Structural, magnetic, and spectroscopic magneto-optical properties aspects of Pt-Co multilayers with intentionally alloyed layers
Abstract
Polycrystalline Pt-Co multilayers with intentionally alloyed layers were grown by e-beam evaporation on polyimide, Si, and glass substrates. X-ray diffraction spectra show that the multilayered structure of the samples degrades as compared to conventional Pt-Co multilayers. This degradation depends on the compositional variation of the intentionally alloyed layers. Magnetometry measurements reveal enhanced magnetization values for all samples, exceeding even by 90% the one of bulk Co, at a temperature of 10 K. This is attributed to both Pt-induced and enhanced Co magnetic moments, according to x-ray magnetic circular dichroism experiments. Spectroscopic magneto-optic measurements reveal large negative polar Kerr rotation maxima at photon energies between 4 and 4.4 eV due to the intense magneto-optic response of spin-polarized Pt.
- Publication:
-
Journal of Applied Physics
- Pub Date:
- December 2003
- DOI:
- 10.1063/1.1629156
- Bibcode:
- 2003JAP....94.7662P
- Keywords:
-
- 75.70.Cn;
- 68.65.Ac;
- 78.20.Ls;
- 75.30.Cr;
- 75.60.Ej;
- 78.67.Pt;
- Magnetic properties of interfaces;
- Multilayers;
- Magnetooptical effects;
- Saturation moments and magnetic susceptibilities;
- Magnetization curves hysteresis Barkhausen and related effects;
- Multilayers;
- superlattices