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Role of spin in quasiparticle interference -: art. no. 196802

被引：154
作者：
Pascual, JI
Bihlmayer, G
Koroteev, YM
Rust, HP
Ceballos, G
Hansmann, M
Horn, K
Chulkov, EV
Blügel, S
Echenique, PM
Hofmann, P
机构：
[1] Free Univ Berlin, Inst Expt Phys, D-14195 Berlin, Germany
[2] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany
[3] DIPC, San Sebastian 20018, Spain
[4] Russian Acad Sci, Inst Strength Phys & Mat Sci, Tomsk 634021, Russia
[5] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany
[6] Univ Basque Country, Dept Fis Mat, San Sebastian 20080, Spain
[7] Univ Basque Country, Ctr Mixto CSIC, Fac Ciencias Quim, San Sebastian 20080, Spain
[8] Univ Aarhus, Inst Storage Ring Facil, DK-8000 Aarhus C, Denmark
来源：
PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 19期
关键词：
D O I：
10.1103/PhysRevLett.93.196802
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Quasiparticle interference patterns measured by scanning tunneling microscopy can be used to study the local electronic structure of metal surfaces and high-temperature superconductors. Here, we show that even in nonmagnetic systems the spin of the quasiparticles can have a profound effect on the interference patterns. On Bi(110), where the surface state bands are not spin degenerate, the patterns are not related to the dispersion of the electronic states in a simple way. In fact, the features which are expected for the spin-independent situation are absent and the observed interference patterns can be interpreted only by taking spin-conserving scattering events into account.
引用
收藏
页码：196802 / 1
页数：4
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