Fermi surface nesting and charge-density wave formation in rare-earth tritellurides

被引：113

作者：

Laverock, J

Dugdale, SB

Major, Z

Alam, MA

Ru, N

Fisher, IR

Santi, G

Bruno, E

机构：

[1] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[2] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA

[3] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

[4] Univ Aarhus, Dept Phys & Astron, DK-8000 Aarhus, Denmark

[5] Univ Messina, Dept Phys, I-98166 Messina, Italy

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevB.71.085114

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Fermi surface of rare-earth tritellurides (RTe3) is investigated in terms of the nesting-driven charge-density wave formation using positron annihilation and first-principles linear muffin-tin orbital calculations. Fermi surface nesting is revealed as a strong candidate for driving charge-density wave formation in these compounds. The nesting vector obtained from positron annihilation experiments on GdTe3 is determined to be q=(0.28 +/- 0.02,0,0)a* (a*=2 pi/a), in excellent agreement with previous experimental and theoretical studies.

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页数：5

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