Published October 1, 2020 | Version v1
Journal article Metadata-only

Tuning of the Magnetic Damping Parameter by Varying Cr Composition in Fe1–xCrx Alloy

Creators

  • 1. Jiangsu Provincial Key Laboratory of Nanotechnology, School of Electronics Science and Engineering, Nanjing University, Nanjing 210093 (China)
  • 2. York-Nanjing International Joint Center in Spintronics, Departments of Electronics and Physics, University of York, York YO10 5DD (United Kingdom)
  • 3. Department of Physics, Nanjing University, Nanjing 210093 (China)
  • 4. Key Laboratory of Spintronics Materials, Devices and Systems of Zhejiang Province, 9 Lixin Road, Linan, Hangzhou 311300 (China)

Description

We investigate the magnetic damping parameter of Fe1 – xCrx thin films using the time-resolved magneto-optical Kerr effect technique. It is demonstrated that the overall effective damping parameter is enhanced with the increasing Cr concentration. The effective damping at high field α 0 is found to be significantly enhanced when increasing the Cr concentration with the α 0 = 0.159 in the Fe45Cr55 enhanced by 562% compared with that of α 0 = 0.024 in the pure Fe film. This study provides a new approach of controlling the effective damping parameter with a desired magnitude via varying Cr composition. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/0256-307X/37/10/107502

Additional details

Identifiers

DOI
10.1088/0256-307X/37/10/107502;

Publishing Information

Journal Title
Chinese Physics Letters
Journal Volume
37
Journal Issue
10
Journal Page Range
[6 p.]
ISSN
0256-307X
CODEN
CPLEEU

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
53004871
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BINARY ALLOY SYSTEMS; CHROMIUM COMPOUNDS; COMPARATIVE EVALUATIONS; CONCENTRATION RATIO; IRON COMPOUNDS; KERR EFFECT; THIN FILMS; TIME RESOLUTION
Descriptors DEC
ALLOY SYSTEMS; DIELECTRIC PROPERTIES; DIMENSIONLESS NUMBERS; ELECTRICAL PROPERTIES; EVALUATION; FILMS; PHYSICAL PROPERTIES; RESOLUTION; TIMING PROPERTIES; TRANSITION ELEMENT COMPOUNDS