Title: Exchange bias and exchange spring effects in Fe/CrN bilayers

Journal Article · · Journal of Physics. D, Applied Physics
ORCiD logo [1];  [2];  [3];  [4];  [5];  [6]; ORCiD logo [2];  [6]
  1. Ohio Univ., Athens, OH (United States); King Fahd Univ. of Petroleum and Minerals, Dhahran (Saudi Arabia); The Ohio State University
  2. The Ohio State Univ., Columbus, OH (United States)
  3. Ohio Univ., Athens, OH (United States); Benemerita Universidad Autónoma de Puebla (BUAP) (Mexico); Univ. Nacional Autonoma de Mexico (UNAM), Mexico City (Mexico)
  4. Benemerita Universidad Autónoma de Puebla (BUAP) (Mexico)
  5. Ohio Univ., Athens, OH (United States); Univ. Nacional Autonoma de Mexico (UNAM), Mexico City (Mexico)
  6. Ohio Univ., Athens, OH (United States)
+ Show Author Affiliations

Here we studied exchange bias and exchange spring effects in magnetic bilayer thin films of Fe and CrN grown by molecular beam epitaxy. First, the relationships between exchange bias, coercivity, and blocking temperature and the Fe and CrN layers thicknesses are studied. Second, the exchange spring effect is observed and studied in all samples. The exchange spring breaks free at critical applied field strengths while creating planar domain walls at lower applied fields. First-principles calculations are performed to understand the magnetic interactions between the Fe and CrN layers at their interfaces. The calculations are key to understanding the experimental observations.

Research Organization:
Ohio Univ., Athens, OH (United States); The Ohio State Univ., Columbus, OH (United States)
Sponsoring Organization:
CONACyT; USDOE Office of Science (SC), Basic Energy Sciences (BES); Univ. Nacional Autonoma de Mexico (UNAM)
Grant/Contract Number:
FG02-06ER46317; SC0001304
OSTI ID:
1594167
Report Number(s):
DOE-OSU-01304
Journal Information:
Journal of Physics. D, Applied Physics, Journal Name: Journal of Physics. D, Applied Physics Journal Issue: 12 Vol. 53; ISSN 0022-3727
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
antiferromagnetic CrN
exchange bias
exchange spring.