Tunneling spectroscopy in AlNiCo decagonal quasicrystals

被引：0
|
作者：
Li, GH
He, HF
Wang, YP
Lu, L
Li, SL
Jing, XN
Zhang, DL
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
[2] Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China
[3] Chinese Acad Sci, Lab Ultra Low Temp Phys, Cryogen Lab, Beijing 100080, Peoples R China
来源：
PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 06期
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Tunneling spectroscopy of Al73Ni17Co10 decagonal single quasicrystals has been measured at ultralow temperatures. In addition to the wide pseudogap observed in previous photoemission experiments. very rich fine structures in the density of states around the Fermi energy were discovered. The fine structures strongly depend on the applied magnetic field and disappear above similar to 4 T. The zero-bias resistance of the junction varies with magnetic fields in a complicated way, which is suggested to be related to the hierarchy structure of quasicrystals. A puzzling hysteretic phenomenon was observed in some bias ranges in zero magnetic field, the origin of which needs to be clarified in the future. [S0031-9007(99)08419-7].
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页码：1229 / 1232
页数：4
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