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Positron annihilation studies of rare-earth mixed valence compounds

✍ Scribed by K P Gopinathan; C S Sundar; B Viswanathan; A Bharathi


Book ID
112872502
Publisher
Springer-Verlag
Year
1980
Tongue
English
Weight
469 KB
Volume
2
Category
Article
ISSN
0250-4707

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πŸ“œ SIMILAR VOLUMES


Phonon bound states in the mixed valence
✍ Hisao Jichu; Kyuya Baba; Tamifusa Matsuura; Yoshihiro Kuroda; A.D.S. Nagi πŸ“‚ Article πŸ“… 1985 πŸ› Elsevier Science 🌐 English βš– 283 KB

We show the possibility of the formation of two-phonon bound states which give rise to a localized phonon mode like the one discovered recently in the compound Sm0.75Y0.25 S. A crucial point in our model is to take account of an indirect two-phonon interaction due to local lattice-distortions around