A fluctuation mechanism of electron transitions in magnetic semiconductors

Autor: O. V. Anoshina, A. G. Volkov, O. V. Podshivalova, K. A. Shumikhina, A. A. Povzner
Rok vydání: 2006
Předmět:
Zdroj: Russian Physics Journal. 49:1153-1158
ISSN: 1573-9228
1064-8887
DOI: 10.1007/s11182-006-0238-y
Popis: The role of hybridization effects in a system of highly correlated electrons is studied. It is shown that a narrow band of heavy fermions is formed within the hybridization gap due to strong scattering of d-electrons by spin fluctuations. The heavy-fermion states undergo the Anderson localization with increase in the spin and charge-density fluctuations. The electron-phase transformations into La0.65Ca0.35MnO3 are discussed on the basis of the proposed mechanism.
Databáze: OpenAIRE