Papers

Oct 15, 2004

Perturbative Calculation of the Spin-Wave Dispersion in a Disordered Double-Exchange Model

Journal of the Physical Society of Japan
  • Taeko Semba
  • ,
  • Takahiro Fukui

Volume
73
Number
10
First page
2646
Last page
2649
Language
English
Publishing type
Research paper (scientific journal)
DOI
10.1143/jpsj.73.2646
Publisher
Physical Society of Japan

We study the spin-wave dispersion of localized spins in a disordered double-exchange model using the perturbation theory with respect to the strength of the disorder potential. We calculate the dispersion up to the next-leading order, and extensively examine the case of one dimension. We show that in that case, disorder yields anomalous gap-like behavior at the Fermi wave number of the conduction electrons.

Link information
DOI
https://doi.org/10.1143/jpsj.73.2646
CiNii Articles
http://ci.nii.ac.jp/naid/110001979184
CiNii Books
http://ci.nii.ac.jp/ncid/AA00704814
URL
http://journals.jps.jp/doi/pdf/10.1143/JPSJ.73.2646
ID information
  • DOI : 10.1143/jpsj.73.2646
  • ISSN : 0031-9015
  • eISSN : 1347-4073
  • CiNii Articles ID : 110001979184
  • CiNii Books ID : AA00704814

Export
BibTeX RIS