Exchange bias and exchange spring effects in Fe/CrN bilayers
Abstract
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.
- Authors:
-
- Ohio Univ., Athens, OH (United States); King Fahd Univ. of Petroleum and Minerals, Dhahran (Saudi Arabia)
- The Ohio State Univ., Columbus, OH (United States)
- Ohio Univ., Athens, OH (United States); Benemerita Universidad Autónoma de Puebla (BUAP) (Mexico); Univ. Nacional Autonoma de Mexico (UNAM), Mexico City (Mexico)
- Benemerita Universidad Autónoma de Puebla (BUAP) (Mexico)
- Ohio Univ., Athens, OH (United States); Univ. Nacional Autonoma de Mexico (UNAM), Mexico City (Mexico)
- Ohio Univ., Athens, OH (United States)
- Publication Date:
- Research Org.:
- The Ohio State Univ., Columbus, OH (United States); Ohio Univ., Athens, OH (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); Univ. Nacional Autonoma de Mexico (UNAM); CONACyT
- OSTI Identifier:
- 1594167
- Report Number(s):
- DOE-OSU-01304
Journal ID: ISSN 0022-3727; TRN: US2101704
- Grant/Contract Number:
- SC0001304; FG02-06ER46317; IN101019; A1-S-9070; LANCAD-UNAM-DGTIC051
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physics. D, Applied Physics
- Additional Journal Information:
- Journal Volume: 53; Journal Issue: 12; Journal ID: ISSN 0022-3727
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; antiferromagnetic CrN; exchange bias; exchange spring.
Citation Formats
Alam, Khan, Meng, Keng-Yuan, Ponce-Pérez, Rodrigo, Cocoletzi, Gregorio H., Takeuchi, Noboru, Foley, Andrew, Yang, Fengyuan, and Smith, Arthur R. Exchange bias and exchange spring effects in Fe/CrN bilayers. United States: N. p., 2020.
Web. doi:10.1088/1361-6463/ab6147.
Alam, Khan, Meng, Keng-Yuan, Ponce-Pérez, Rodrigo, Cocoletzi, Gregorio H., Takeuchi, Noboru, Foley, Andrew, Yang, Fengyuan, & Smith, Arthur R. Exchange bias and exchange spring effects in Fe/CrN bilayers. United States. https://doi.org/10.1088/1361-6463/ab6147
Alam, Khan, Meng, Keng-Yuan, Ponce-Pérez, Rodrigo, Cocoletzi, Gregorio H., Takeuchi, Noboru, Foley, Andrew, Yang, Fengyuan, and Smith, Arthur R. Mon .
"Exchange bias and exchange spring effects in Fe/CrN bilayers". United States. https://doi.org/10.1088/1361-6463/ab6147. https://www.osti.gov/servlets/purl/1594167.
@article{osti_1594167,
title = {Exchange bias and exchange spring effects in Fe/CrN bilayers},
author = {Alam, Khan and Meng, Keng-Yuan and Ponce-Pérez, Rodrigo and Cocoletzi, Gregorio H. and Takeuchi, Noboru and Foley, Andrew and Yang, Fengyuan and Smith, Arthur R.},
abstractNote = {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.},
doi = {10.1088/1361-6463/ab6147},
journal = {Journal of Physics. D, Applied Physics},
number = 12,
volume = 53,
place = {United States},
year = {2020},
month = {1}
}
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