Title :
Spin polarization of Co2MnGe and Co2MnSi thin films with A2 and L21 structures
Author :
Rajanikanth, A. ; Takahashi, Y. ; Hono, K.
Abstract :
The present work aims at studying spin polarizations of Co2MnSi (CMS) and Co2MnGe (CMG ) polycrystaline thin films with L2, and A2 order by the point contact Andreev reflection (PCAR) technique. Results reveal that within the experimental errors of the PCAR technique, the spin polarization of the L21 ordered and A2 ordered thin films in both the alloys are almost the same. Hence, these alloys are predicted to be half-metals with 100% spin polarization.
Keywords :
cobalt alloys; electron spin polarisation; germanium alloys; magnetic thin films; manganese alloys; metallic thin films; silicon alloys; A2 ordering; A2 structures; Co2MnGe; Co2MnGe thin films; Co2MnSi; Co2MnSi thin films; L21 ordering; L21 structures; half-metals; point contact Andreev reflection; polycrystaline thin films; spin polarization; Chemicals; Collision mitigation; Magnetic analysis; Polarization; Saturation magnetization; Sputtering; Substrates; Temperature; Transistors; Tunneling;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.376104
