NDLI: Exchange Bias and Its Phase Reversal in Zero Magnetization Admixed Rare-Earth Intermetallics

Content Provider	IEEE Xplore Digital Library
Author	Kulkarni, P.D. Venkatesh, S. Thamizhavel, A. Rakhecha, V.C. Ramakrishnan, S. Grover, A.K.
Copyright Year	1965
Abstract	The exchange bias effect-an important attribute in many device applications- is traditionally discussed as a form of exchange anisotropy at the interface between the ferromagnetic/antiferromagnetic layers of two distinct systems. We report here on magnetically ordered alloys possessing the feature of unidirectional anisotropy that reverses its sign at a characteristic temperature. These alloys are admixed rare-earth (RE) intermetallics, comprising two dissimilar rare-earth ions, belonging to the two different halves of the 4f series. All 4f rare-earth ions exhibit ferromagnetic coupling between the spins of their ions and the conduction electrons. Magnetic moments of dissimilar RE ions in such admixed alloys, however, get antiferromagnetically coupled, and they display a magnetic compensation feature in which the field-induced reversal in the orientation of the magnetic moments of dissimilar rare-earth ions occurs at the compensation temperature (T _comp). Above a threshold field, the conduction electron polarization also reverses its sign at T _comp. We suggest that this effect correlates with the observed phase reversal in the exchange bias field.
Sponsorship	IEEE Magnetics Society
Starting Page	2902
Ending Page	2906
Page Count	5
File Size	384071
File Format	PDF
ISSN	00189464
Volume Number	45
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetization Intermetallic Anisotropic magnetoresistance Antiferromagnetic materials Magnetic anisotropy Perpendicular magnetic anisotropy Temperature Electrons Magnetic moments Couplings zero magnetization ferromagnets Exchange bias spin ferromagnetism
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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

Exchange-Biased Magnetic Vortices

Magnetocrystalline anisotropy of rare earth intermetallics

Anisotropy of magnetic and transport properties in actinide intermetallics

Domain state model for exchange bias: training effect of diluted Co/sub 1-y/O on exchange bias in Co-CoO

Magnetization reversal processes in exchange-biased spin-valve structures

Recent applications of spin-elastic coupling in ferromagnets and antiferromagnets

Exchange Coupling in Synthetic Antiferromagnetic Multilayers for Magnetic Write Head

Nucleation rates for magnetization reversal in biaxial ferromagnets

Exchange bias and its phase reversal in the zero magnetization admixed rare earth intermetallics

Exchange Bias and Its Phase Reversal in Zero Magnetization Admixed Rare-Earth Intermetallics

Similar Documents

Exchange-Biased Magnetic Vortices

Magnetocrystalline anisotropy of rare earth intermetallics

Anisotropy of magnetic and transport properties in actinide intermetallics

Domain state model for exchange bias: training effect of diluted Co/sub 1-y/O on exchange bias in Co-CoO

Magnetization reversal processes in exchange-biased spin-valve structures

Recent applications of spin-elastic coupling in ferromagnets and antiferromagnets

Exchange Coupling in Synthetic Antiferromagnetic Multilayers for Magnetic Write Head

Nucleation rates for magnetization reversal in biaxial ferromagnets

Exchange bias and its phase reversal in the zero magnetization admixed rare earth intermetallics

Exchange Bias and Its Phase Reversal in Zero Magnetization Admixed Rare-Earth Intermetallics