Published April 1, 2008 | Version v1
Journal article Metadata-only

Effect of pulsed laser irradiation on the structural and the magnetic properties of NiMn/Co exchange bias system

Creators

  • 1. Institute of Micro and Nanomaterials, Ulm University, 89081 Ulm (Germany)
  • 2. Institut fuer Lasertechnologien in der Medizin und Messtechnik, Ulm University, 89081 Ulm (Germany)

Description

We report about the influence of pulsed laser irradiation on the structural and magnetic properties of NiMn/Co thin films. Rocking curve measurements showed a significant improvement of the (111) texture of NiMn after laser irradiation which was accompanied by grain growth. We have studied the ordering transition in as-prepared and irradiated (laser fluence of 0.15 J/cm2) samples during subsequent annealing. The onset of the fcc to fct phase transformation occurs at 325 deg. C irrespective of laser irradiation. Exchange bias fields for the laser irradiated samples are higher than those of the as-prepared samples. The observed increase in the exchange bias field for laser irradiated samples has been attributed to the increased grain size and the improved (111) texture of the NiMn layer after laser irradiation

Additional details

Identifiers

DOI
10.1063/1.2829246;

Publishing Information

Journal Title
Journal of Applied Physics
Journal Volume
103
Journal Issue
7
Journal Page Range
p. 07B502-07B502.3
ISSN
0021-8979
CODEN
JAPIAU

Conference

Title
52. annual conference on magnetism and magnetic materials
Dates
5-9 Nov 2007
Place
Tampa, FL (United States)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40017950
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANNEALING; ANTIFERROMAGNETIC MATERIALS; BINARY ALLOY SYSTEMS; COBALT; EXCHANGE INTERACTIONS; FCC LATTICES; FERROMAGNETIC MATERIALS; GRAIN GROWTH; GRAIN SIZE; LASER RADIATION; LASERS; MAGNETIC PROPERTIES; MANGANESE ALLOYS; NEUTRON DIFFRACTION; NICKEL ALLOYS; PHASE TRANSFORMATIONS; TEXTURE; THIN FILMS
Descriptors DEC
ALLOY SYSTEMS; ALLOYS; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CUBIC LATTICES; DIFFRACTION; ELECTROMAGNETIC RADIATION; ELEMENTS; FILMS; HEAT TREATMENTS; INTERACTIONS; MAGNETIC MATERIALS; MATERIALS; METALS; MICROSTRUCTURE; PHYSICAL PROPERTIES; RADIATIONS; SCATTERING; SIZE; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS

Optional Information

Notes
(c) 2008 American Institute of Physics