RIST lecture series #7 : Magnetisation dynamics of nano-scale elements
Date : 11th December, 2014
INVITATION FOR RIST POPULAR TALK
You are cordially invited to attend the monthly popular talk series organized by the RESEARCH INSTITUTE OF SCIENCE AND TECHNOLOGY (RIST), IMPHAL
Topic:
Investigation of magnetisation dynamics of nano-scale elements, writer structure and sensor heads for industrial applications
By:
Dr. Prim Gangmei
School of Physics, University of Exeter, UK
Senior Research and Development Engineer, Seagate Technology, U.K.
Abstract:
The magnetisation dynamics of a single square nanomagnet, the interaction between a pair of nanodiscs, a partially built writer and magnetic tunnel junction sensor have been investigated by using time resolved scanning Kerr microscopy (TRSKM) and four probe contact DC electrical transport measurements. An interesting stronger dynamic dipolar interaction was observed. The rise time, relaxation time and amplitude of partially built hard disk writer structures have been investigated using TRSKM measurements.
The microwave emission of magnetic tunnel junction nanopillars with symmetric CoFeB/MgO/CoFeB interfaces and a 9-nm thick free layer was studied as a function of magnetic field. The dependence of frequency, amplitude and linewidth of the lowest frequency edge-localized mode upon the applied field and current have been interpreted in terms of combined thermal and spin-transfer-torque (STT) excitations.
VENUE and DATE:
Seminar Hall, Department Of Physics, Manipur University
Thursday, 11th December, 2014 at 2 p.m.
(N. Nimai Singh)
Convener,
RIST monthly popular talk series
* This information is sent by Dr. Ngangkham Nimai Singh who can be contacted at nimai03(aT)yahoo(dot)com
This Post is webcasted on November 28 2014
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