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Title: Modification of Bi:YIG film properties by substrate surface ion pre-treatment

Highlights: • Effects of substrates ion beam treatment on magnetoptical properties Bi:YIG films. • Substrate surface damage results in sign inversion of the magneto-optical effects. • Atomically smooth films growth takes place on low energy ions treated substrates. • High energy ions treatment results in selective nucleation mechanism of the growth. - Abstract: The effect of a controlled ion beam pre-treatment of (1 1 1)-oriented Gd{sub 3}Ga{sub 5}O{sub 12} substrates on the magneto-optical properties and surface morphology of the ultrathin bismuth-substituted yttrium–iron garnet films with a composition Bi{sub 2.8}Y{sub 0.2}Fe{sub 5}O{sub 12} was studied. It has been shown that the observed sign inversion of magneto-optical effects (Faraday rotation and magnetic circular dichroism) observed in films that were deposited on the GGG substrate pre-treated by 1 keV and 4 keV Ar{sup +} ion beams is a result of the substrate surface amorphization caused by the ion bombardment.
Authors:
; ; ; ;  [1] ;  [2] ;  [3] ; ;  [4] ;  [5] ;  [4]
  1. Taurida National V.I. Vernadsky University, Vernadsky Avenue, 4, Simferopol, 95007 (Ukraine)
  2. V.A. Kotelnikov Institute of Radio Engineering and Electronics, RAS, 11 Mohovaya Street, Moscow, 125009 (Russian Federation)
  3. Moscow Institute of Physics and Technology, Dolgoprudny, 141700 (Russian Federation)
  4. Institute of Magnetism, NAS of Ukraine, 03142, Kiev (Ukraine)
  5. Electron Science Research Institute, Edith Cowan University, 270 Joondalup Drive, Joondalup 6027 (Australia)
Publication Date:
OSTI Identifier:
22348666
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 55; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ARGON IONS; DEPOSITS; FARADAY EFFECT; FERRITE GARNETS; FILMS; ION BEAMS; IRON OXIDES; KEV RANGE; MAGNETIC PROPERTIES; MAGNETO-OPTICAL EFFECTS; NUCLEATION; OPTICAL PROPERTIES; SPUTTERING; SUBSTRATES; YTTRIUM COMPOUNDS