Influence of Substrate Temperature on Magnetic and Structural Properties of RF Magnetron Sputtered Co-Cr Thin Films

• Authors: Jong-Sung Baek , Yark-Yeon Kim , Woo-Young Lim , Yurng-Dae Kim , Seong-Cho Yu
• Languages of publication: EN

Abstracts

EN

The present paper describes the substrate temperature T_{s} dependence on magnetic and structural properties of Co-21 at.% Cr thin films deposited on the Corning glass substrate by RF magnetron sputtering. The properties of the samples, such as saturation magnetization M_{s}, in-plane squareness ratio S_{∥}, effective magnetic anisotropy field H'_{k}, spectroscopic splitting factor g, and hcp (002) peak intensity I_{002}, were examined by vibrating sample magnetometer, Q-band (≈ 33.9 GHz) ferromagnetic resonance measurements and X-ray diffractometry. Specially, the presence of the various ferromagnetic constituents in Co-Cr thin films are examined by the ferromagnetic resonance studies. With increasing T_{s} from room temperature to 200°C, S_{∥} increases from 0.08 to 0.56 but H'_{k} decreases from 2530 Oe to -3900 Oe. Also I_{002} decreases with increasing T_{s}. It is summarized that the perpendicular magnetic anisotropy and c-axis orientation of Co-Cr films are improved at lower substrate temperature.

Keywords

EN

75.50.Ss

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 91
• Issue: 2
• Pages: 307-310

Dates

published

1997-02

Contributors

author

Jong-Sung Baek

• Dept. of Phys., Korea Univ., Chochiwon 339-700, South Korea

author

Yark-Yeon Kim

• Dept. of Phys., Korea Univ., Chochiwon 339-700, South Korea

author

Woo-Young Lim

• Dept. of Phys., Korea Univ., Chochiwon 339-700, South Korea

author

Yurng-Dae Kim

• Dept. of Sci. Edu., Chungbuk Nat'l Univ., Cheongju 360-763, South Korea

author

Seong-Cho Yu

• Dept. of Phys., Chungbuk Nat'l Univ., Cheongju 360-763, South Korea