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Heindl, Emanuel ; Vancea, Johann ; Woltersdorf, Georg ; Back, Christian

Hot-electron transport and magnetic anisotropy in epitaxial spin valves

Article

Heindl, Emanuel, Vancea, Johann, Woltersdorf, Georg and Back, Christian (2007) Hot-electron transport and magnetic anisotropy in epitaxial spin valves. Physical Review B (PRB) 76, p. 104435.

DOI to cite this document: 10.5283/epub.2628


Abstract

We report on ballistic electron magnetic microscopy studies at room temperature using an epitaxially grown Fe34Co66/Au/Fe34Co66 trilayer. Local hysteresis loops are obtained as a function of the in-plane magnetic field angle. In order to understand the underlying local magnetization behavior, the magnetic anisotropies were determined by ferromagnetic resonance. These results served as input for ...

We report on ballistic electron magnetic microscopy studies at room temperature using an epitaxially grown Fe34Co66/Au/Fe34Co66 trilayer. Local hysteresis loops are obtained as a function of the in-plane magnetic field angle. In order to understand the underlying local magnetization behavior, the magnetic anisotropies were determined by ferromagnetic resonance. These results served as input for simulations of the hysteresis loops, which are compared to magneto-optic Kerr effect and ballistic electron magnetic microscopy data of the spin valve. In doing so, the relative magnetization configuration of the spin valve can be calculated as a function of the external magnetic field, and the magnetization behavior during the reversal can be explained. Since different magnetization configurations of the spin valve are available, epitaxial spin valves allow multimagnetocurrent values, when the magnetic field is applied along different directions.



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Details

Item typeArticle
Journal or Publication TitlePhysical Review B (PRB)
PublisherAMER PHYSICAL SOC
Open Access TypeDue to SHERPA/RoMEO
Place of PublicationCOLLEGE PK
Volume76
Page Rangep. 104435
Date2007
Date of publication05 Aug 2009 13:40
InstitutionsPhysics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Chair Professor Back > Group Christian Back
Identification Number
ValueType
10.1103/PhysRevB.76.104435DOI
KeywordsEMISSION MICROSCOPY; TUNNEL TRANSISTORS; THIN-FILMS; MAGNETORESISTANCE; MAGNETOCURRENT; SUPERLATTICES; GAAS(001); EXCHANGE; LAYERS; NI;
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-26283
Item ID2628

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