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SUMMARY:CMSP Seminar (Atomistic Simulation Seminar Series): Spin Polarizat
 ion from Circularly Polarized Light Induced Charge Transfer
DTSTART;VALUE=DATE-TIME:20260625T090000Z
DTEND;VALUE=DATE-TIME:20260625T100000Z
DTSTAMP;VALUE=DATE-TIME:20260614T083237Z
UID:indico-event-11365@ictp.it
DESCRIPTION:\n	Sindhana Pannir-Sivajothi\n	(University of California\, Ber
 keley)\n\n \nAbstract:\n\n	The chirality-induced spin selectivity (CISS) 
 effect\, where electron transmission through chiral molecules is spin-depe
 ndent\, has been observed experimentally in several systems. CISS is typic
 ally attributed to chirality defined by nuclear geometry. In this talk\, I
  will present a mechanism for generating spin polarization via photoinduce
 d electron transfer in an achiral donor-acceptor complex under circularly 
 polarized light excitation. Here\, the chirality arises from the driven el
 ectronic degrees of freedom\, distinct from that of static nuclear geometr
 y. I will focus on the energetic and symmetry requirements for this spin p
 olarization\, demonstrating the effect in a simple model of a metalloporph
 yrin complex with an axial acceptor ligand using quantum mechanical rate t
 heories and numerical simulations. The resultant spin polarization increas
 es with the spin-orbit coupling strength and is transient\, with a lifetim
 e determined by the vibronic coupling.\n	 \n\n	Zoom registartion link:\n\
 n	https://zoom.us/meeting/register/1Q_n5qKWTiyAWoyeH2hvpQ\n	 \n\n\n//indi
 co.ictp.it/event/11365/
LOCATION:Euler Lecture Hall (Leonardo Building\, terrace level) and via Zo
 om
URL://indico.ictp.it/event/11365/
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