hh.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Magnetoresistance studies on CoAl OX Au and CoAl OX NiAu tunnel structures
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Applied Mathematics and Physics (CAMP).
Kalmar University, Kalmar, Sweden.
Lund University, Lund, Sweden.
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Applied Mathematics and Physics (CAMP).
2008 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 93, no 20, 203107-203107-3 p.Article in journal (Refereed) Published
Abstract [en]

We report on magnetoresistance (MR) studies on CoAl OX Au and CoAl OX NiAu magnetic tunnel junctions. In spite of the fact that the difference between the two samples is merely a 3 nm thick Ni layer, there is a sharp contrast in MR behavior indicating that the electronic structure at the interface between the ferromagnetic electrodes and the insulating barrier dominates the MR signal. The former sample exhibits a clear tunneling anisotropic MR (TAMR), with the characteristic correlation between resistance and current direction, in contrast to the latter sample which displays a conventional tunneling MR (TMR) dominated by the relative orientation between the magnetization directions of the two electrodes. In addition, the TAMR has a much stronger temperature dependence than the TMR, indicating a much faster drop-off of the tunneling density of states anisotropy than the tunneling electron spin polarization with increasing temperature. Finally, we propose a possible simple way to distinguish TAMR from normal TMR by measuring the resistance of the device at different angles of the external magnetic field. 2008 American Institute of Physics.

Place, publisher, year, edition, pages
New York: American Institute of Physics (AIP), 2008. Vol. 93, no 20, 203107-203107-3 p.
Keyword [en]
Tunnel junctions, Anisotropy, Coal, Coal industry, Electric resistance, Electrodes, Electronic structure, Magnetic field effects, Magnetic fields, Magnetoelectronics, Magnetoresistance, Semiconductor junctions, Spin dynamics, Tunneling (excavation), Tunnels
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:hh:diva-3464DOI: 10.1063/1.3000614ISI: 000261141400050Scopus ID: 2-s2.0-56849094689OAI: oai:DiVA.org:hh-3464DiVA: diva2:293357
Available from: 2010-02-11 Created: 2009-12-01 Last updated: 2014-03-26Bibliographically approved

Open Access in DiVA

fulltext(376 kB)110 downloads
File information
File name FULLTEXT01.pdfFile size 376 kBChecksum SHA-512
5479ca19fec2a549e5484b2ee532407df90f13e4d47fb0c340f76a0fac3258eb4d20c4837877bcf93857fa5592f270cc7b37aec8d9aaae257a2a7cf7e9827de4
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Liu, Ruisheng S.Pettersson, Håkan
By organisation
Applied Mathematics and Physics (CAMP)
In the same journal
Applied Physics Letters
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 110 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 201 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf