NDLI: Magneto-Electric Control of Surface Anisotropy and Nucleation Modes in L1<inline-formula><tex-math> $_{0}$</tex-math></inline-formula>-CoPt Thin Films

Content Provider	IEEE Xplore Digital Library
Author	Manchanda, P. Kumar, P. Fangohr, H. Sellmyer, D.J. Kashyap, A. Skomski, R.
Copyright Year	2010
Abstract	The interplay between electric field-controlled surface magnetic anisotropy and micromagnetic nucleation modes for L1₀-CoPt thin films is investigated with density-functional and micromagnetic model calculations. The electric field redistributes electron states near the Fermi level, which has a fairly strong effect on the surface anisotropy, but due to inversion symmetry, the net anisotropy of the films with odd numbers of layers remains unchanged. By contrast, the micromagnetic nucleation mode is spatially asymmetric even for symmetric thin films with odd numbers of layers. This leads to a reduction of the nucleation field (coercivity) and-for suitably chosen nanostructures-to substantial changes in the hysteretic behavior. In the lowest order, the coercivity reduction is independent of the total film thickness. This counterintuitive feature can potentially be exploited in magneto-electric switching devices.
Starting Page	1
Ending Page	4
Page Count	4
File Size	300410
File Format	PDF
ISSN	1949307X
Volume Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Anisotropic magnetoresistance Electric fields Films Perpendicular magnetic anisotropy Micromagnetics thin-films Magneto-electronics thin films
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials

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

Domain nucleation stability

Stray fields in thin magnetic films

The nucleation and reversal of magnetisation in high fields to form cylindrical domains in thin magnetic films

High anisotropy L1/sub 0/ thin films for longitudinal recording

Oscillatory Anisotropic Magnetoresistance Arising From Quantum Well States in Au/Fe(001) Bilayers

Micromagnetic correlations in thin films

Field control of magneto-optic gratings

Coherent Rotation and Effective Anisotropy

Domain Structure in CoFeB Thin Films With Perpendicular Magnetic Anisotropy

Magneto-Electric Control of Surface Anisotropy and Nucleation Modes in L1 $_{0}$-CoPt Thin Films

Similar Documents

Domain nucleation stability

Stray fields in thin magnetic films

The nucleation and reversal of magnetisation in high fields to form cylindrical domains in thin magnetic films

High anisotropy L1/sub 0/ thin films for longitudinal recording

Oscillatory Anisotropic Magnetoresistance Arising From Quantum Well States in Au/Fe(001) Bilayers

Micromagnetic correlations in thin films

Field control of magneto-optic gratings

Coherent Rotation and Effective Anisotropy

Domain Structure in CoFeB Thin Films With Perpendicular Magnetic Anisotropy

Magneto-Electric Control of Surface Anisotropy and Nucleation Modes in L1 $_{0}$-CoPt Thin Films