Analytical calculation of dielectric permittivity tensor from magneto-optical ellipsometry measurements : научное издание

Описание

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1088/1751-8121/abfe72

Ключевые слова: ellipsometry, dielectric permittivity tensor, ferromagnetics, transverse magneto-optical kerr effect, trans-verse magneto-optical kerr effect

Аннотация: Magneto-optical ellipsometry combines ellipsometry and magneto-optical Kerr effect measurements which are two powerful techniques. The main difficulty is usually in data processing as a number of parameters should be extracted from measured ellipsometric (psi, Delta) and magneto-ellipsometric (delta psi, delta Delta) parameters. StПоказать полностьюandard procedure of solving magneto-ellipsometry equations involves numerical calculations. In this paper we show that it is possible to find out all elements of dielectric permittivity tensor without numerical calculation methods. It means that the inverse problem of magneto-optical ellipsometry can be solved analytically in the case of expansion of magneto-ellipsometric parameters delta psi and delta Delta with respect to two small parameters. We present a full set of mathematical expressions that enable us to calculate complex refraction index and complex magneto-optical parameter of a sample from magneto-optical ellipsometry measurements, thereby obtaining diagonal and off-diagonal complex elements of dielectric permittivity tensor. This analytical approach can be used in case of the contribution from magnetism into reflection coefficients being small. Magneto-optical ellipsometry combines ellipsometry and magneto-optical Kerr effect measurements which are two powerful techniques. The main difficulty is usually in data processing as a number of parameters should be extracted from measured ellipsometric

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Издание

Журнал: JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL

Выпуск журнала: Vol. 54, Is. 29

Номера страниц: 295201

ISSN журнала: 17518113

Место издания: BRISTOL

Издатель: IOP PUBLISHING LTD

Авторы

  • Maximova Olga (Kirensky Inst Phys SB RAS, 50-38 Akademgorodok, Krasnoyarsk 660036, Russia; Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
  • Ovchinnikov Sergei (Kirensky Inst Phys SB RAS, 50-38 Akademgorodok, Krasnoyarsk 660036, Russia; Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
  • Lyaschenko Sergey (Kirensky Inst Phys SB RAS, 50-38 Akademgorodok, Krasnoyarsk 660036, Russia)

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