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Electrical spin injection in multiwall carbon nanotubes with transparent ferromagnetic contacts

Sahoo, S.; Kontos, T.; Schönenberger, C.; Sürgers, Christoph

Abstract: We report on electrical spin injection measurements on multiwall carbon nanotubes (MWNTs). We use a ferromagnetic alloy Pd1-xNix with x approximate to 0.7 which allows us to obtain devices with resistances as low as 5.6 k Omega at 300 K. The yield of device resistances below 100 k Omega, at 300 K, is around 50%. We measure at 2 K a hysteretic magneto-resistance due to the magnetization reversal of the ferromagnetic leads. The relative difference between the resistance in the antiparallel (AP) orientation and the parallel (P) orientation is about 2%. (C) 2005 American Institute of Physics.


Zugehörige Institution(en) am KIT Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Jahr 2005
Sprache Englisch
Identifikator DOI: 10.1063/1.1882761
ISSN: 0003-6951
KITopen ID: 1000050527
Erschienen in Applied Physics Letters
Band 86
Heft 11
Seiten 112109
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