Spin polarization in Zn0.95Co0.05O:(Al,Cu) thin films
Creators
- 1. Institut fuer Experimentelle Physik II, Fakultaet fuer Physik und Geowissenschaften, Universitaet Leipzig, Linnestrasse 5, D-04103 Leipzig (Germany)
Description
ZnCoO : Al, ZnCoO : (Al,Cu), and reference samples without Co have been grown by pulsed laser deposition to investigate the influence of Co-dopants and Cu-codopants on the magneto transport properties of ZnO. Positive magnetoresistance and anomalous Hall effect have been observed for ZnCoO : (Al,Cu). Versatile theoretical approaches for modelling positive magnetoresistance in ZnO-based diluted magnetic semiconductors are still to be developed. Negative magnetoresistance due to the scattering of spin-polarized charge carriers at isolated magnetic impurities has been observed in ZnO : (Al,Cu) without Co-dopants and successfully modelled. Cu-codopants enhance the positive and negative magnetoresistance in ZnCoO : Al and ZnO : Al, respectively, by one order of magnitude
Availability note (English)
Available online at http://stacks.iop.org/0022-3727/39/4920/d6_23_003.pdf or at the Web site for the Journal of Physics. D, Applied Physics (ISSN 1361-6463) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0022-3727/39/4920/d6_23_003.pdf; http://www.iop.org/;
- DOI
- 10.1088/0022-3727/39/23/003;
- PII
- S0022-3727(06)29834-6;
Publishing Information
- Journal Title
- Journal of Physics. D, Applied Physics
- Journal Volume
- 39
- Journal Issue
- 23
- Journal Page Range
- p. 4920-4924
- ISSN
- 0022-3727
- CODEN
- JPAPBE
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38006675
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALUMINIUM COMPOUNDS; CHARGE CARRIERS; COBALT COMPOUNDS; COPPER COMPOUNDS; DOPED MATERIALS; ENERGY BEAM DEPOSITION; HALL EFFECT; LASER RADIATION; MAGNETIC SEMICONDUCTORS; MAGNETORESISTANCE; PULSED IRRADIATION; SPIN ORIENTATION; THIN FILMS; ZINC OXIDES
- Descriptors DEC
- CHALCOGENIDES; DEPOSITION; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; FILMS; IRRADIATION; MATERIALS; ORIENTATION; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RADIATIONS; SEMICONDUCTOR MATERIALS; SURFACE COATING; TRANSITION ELEMENT COMPOUNDS; ZINC COMPOUNDS