Published 2011 | Version v1
Miscellaneous Metadata-only

Studying the magnetic anisotropy in CuFeO2 by x-ray magnetic circular dichroism

Creators

  • 1. Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland)
  • 2. National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, JP-3050047 Ibaraki (Japan)
  • 3. IN2UB, Universitat de Barcelona, Departament de Fisica Fonamental, ES-08028 Barcelona (Spain)
  • 4. ICMP, EPFL, CH-1015 Lausanne (Switzerland)

Description

Full text: The compound CuFeO2 has a delafossite structure where triangular layers of magnetic Fe3+ are separated by non-magnetic Cu1+ and O2- layers. CuFeO2 orders in a collinear four sublattice structure below TN2=11K. Moreover, associated with TN2 is a first order structural transition from hexagonal to orthorhombic. The explanation for the collinear magnetic structure remains unclear for CuFeO2, since it requires a 2D Ising model type, which is difficult to conciliate with the spherical Fe3+ ion. However, structural distortions around the Fe3+ ion and/or charge transfer could lead to a non-zero orbital magnetic moment. This might explain the puzzling strong magnetic anisotropy in CuFeO2. We present x-ray magnetic circular dichroism (XMCD) data extracting separately the orbital and spin moments of the Fe3+ ions. These results are discussed in the context to the observed magnetic anisotropy. (author)

Part of:
Joint Annual Meeting of the Swiss Physical Society and the Austrian Physical Society together with the Swiss and Austrian Societies for Astronomy and Astrophysics

Additional details

Additional titles

Original title (English)
Gemeinsame Jahrestagung der Schweizerischen Physikalischen Gesellschaft und der Oesterreichischen Physikalischen Gesellschaft zusammen mit den Schweizerischen und Oesterreichischen Gesellschaften fuer Astronomie und Astrophysik

Identifiers

URL
http://www.sps.ch/events/gemeinsame_jahrestagung_2011/;

Publishing Information

Publisher
Swiss Physical Society
Imprint Place
Basel (Switzerland)
Imprint Title
Joint Annual Meeting of the Swiss Physical Society and the Austrian Physical Society together with the Swiss and Austrian Societies for Astronomy and Astrophysics
Imprint Pagination
vp.
Journal Page Range
p. 38

Conference

Title
Joint Annual Meeting of the Swiss Physical Society and the Austrian Physical Society together with the Swiss and Austrian Societies for Astronomy and Astrophysics
Original Conference Title
Gemeinsame Jahrestagung der Schweizerischen Physikalischen Gesellschaft und der Oesterreichischen Physikalischen Gesellschaft zusammen mit der Schweizerischen und Oesterreichischen Gesellschaften fuer Astronomie und Astrophysik
Dates
15-17 Jun 2011
Place
Lausanne (Switzerland)

INIS

Country of Publication
Switzerland
Country of Input or Organization
Austria
INIS RN
43046533
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
ANISOTROPY; COPPER COMPOUNDS; IRON IONS; IRON OXIDES; ISING MODEL; MAGNETIC CIRCULAR DICHROISM; MAGNETIC MOMENTS; ORTHORHOMBIC LATTICES; SPIN; TEMPERATURE RANGE 0000-0013 K; X RADIATION
Descriptors DEC
ANGULAR MOMENTUM; CHALCOGENIDES; CHARGED PARTICLES; CRYSTAL LATTICES; CRYSTAL MODELS; CRYSTAL STRUCTURE; DICHROISM; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; IONS; IRON COMPOUNDS; MATHEMATICAL MODELS; OXIDES; OXYGEN COMPOUNDS; PARTICLE PROPERTIES; RADIATIONS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
Imprint:Gemeinsame Jahrestagung der Schweizerischen Physikalischen Gesellschaft und der Oesterreichischen Physikalischen Gesellschaft zusammen mit den Schweizerischen und Oesterreichischen Gesellschaften fuer Astronomie und Astrophysik