Anomalous influence of an external magnetic field on the electron energy spectrum of ferromagnetic semiconductors with strong p,d-hybridization / Povzner A. A.,Volkov A. G.,Shumikhina K. A. // . - 2015. - V. 75, l. . - P. 348-355.

ISSN/EISSN:

1875-3892 / нет данных

Type:

Proceedings Paper

Abstract:

We investigate the influence of magnetic field on the optical conductivity and electron spectra of lanthanum manganites, which are used as magneto-optical switches. It has been shown that a narrow band of heavy fermions appears in the gap. The chemical potential is located in this band due to hole doping. For this reason, heavy fermions are responsible for the magnetism, optical properties and charge transfer. The scattering of heavy fermions by spin fluctuations and charge density fluctuations induced by them, lead to the Anderson localization. This effect determines the anomalous relationship between the magnetic and electron subsystems. The formulated model explains the observation and magnetorefractive magnetoresistive effects for identical values of temperatures and magnetic fields.

Author keywords:

Spin fluctuations; hybridization of electronic states; Anderson localization; magnetorefractive effect; collosal magnetoresistance effect TRANSPORT

DOI:

нет данных

Web of Science ID:

ISI:000381129300049

Соавторы в МНС:

Другие поля

Поле	Значение
Editor	Labarta, A
Booktitle	20TH INTERNATIONAL CONFERENCE ON MAGNETISM, ICM 2015
Series	Physics Procedia
Note	20th International Conference on Magnetism, Span Soc Magnetism, Barcelona, SPAIN, JUL 05-10, 2015
Organization	Barcelo Congress; Palau Congress Catalunya; Spanish Royal Soc Phys; Int Union Pure Appl Phys
Publisher	ELSEVIER SCIENCE BV
Address	SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Keywords-Plus	TRANSPORT
Research-Areas	Physics
Web-of-Science-Categories	Physics, Applied; Physics, Condensed Matter
Author-Email	a.a.povzner@urfu.ru agvolkov@yandex.ru
Number-of-Cited-References	8
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	1
Doc-Delivery-Number	BF4KG