Dr. Debangsu Roy

Assistant Professor

Department of Physics


Debangsu Roy is an Assistant Professor at the Department of Physics at IIT Ropar. He received his MS and PhD from Indian Insitute of Science, Bangalore, India. During his PhD at the Department of Physics at the Indian Institute of Science, India, he investigated the oxide exchange spring behavior in bulk as well as thin films. The realization of the exchange spring behavior as well as the improvement of the magnetic energy product employing exchange spring concept in oxide system has been demonstrated successfully during his doctoral work. As a postdoctoral associate at Lior Klein’s Lab at Bar Ilan Univeristy, Israel, Dr. Roy worked on the devices made of itinerant  ferromagnet SrRuO3.  It is found that the Hall effect resistivity in ultra clean SrRuO3 cannot be described as a sum of the ordinary and the anomalous Hall effect;  both the mechanism are effectively intermixed which could be linked to the predicted existence of Weyl nodes in SrRuO3. In addition, the effect of applied magnetic fields on the interface resistance of the domain walls as well as the domain wall depinning in SrRuO3 has also been investigated. During his second postdoctoral stint in Prof. Andrew Kent’s group in New York University, Dr. Roy investigated the spin transport and spin transfer mechanism in AFM insulators using DC, high frequency transport and X-ray spectroscopy with a goal to probe the AFM order in these insulators.  

Areas of Research

Spintronics with Insulators


2008-2013: Ph.D., Indian Institute of Science, Bangalore, India.
2005-2008: M.S., Physics, Indian Institute of Science, Bangalore, India.
2002-2005: B.Sc., Physics (Major), Calcutta University.

Work Experience

August, 2018-Present : Assistant Professor, Department of Physics, IIT Ropar, India.
Oct, 2016-August, 2018 : Postdoctoral Associate, New York University, USA.
November, 2013-July,2016: Postdoctoral Research Scholar, Bar Ilan University, Israel.

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