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Title: Effect of adatom deposition on surface magnetism and exchange coupling parameter in (0001) SmCo{sub 5} slabs

First principles calculations are performed on 3d-transition metal atom deposited (0001) surface of SmCo{sub 5} to understand the magnetic properties and the improvement of Curie temperature (T{sub c}). Various atomic sites are examined to identify the energetically feasible adsorption of adatom and it is found that the void site of Co-rich (0001) SmCo{sub 5} surface is the most favourable one to deposit. The surface magnetic moments of various adatom deposited SmCo{sub 5} surfaces are larger than the clean surface except for Cu and Zn. Eventually, the surface exchange coupling of clean and adatom deposited surface is found to increase for Mn, Fe, Co, Ni, and Cu deposited surfaces and this improvement results in the increase in T{sub c} of SmCo{sub 5} slab.
Authors:
;  [1] ; ;  [2]
  1. CSIR Central Electrochemical Research Institute, Karaikudi 630 003 (India)
  2. Defence Metallurgical Research Laboratory, Hyderabad 500 058 (India)
Publication Date:
OSTI Identifier:
22399381
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 13; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ADSORPTION; ATOMS; COBALT; COUPLING; CRYSTAL STRUCTURE; CURIE POINT; DEPOSITION; INTERMETALLIC COMPOUNDS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; MAGNETISM; SAMARIUM; SLABS; SURFACES