Volume 115, Number 3, August 2016
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||09 September 2016|
Magnetic anisotropy peculiarities of high-temperature ferromagnetic MnxSi1−x (x ≈ 0.5) alloy films
1 P.L. Kapitza Institute for Physical Problems RAS - Kosygina St. 2, 119334 Moscow, Russia
2 National Research Centre “Kurchatov Institute” - Kurchatov Sq. 1, 123182 Moscow, Russia
3 Kotel'nikov Institute of Radio Engineering and Electronics RAS - 141190 Fryazino, Moscow region, Russia
4 Institute on Laser and Information Technologies RAS - Svyatoozerskaya St. 1, 140700 Shatura, Moscow region, Russia
5 Prokhorov General Physics Institute RAS - Vavilov St. 38, 119991 Moscow, Russia
6 Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research Bautzner Landstrasse 400, 01328 Dresden, Germany
Received: 15 April 2016
Accepted: 19 August 2016
Thin films of MnxSi1−x alloys with different Mn concentration grown by the pulsed-laser deposition (PLD) method onto the Al2O3 (0001) substrate were investigated in the temperature range 4–300 K using ferromagnetic resonance (FMR) measurements in the wide range of frequencies and magnetic fields . For samples with , FMR data show clear evidence of ferromagnetism (FM) with high Curie temperatures . These samples demonstrate the complex and unusual character of magnetic anisotropy described in the frame of phenomenological model as a combination of the essential second-order easy-plane anisotropy contribution and the additional fourth-order anisotropy contribution with the easy direction normal to the film plane. We explain the obtained results by a polycrystalline (mosaic) structure of the films caused by the film-substrate lattice mismatch.
PACS: 75.70.-i – Magnetic properties of thin films, surfaces, and interfaces / 75.30.Gw – Magnetic anisotropy / 76.50.+g – Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance
© EPLA, 2016
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.