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E circle times e Jahn-Teller effect in C-70(3-) systems
Tian, L; Yi, YS; Wang, CL; Su, ZB; Tian, L , BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA.
1997
发表期刊INTERNATIONAL JOURNAL OF MODERN PHYSICS B
ISSN0217-9792
卷号11期号:16页码:1969-1978
摘要The electron-phonon interaction in C-70 anions is studied by making use of a lattice We find there exists a Jahn-Teller effect in C-70(3-) system, due to an extra electron being doped to the double degenerate E-1 '' state. As a result of this effect, the original D-5h symmetry of the ground state becomes unstable, which causes distortion of the lattice configuration. The only symmetry maintained in the final state of the relaxation is the x-y plane reflection symmetry. We further find that besides the Jahn-Teller active A(1)', A(2)' E-2' modes, the non-Jahn-Teller active E-1' vibrations also contribute to the relaxation process. The E-1' components come from the nonlinear effect and are two or three orders smaller than those of the Jahn-Teller active modes. We suggest that the C-70(3-) molecule is a promising Berry Phase candidate in this effective E x e Jahn-Teller system.
部门归属CHINESE ACAD SCI,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; CHINA CTR ADV SCI & TECHNOL,WORLD LAB,BEIJING 100080,PEOPLES R CHINA
关键词C70 Clusters C60 Fullerenes Spectra Raman Model
学科领域Physics
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收录类别SCI
WOS记录号WOS:A1997XH51000007
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12458
专题理论物理所SCI论文
通讯作者Tian, L , BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA.
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Tian, L,Yi, YS,Wang, CL,et al. E circle times e Jahn-Teller effect in C-70(3-) systems[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B,1997,11(16):1969-1978.
APA Tian, L,Yi, YS,Wang, CL,Su, ZB,&Tian, L , BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA..(1997).E circle times e Jahn-Teller effect in C-70(3-) systems.INTERNATIONAL JOURNAL OF MODERN PHYSICS B,11(16),1969-1978.
MLA Tian, L,et al."E circle times e Jahn-Teller effect in C-70(3-) systems".INTERNATIONAL JOURNAL OF MODERN PHYSICS B 11.16(1997):1969-1978.
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