Heindl, Emanuel and Kefes, Christoph and Soda, Marcello and Vancea, Johann and Back, Christian (2009) Hot electron spin attenuation lengths of bcc Fe34Co66—Room temperature Magnetocurrent of 1200%. Journal of Magnetism and Magnetic Materials 321 (22), p. 3693.
Full text not available from this repository.
We investigate spin-dependent hot electron transport through metallic epitaxial spin valves by ballistic electron magnetic microscopy (BEMM). By variation of the thickness of one of the ferromagnetic layers we determine the spin dependent attenuation lengths which reflect hot electron transport along the vicinity of the [1 0 0]-axis of the bcc Fe34Co66 lattice. The majority spin attenuation length is more than 6 times larger than that of the minority spins within the measured energy interval of 1.3 up to 2 eV above the Fermi level. Consequently a Magnetocurrent effect exceeding 1200% accompanied by a monotonic bias voltage behavior is observed at room temperature.
|Date:||9 March 2009|
|Institutions:||Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back|
|Projects:||SFB 689: Spinphänomene in reduzierten Dimensionen|
|Keywords:||BEMM; MTT; Ballistic transport|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||06 Jun 2012 11:27|
|Last Modified:||06 Jun 2012 11:27|