Spin-Wave Resonance in Magnetic Semiconductor Thin Films - Experiment

• Authors: L. Maksymowicz , M. Lubecka , W. Powroźnik
• Languages of publication: EN

Abstracts

EN

Magnetic properties of polycrystalline thin films of chromium chalcogenide spinels (CdCr_{2}Se_{4} lightly doped with indium and CdCr_{2x}In_{2-2x}Se_{4}) were studied. The ferromagnetic (FMR) and spin-wave resonance (SWR) techniques were used to investigate the temperature dependences of both the spin-wave stiffness constant D and the saturation magnetization M_{s}. The resonance spectra were recorded in the temperature range extending from 4.2 K to 300 K. The influence of indium concentration on M_{s}(T) and D(T) was studied. It was shown that lightly doped samples (In/Cd < 1% at.) exhibited the ferromagnetic ordering with M_{s}(T) and D(T) being the linear functions of T^{3/2} and T^{5/2}, respectively. Higher concentration of indium produced the reentrant transition and spin-glass state of magnetic ordering in CdCr_{2x}In_{2-2x}Se_{4}. The temperature dependence of M_{s} was also found from the FMR data for these two magnetic phases.

Keywords

EN

73.60.Gx; 75.70.Ak

Discipline

• 75.70.Ak: Magnetic properties of monolayers and thin films

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1991
• Volume: 80
• Issue: 5
• Pages: 653-664

Dates

published

1991-11

received

1991-03-21

Contributors

author

L. Maksymowicz

• Institute of Electronics, Academy of Mining and Metallurgy, Al. Mickiewicza 30, Kraków, Poland

author

M. Lubecka

• Institute of Electronics, Academy of Mining and Metallurgy, Al. Mickiewicza 30, Kraków, Poland

author

W. Powroźnik

• Institute of Electronics, Academy of Mining and Metallurgy, Al. Mickiewicza 30, Kraków, Poland

Identifiers

DOI

10.12693/APhysPolA.80.653