Effect of substitutional defects on Kambersky damping in L10 magnetic materials

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Kambersky damping, representing the loss of magnetic energy from the electrons to the lattice through the spin orbit interaction, is calculated for L10 FePt, FePd, CoPt, and CoPd alloys versus chemical degree of order. When more substitutional defects exist in the alloys, damping is predicted to increase due to the increase of the spin-flip channels allowed by the broken symmetry. It is demonstrated that this corresponds to an enhanced density of states (DOS) at the Fermi level, owing to the rounding of the DOS with loss of long-range order. Both the damping and the DOS of the Co-based alloy are found to be less affected by the disorder. Pd-based alloys are predicted to have lower damping than Pt-based alloys, making them more suitable for high density spintronic applications.

Original languageEnglish (US)
Article number072404
JournalApplied Physics Letters
Volume106
Issue number7
DOIs
StatePublished - Feb 16 2015

Fingerprint

Dive into the research topics of 'Effect of substitutional defects on Kambersky damping in L1<sub>0</sub> magnetic materials'. Together they form a unique fingerprint.

Cite this