Spin-Wave Resonance in Ge : Mn Thin Films with Percolation Magnetic Ordering

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...

Full description

Saved in:
Bibliographic Details
Published in:Physics of the solid state 2018-05, Vol.60 (5), p.921-924
Main Authors: Dmitriev, A. I., Dmitrieva, M. S., Ziborov, G. G.
Format: Article
Language:English
Subjects:
CONCENTRATION RATIO
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
CORRELATIONS
CURIE POINT
Curie temperature
EXCITATION
Ferromagnetism
GERMANIUM
Magnetic resonance
Magnetism
MAGNETIZATION
Magnons
MANGANESE
Percolation theory
Physics
Physics and Astronomy
RESONANCE
Solid State Physics
SPIN WAVES
THIN FILMS
WAVE PROPAGATION
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783418050062