Ph.D. student Reem Jaafar making

1. Quantum Magneto-Mechanical OscillationsEugene M. Chudnovsky, CUNY Herbert H Lehman College, DMR 0703639 Observation of coherent quantum oscillations of a spin of an individual magnetic molecule has been a great experimental challenge. Besides being of fundamental interest, it may generate applications of magnetic molecules as qubits – elements of quantum computers. In a recent Physical Review Letters article published June 5th, 2009, Lehman Ph.D. student Reem Jaafar and Prof. Eugene Chudnovsky have proposed to use a microcantilever to detect coherent magneto-mechanical oscillations due to quantum tunneling of a spin in a single magnetic molecule. The picture shows the geometry of the proposed experiment and the computed amplitude of oscillations as function of the tunnel splitting and frequency of the ac field.

2. Quantum Magneto-Mechanical OscillationsEugene M. Chudnovsky, CUNY Herbert H Lehman College, DMR 0703639 Ph. D. student Reem Jaafar has made presentations on her NSF sponsored research at the Winter Condensed Matter Conference in Aspen – Colorado (January 2009) and at the APS March Meeting in Pittsburgh (March 2009). Together with the PIs she is supervising students from the Bronx High School of Science and the High School for the American Studies in the Bronx, who have been involved in research on the NSF sponsored project through studies of physics concepts and computer programming related to the dynamics of molecular magnets. Ph.D. student Reem Jaafar making presentation on her NSF sponsored research at the CUNY Graduate Center