Journal
APPLIED PHYSICS LETTERS
Volume 110, Issue 1, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4973460
Keywords
-
Categories
Funding
- Deutsche Forschungsgemeinschaft [SPP 1538, GO 944/4]
- German Excellence Initiative via the Nanosystems Initiative Munich (NIM)
Ask authors/readers for more resources
We study the influence of the interface quality of Pt/Y3Fe5O12(111) hybrids on their spin Hall magnetoresistance. This is achieved by exposing Y3Fe5O12(111) single crystal substrates to different well-defined surface treatments prior to the Pt deposition. The quality of the Y3Fe5O12(YIG) surface, the Pt/YIG interface and the Pt layer is monitored in-situ by reflection high-energy electron diffraction and Auger electron spectroscopy as well as ex-situ by atomic force microscopy and X-ray diffraction. To identify the impact of the different surface treatments on the spin Hall magnetoresistance, angle-dependent magnetoresistance measurements are carried out at room temperature. The largest spin Hall magnetoresistance is found in Pt/YIG fabricated by a two-step surface treatment consisting of a piranha etch process followed by an annealing step at 500 degrees C in pure oxygen atmosphere. Our data suggest that the small spin Hall magnetoresistance in Pt/YIG without any surface treatments of the YIG substrate prior to Pt deposition is caused by a considerable carbon agglomeration at the Y3Fe5O12 surface. Published by AIP Publishing.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available