Published December 2007 | Version v1
Journal article Metadata-only

Influence of film thickness on the soft magnetic properties of sputtered Co-Fe-Hf-O films

Creators

  • 1. BK 21 Physics Program and Department of Physics, Chungbuk National University, Cheongju 361-763 (Korea, Republic of)
  • 2. Research Center for Advanced Magnetic Materials (ReCAMM), Chungnam National University, Daejeon 305-764 (Korea, Republic of)
  • 3. The Kamerlingh Onnes Laboratory, Leiden University, P.O. Box 9504, 2300 RA, Leiden (Netherlands)
  • 4. Advanced Composites Centre for Innovation and Science, University of Bristol, Queen's Building, Bristol BS8 1TR (United Kingdom)
  • 5. Department of Physics Education, Kongju National University, Kongju 314-701 (Korea, Republic of)

Description

Influence of film thickness on the soft magnetic properties of Co19.35Fe53.28Hf7.92O19.35 films, which were deposited on Si(100) substrates using the oxygen reactive RF-sputtering method, has been thoroughly investigated. It is found that as the film thickness (t) increases from 50 to 430 nm, the easy-axis coercivity (HCE) strongly decreases from 26.2 to 1.5 Oe, while the hard-axis anisotropy field (HKH) significantly increases from 68.7 to 84.8 Oe and the saturation magnetization (4πMs) tends to increase from 16.8 to 19.7 kG. As t exceeds 430 nm, HKH gradually decreases, while both HCE and 4πMs remain almost unchanged. It reveals that a strong phase separation appears to occur in films with t>430 nm, resulting in the decrease of HKH. (copyright 2008 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1002/pssc.200777322

Additional details

Identifiers

DOI
10.1002/pssc.200777322;

Publishing Information

Journal Title
Physica Status Solidi. C, Conferences
Journal Volume
4
Journal Issue
12
Journal Page Range
p. 4569-4572
ISSN
1610-1634

Conference

Title
International symposium on advanced magnetic materials and applications (ISAMMA 2007)
Dates
28 May - 1 Jun 2007
Place
Jeju (Korea, Republic of)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
39024003
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ANISOTROPY; COBALT ALLOYS; COERCIVE FORCE; DEPOSITION; EXPERIMENTAL DATA; HAFNIUM ALLOYS; HYSTERESIS; IRON ALLOYS; MAGNETIC FIELDS; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; OXYGEN ADDITIONS; QUATERNARY ALLOY SYSTEMS; SPUTTERING; SUBSTRATES; SURFACES; THICKNESS; THIN FILMS; TRANSMISSION ELECTRON MICROSCOPY
Descriptors DEC
ALLOY SYSTEMS; ALLOYS; DATA; DIMENSIONS; ELECTRON MICROSCOPY; FILMS; INFORMATION; MAGNETIC PROPERTIES; MICROSCOPY; NUMERICAL DATA; PHYSICAL PROPERTIES; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
With 3 figs., 7 refs.. SICI: 1610-1634(200712)4:12<4569::AID-PSSC200777322>3.0.TX;2-1