Spin Polarization Experimental Studies In Heusler Alloys

C. Rau; A. R. Koymen

doi:10.1117/12.967515

1 January 1987 Spin Polarization Experimental Studies In Heusler Alloys

C. Rau, A. R. Koymen

Proceedings Volume 0836, Optoelectronic Materials, Devices, Packaging, and Interconnects; (1987) https://doi.org/10.1117/12.967515
Event: Cambridge Symposium on Fiber Optics and Integrated Optoelectronics, 1987, Cambridge, MA, United States

Abstract

Atomically clean and flat surfaces of poly- and single-crstalline metallic Ni and half-metallic NiMnSb and PtMnSb are studied by electron capture spectroscopy (ECS) and by magneto-optical Kerr effect (MOKE). Long-ranged ferromagnetic order is found at all surfaces.The measured ECS-data for the electron spin polarization are consistent with predictions from recent spin-polarized band structure calculations. MOKE data ob-tained at surfaces of the Heusler alloys PtMnSb and NiMnSb contrast strikingly to data measured at Ni surfaces. At surfaces of single-crystalline PtMnSb, the Kerr effect (Kerr rotation and ellipticity) is approximately 20 times stronger compared to single-crystalline Ni(100) surfaces. This dramatic effect is attributed to the peculiar band structure of PtMnSb.

Citation Download Citation

C. Rau and A. R. Koymen "Spin Polarization Experimental Studies In Heusler Alloys", Proc. SPIE 0836, Optoelectronic Materials, Devices, Packaging, and Interconnects, (1 January 1987); https://doi.org/10.1117/12.967515

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available