Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session U34: Organic Electronics II: Charge Transport and Theory
2:30 PM–5:30 PM,
Thursday, March 5, 2020
Room: 506
Sponsoring
Units:
DPOLY FIAP DMP
Chair: Stephanie Lee, Stevens Inst of Tech
Abstract: U34.00006 : Photospintronics- Light-controlled spin transport in hybrid chiral oligopeptide-nanoparticle structures*
View Presentation Abstract
Presenter:
Rupshali Roy
(Indian Institute of Engineering Science and Technology, Shibpur)
Author:
Rupshali Roy
(Indian Institute of Engineering Science and Technology, Shibpur)
We began building a device which would aid in furthering research on spintronics. It consists of an Si substrate, plated with a layer of Ni, a ferromagnetic material, further coated by a layer of gold, as the base layer. In the hybrid system studied therein. Helical chiral molecules of cysteine hydrochloride were attached on one end to the base layer mentioned above, and on the other end to a MoS2 thin film.
The chiral molecules taken in this case were right helical structures. When right circularly polarized light is shined on the device, electron hole pairs are generated and those electrons with right handed spin are excited and are selected to move through the chiral molecules.Vice versa occurs when the chirality or polarisation is reversed.
*Funded by the Bose Inst. (Autonomous Body under DST,GOI), Kolkata and Rajabazar Science College(under the University of Calcutta).
Collaborated with A. Singha and S.Masanta from the Bose Inst.
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