July 29, 2010 - 11:00am to 12:00pm

Nuclear Spin Polarization and Spin Entanglement in Photoexcited Triplet States of Organic Molecules

Gerd Kothe, Professor
McMillen 311

Event Description

Abstract: Light-induced nuclear spin magnetization in excited triplet states of organic molecules has been detected using pulsed EPR and NMR techniques. Analysis suggests that immediately after the intersystem crossing electron and nuclear spins are aligned along a molecular axis. The new mechanism acts as a source of oscillatory nuclear spin polarization which gives rise to large signal enhancement in NMR.