Published April 1, 2011 | Version v1
Journal article Metadata-only

Hard/graded exchange spring composite media based on FePt

Creators

  • 1. IMS, NCSR Demokritos, Aghia Paraskevi, Attikis, Athens 15310 (Greece)
  • 2. Institute of Solid State Physics, Vienna University of Technology, Wiedner Hauptstr. 8-10, A-1040 Vienna (Austria)
  • 3. ISM-CNR Area della Ricerca Roma1, Via Salaria km 29.300, C.P. 10, 00016 Monterotondo Scalo (Italy)

Description

Hard-FePt(L10)/graded-FePt(L10 to A1) exchange spring composite media with perpendicular magnetic anisotropy have been studied. Changing the deposition temperature affects the structural transformation of FePt from cubic phase A1, which is magnetically soft, to the tetragonal phase L10, which is magnetically hard. Using this mechanism we were able to fabricate hard/graded composite films. Magnetic measurements revealed a significant reduction of the composite films' switching fields in comparison with those of the single hard layer.

Additional details

Identifiers

DOI
10.1063/1.3556773;

Publishing Information

Journal Title
Journal of Applied Physics
Journal Volume
109
Journal Issue
7
Journal Page Range
p. 07B729-07B729.3
ISSN
0021-8979
CODEN
JAPIAU

Conference

Title
55. annual conference on magnetism and magnetic materials
Dates
14-18 Nov 2010
Place
Atlanta, GA (United States)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43037643
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANISOTROPY; COMPARATIVE EVALUATIONS; COMPOSITE MATERIALS; DEPOSITION; IRON ALLOYS; LAYERS; MAGNETIC MATERIALS; PERMANENT MAGNETS; PHASE TRANSFORMATIONS; PLATINUM ALLOYS; THIN FILMS; TRANSFORMATIONS
Descriptors DEC
ALLOYS; EQUIPMENT; EVALUATION; FILMS; MAGNETS; MATERIALS; PLATINUM METAL ALLOYS; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
(c) 2011 American Institute of Physics