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Title: High frequency electromagnetic properties of interstitial-atom-modified Ce{sub 2}Fe{sub 17}N{sub X} and its composites

The magnetic and microwave absorption properties of the interstitial atom modified intermetallic compound Ce{sub 2}Fe{sub 17}N{sub X} have been investigated. The Ce{sub 2}Fe{sub 17}N{sub X} compound shows a planar anisotropy with saturation magnetization of 1088 kA/m at room temperature. The Ce{sub 2}Fe{sub 17}N{sub X} paraffin composite with a mass ratio of 1:1 exhibits a permeability of μ′ = 2.7 at low frequency, together with a reflection loss of −26 dB at 6.9 GHz with a thickness of 1.5 mm and −60 dB at 2.2 GHz with a thickness of 4.0 mm. It was found that this composite increases the Snoek limit and exhibits both high working frequency and permeability due to its high saturation magnetization and high ratio of the c-axis anisotropy field to the basal plane anisotropy field. Hence, it is possible that this composite can be used as a high-performance thin layer microwave absorber.
Authors:
; ; ; ; ; ; ; ; ; ; ;  [1] ;  [2] ;  [3]
  1. School of Physics, Peking University, Beijing 100871 (China)
  2. State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871 (China)
  3. (China)
Publication Date:
OSTI Identifier:
22311092
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 2; 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; ABSORPTION; ANISOTROPY; ATOMS; CERIUM COMPOUNDS; GHZ RANGE; INTERMETALLIC COMPOUNDS; IRON COMPOUNDS; MAGNETIZATION; MASS; MICROWAVE RADIATION; NITROGEN COMPOUNDS; PERMEABILITY; REFLECTION; TEMPERATURE RANGE 0273-0400 K; THICKNESS; THIN FILMS