Infrared study of crystal-field excitations in NdBa2Cu3O6

被引：23

作者：

Martin, AA

Ruf, T

Cardona, M

Jandl, S

Barba, D

Nekvasil, V

Divis, M

Wolf, T

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[2] Univ Sherbrooke, Dept Phys, Ctr Rech Phys Solide, Sherbrooke, PQ J1K 2R1, Canada

[3] Acad Sci Czech Republ, Inst Phys, CR-16200 Prague 6, Czech Republic

[4] Charles Univ, Dept Met Phys, CR-12116 Prague 2, Czech Republic

[5] Forschungszentrum Karlsruhe, Inst Tech Phys, D-76021 Karlsruhe, Germany

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 09期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1103/PhysRevB.59.6528

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have observed absorption bands corresponding to Nd3+ crystal-field (CF) excitations in NdBa2Cu3O6 by infrared spectroscopy, The observed absorption peaks are assigned to different transitions between CF levels of the I-4(9/2) ground slate to the excited multiplets I-4(11/2),I-4(13/2), and I-4(15/2) Of Nd3+ ions on the regular rare-earth sites. From fits to these levels, we have calculated a more precise set of CF parameters compared to previous results obtained on the basis of the ground state multiplet only. Crystal-field transitions from Nd3+ ions on the Ba site have also been observed. [S0163-1829(99)07009-5].

引用

页码：6528 / 6533

页数：6

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