NDLI: Wall motion and rotational magnetization in thin permalloy films

Content Provider	IEEE Xplore Digital Library
Author	Sakurai, Y. Kusuda, T. Konishi, S. Sugatani, S.
Copyright Year	1965
Abstract	Dynamic and nearly static magnetization reversal mechanisms in thin permalloy films are investigated experimentally using pulse techniques and vector locus configurations. At least for the driving field strength used, easy-axis switching waveforms indicate that wall motion is predominant when no transverse field is applied. At a given transverse bias field, the simultaneous pick-up signals from aligned and crossed loops show that the voltage-time integral at zero crossing time of the transverse signal becomes dominant for increasing drive field. The complicated irreversible magnetization phenomena on the astroid are illustrated experimentally on the coordinate system by the vector locus for a 10 kc/s sinusoidal driving field and pulse field having 0.5 ns rise-time. Wall motion and rotation during flux reversal are clearly distinguished on these configurations for various combinations of externally applied fields. The critical angle for coherent rotation is in good agreement with that derived from the Stoner-Wohlfarth model at a 10 kc/s sinusoidal field. However, for excess driving pulse fields, the dynamic vector locus suggests that until the walls nucleate and start to move, the coherent rotation continues over the critical angle suggested by the astroid. This gives a clear answer as to the cause of the nonlinearity on the plots of the inverse reversal time vs. driving field with the transverse bias field as a parameter.
Sponsorship	IEEE Magnetics Society
Starting Page	570
Ending Page	575
Page Count	6
File Size	683499
File Format	PDF
ISSN	00189464
Volume Number	2
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1966-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic flux Glass Magnetic hysteresis Magnetization reversal Voltage Physics Magnetic films Magnetic switching Magnetic fields
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

AC Field Assisted Magnetization Reversal in Ferromagnetic Thin Films

Influence of Different Onion States on Magnetization Reversal Processes in Permalloy Rings

Rotational hysteresis for domain wall motion in the presence of demagnetizing fields

Magnetization reversal in nanostructured permalloy rings

Model for perpendicular hysteresis of thin magnetic films

Asymmetric Hysteresis of Néel Caps in Flux-Closure Magnetic Dots

Influence of Notch Positions on Magnetization Reversal Processes in Permalloy Rings

Vortex Core Switching Dynamics in Submicron Permalloy Disk

A study of noncoherent rotational switching for thin magnetic films

Wall motion and rotational magnetization in thin permalloy films

Similar Documents

AC Field Assisted Magnetization Reversal in Ferromagnetic Thin Films

Influence of Different Onion States on Magnetization Reversal Processes in Permalloy Rings

Rotational hysteresis for domain wall motion in the presence of demagnetizing fields

Magnetization reversal in nanostructured permalloy rings

Model for perpendicular hysteresis of thin magnetic films

Asymmetric Hysteresis of Néel Caps in Flux-Closure Magnetic Dots

Influence of Notch Positions on Magnetization Reversal Processes in Permalloy Rings

Vortex Core Switching Dynamics in Submicron Permalloy Disk

A study of noncoherent rotational switching for thin magnetic films

Wall motion and rotational magnetization in thin permalloy films