, YM , UNIV WARWICK,DEPT PHYS,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND..(1996).Analytical results for a hole in an antiferromagnet.PHYSICAL REVIEW B,53(22),14717-14720.
MLA Li, YM,et al."Analytical results for a hole in an antiferromagnet".PHYSICAL REVIEW B 53.22(1996):14717-14720.
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