NDLI: The Origin for Training Effects in Exchange Bias Systems: Frustration and Multiple Anisotropy Axes at the Interface

Content Provider	IEEE Xplore Digital Library
Author	Hoffmann, A.
Copyright Year	2006
Description	Author affiliation: Argonne Nat. Lab., Argonne (Hoffmann, A.)
Abstract	The interaction of an antiferromagnet with a ferromagnet can establish a unidirectional anisotropy, which is referred to as an exchange bias. This paper presents a numerical simulations based on a simple coherent rotation model, which imply that the initial irreversibilities observed between the first and second hysteresis loop are driven by the symmetry of the antiferromagnet. The availability of more than one easy axis in a high symmetry antiferromagnet can give rise to a spin-flop transition during the first field reversal, after which the antiferromagnetic spins are trapped in a metastable configuration. The calculations show a very pronounced training effect for the case of antiferromagnets with two anisotropy axes, while no training is observed for antiferromagnets with only one anisotropy axis. This explains quite naturally why training effects are only observed for exchange bias systems with high symmetry antiferromagnets, while they are absent for antiferromagnets with uniaxial anisotropy.
Starting Page	582
Ending Page	582
File Size	51096
Page Count	1
File Format	PDF
ISBN	1424414792
DOI	10.1109/INTMAG.2006.376306
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-05-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Intermag Conference
Subject Keyword	Anisotropic magnetoresistance Antiferromagnetic materials Magnetic hysteresis Materials science and technology Laboratories Cooling Micromagnetics Numerical simulation Availability Metastasis
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Modelling of interactions at ferro/antiferromagnetic interfaces

Monte Carlo Simulation of the FM Layer Thickness Influence on the Exchange Bias in FM/AFM Bilayers

Perpendicular exchange bias in nickel/antiferromagnetic bilayers

Size effects of switching fields of thin permalloy particles

Vortex Nucleation in Exchange Biased Magnetic Nanoelements

Exchange anisotropy in a phase-decomposed Fe-12% Mn alloy

Magnetization process of polycrystalline NiFe/NiO bilayers with enhanced coercivity

Exchange bias with perpendicular anisotropy in (Pt/Co)/sub n//FeMn multilayers

Micromagnetic calculation of bias field and coercivity of exchange biased IrMn/NiFe bilayers

The Origin for Training Effects in Exchange Bias Systems: Frustration and Multiple Anisotropy Axes at the Interface

Similar Documents

Modelling of interactions at ferro/antiferromagnetic interfaces

Monte Carlo Simulation of the FM Layer Thickness Influence on the Exchange Bias in FM/AFM Bilayers

Perpendicular exchange bias in nickel/antiferromagnetic bilayers

Size effects of switching fields of thin permalloy particles

Vortex Nucleation in Exchange Biased Magnetic Nanoelements

Exchange anisotropy in a phase-decomposed Fe-12% Mn alloy

Magnetization process of polycrystalline NiFe/NiO bilayers with enhanced coercivity

Exchange bias with perpendicular anisotropy in (Pt/Co)/sub n//FeMn multilayers

Micromagnetic calculation of bias field and coercivity of exchange biased IrMn/NiFe bilayers

The Origin for Training Effects in Exchange Bias Systems: Frustration and Multiple Anisotropy Axes at the Interface