ORIGIN OF THE MAGNETOOPTICAL PROPERTIES OF IRON GARNETS / MOSKVIN AS,ZENKOV AV,YURYEVA EI,GUBANOV VA // PHYSICA B. - 1991. - V. 168, l. 3. - P. 187-196.

ISSN/EISSN:

0921-4526 / нет данных

Type:

Article

Abstract:

The analysis of experimental optical and magneto-optical spectra of iron garnets R3Fe5O12 shows that all peculiarities of these spectra in a wide range, 2-6 eV, can be explained by means of oxygen-to-iron charge-transfer (CT) transitions in octahedral FeO6(9-) complexes and tetrahedral FeO4(5-) complexes, being the main magneto-optical centres in iron garnets. The values of effective orbital Lande factors and spin-orbit coupling constants for CT states in octahedral and tetrahedral complexes are obtained. From the standpoint of the decisive role of CT transitions, using theoretical values of the above-mentioned parameters, a microscopic model calculation is carried out of the contributions to the Faraday rotation of yttrium iron garnet, which are proportional to the magnetizations of a- and d-iron sublattices and to the external magnetic field. Results of the model calculation are in good agreement with experimental data.

Author keywords:

FERRITE-GARNETS; ABSORPTION; EXCHANGE; FE3+

DOI:

10.1016/0921-4526(91)90670-A

Web of Science ID:

ISI:A1991FK65000006

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAR
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Keywords-Plus	FERRITE-GARNETS; ABSORPTION; EXCHANGE; FE3+
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Number-of-Cited-References	27
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	7
Journal-ISO	Physica B
Doc-Delivery-Number	FK650