The OSU EECS colloquium on Thursday afternoon is postponed until a
future date (TBA).  The 9am colloquiums will still take place, today,
Thursday, Friday, and next Tuesday.  Please see
http://eecs.oregonstate.edu/graduate/colloquium/ for details.

Below is the Thursday morning colloquium abstract.


Thursday
January 27
9:00 - 9:50 AM 
Owen 102

Dr. Pallavi Dhagat 
Instructor
School of EECS
Oregon State University


Disk Drives - the parking space for data on the information superhighway


The need for storing information goes as far back as recorded history
itself. Today, hard disk drives serve this need as arguably the most
sophisticated mass storage devices ever. However, with areal densities
(in Gbits/in2) road-mapped to grow ten-fold every decade, the shrinking
magnetic 'bit' is threatened by superparamagnetism or the spontaneous
erosion of its magnetization over time. 

In this magnetically-stored presentation, I will introduce the principle
of magnetic recording and discuss my work on superparamagnetism and the
challenges in engineering an antidote to it.


Biography

Dr. Pallavi Dhagat holds a doctoral degree from Washington University,
St. Louis, where her research focused on the characterization of thermal
reversal of magnetic grains. She has an extensive background in magnetic
recording technology as a recording physicist. 

Prior to joining OSU as an instructor, she was a research engineer in
the Advanced Concepts Group at Seagate Technology, Minneapolis. Here she
made significant contribution to the development of perpendicular
recording technology.

Her research interests include information storage, magnetization
dynamics, magnetic nano-metrology, bio-magnetic sensors and distributed
sensor systems.
 




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