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VERSION:2.0
PRODID:-//RLASKEY//CALENDEROUS//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20260826T020754Z
LAST-MODIFIED:20150115T160238Z
DTSTART:20150206T170000Z
DTEND:20150206T180000Z
UID:event1396@bu.edu
URL:http://physics.bu.edu/internal/events/show/1396
SUMMARY:Spin orbit interaction induced magnetic dynamics
DESCRIPTION:Featuring Luqiao Liu\, IBM\, Yorktown Heights\, NY\n\nPart of t
	he Biophysics/Condensed Matter Seminar Series.\n\nAbstract:\n\nControlling 
	magnetic orientation in a fast and energy-efficient way is both fundamental
	ly important and has profound technical implications. Conventional ways of 
	switching magnetic moment include employing magnetic fields from current-ca
	rrying coil and using the spin transfer torque effect from spin valve struc
	tures. Recent studies show that spin orbit interaction induced phenomena\, 
	such as the spin Hall effect and spin momentum locking in topological insul
	ators\, can provide effective mechanisms to generate spin currents and to c
	ontrol the orientation of nano-magnets. In this talk\, I will discuss vario
	us magnetic dynamics that can be excited using spin orbit interactions\, in
	cluding ferromagnetic resonance\, reversible magnetic switching and persist
	ent magnetic oscillations. Compared with conventional spin torque devices\,
	 a higher current-spin conversion efficiency and lower energy dissipation a
	re exhibited in those experiments. Besides\, I will also talk about experim
	ental approaches that can be utilized to identify the origin and quantify t
	he strength of those effects. With the information gained in those studies\
	, further improvement on the spin generation efficiency can be expected.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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