Спин-волновой резонанс в тонких пленках Ge : Mn с перколяционным магнитным упорядочением | Zendy

А.И. Дмитриев | Zendy; М.С. Дмитриева | Zendy; Г.Г. Зиборов | Zendy

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Спин-волновой резонанс в тонких пленках Ge : Mn с перколяционным магнитным упорядочением

Author(s) -

А.И. Дмитриев,

М.С. Дмитриева,

Г.Г. Зиборов

Publication year - 2018

Publication title -

физика твердого тела

Language(s) - English

Resource type - Journals

eISSN - 1726-7498

pISSN - 0367-3294

DOI - 10.21883/ftt.2018.05.45787.326

Subject(s) - curie temperature , condensed matter physics , percolation (cognitive psychology) , excitation , percolation theory , manganese , spin wave , percolation threshold , curie , rigidity (electromagnetism) , thin film , materials science , chemistry , physics , nanotechnology , electrical resistivity and conductivity , ferromagnetism , conductivity , quantum mechanics , metallurgy , composite material , neuroscience , biology

The mechanism of excitation and propagation of spin waves in Ge: Mn thin films with different nominal manganese concentrations (2, 4, and 8 at % Mn) with percolation magnetic ordering is explored. Concentration dependencies of Curie temperature T _C( n ) and spin wave rigidity D ( n ) are determined, which enables to find the index of correlation distance. An exotic percolation magnetic state of samples of Ge: Mn thin films is confirmed by rectifying experimental dependences D ( n ) and D / T _C( n ) in coordinates accepted in the percolation theory.

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