Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session D57: Spin Dependent Transport II
3:00 PM–5:48 PM,
Monday, March 6, 2023
Room: Room 303
Sponsoring
Unit:
GMAG
Chair: Stuart Calder, Oak Ridge National Laboratory
Abstract: D57.00011 : Thickness dependent Magnetoresistance (MR) in Europium (Eu) metal Thin Films*
5:00 PM–5:12 PM
Presenter:
Narendra Shrestha
(University of Wyoming)
Authors:
Narendra Shrestha
(University of Wyoming)
Jinke Tang
(University of Wyoming)
Thinner Eu films reveal positive MR at much lower temperature, below 30 K, and exhibit negative MR above that. The positive MR at low temperatures may originate from magnetic field induced spin fluctuation. And the negative MR at higher temperature is a result of suppression of fluctuation of the localized spins by the magnetic field. The thinner Eu films show hysteretic MR peaks in mid field range, which is a result of re-alignment and re-distribution of the antiferromagnetic domains by the magnetic fields. We will also discuss the experimental results of the Hall effect of the films.
*This work was supported by the U. S. Dept of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering (DE-SC0021281 and DE-SC0020074).
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