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Title: Interface-dependent magnetotransport properties for thin Pt films on ferrimagnetic Y{sub 3}Fe{sub 5}O{sub 12}

We have studied magnetoresistance and Hall effects for 1.8-nm-thick Pt films grown on a ferrimagnetic insulator Y{sub 3}Fe{sub 5}O{sub 12} in a wide temperature (0.46–300 K) and magnetic-field (−15 to 15 T) region. In the low-temperature regime where quantum corrections to conductivity are observed, weak antilocalization behavior observed in Pt films is critically suppressed when the film is attached to Y{sub 3}Fe{sub 5}O{sub 12}. Hall resistance in the Pt film is also affected by Y{sub 3}Fe{sub 5}O{sub 12}, and it exhibits logarithmic temperature dependence in a broad temperature range. The magnetotransport properties in the high-field range are significantly influenced by the interface between Pt and Y{sub 3}Fe{sub 5}O{sub 12}.
Authors:
; ; ;  [1] ;  [2] ;  [1] ;  [3] ;  [1] ;  [3] ;  [1] ;  [3] ;  [3] ;  [3]
  1. Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
  2. WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
  3. (Japan)
Publication Date:
OSTI Identifier:
22300259
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 24; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CORRECTIONS; FERRIMAGNETIC MATERIALS; FERRITES; HALL EFFECT; INTERFACES; MAGNETIC FIELDS; MAGNETORESISTANCE; PLATINUM; TEMPERATURE DEPENDENCE; THIN FILMS; YTTRIUM COMPOUNDS