Magnetic Quantum Materials: An Exploration of Growth Strategies for Unleashing Unprecedented Topological Response and Functional Properties (10/04/23)

Speaker & Affiliation:

Dr. Chandan De
The Pennsylvania State University, State College, PA 16802

When ?

10th April, 2023 (Monday), 2.30 pm (IST)

Venue

KPA Auditorium, Department of Materials Engineering

Abstract:

The synthesis of bulk crystals, thin films, and nanostructures is a crucial aspect of advancing the frontiers of quantum materials. In this research seminar, I will provide a synthesis perspective on how the discovery of quantum materials occurs and how their exotic properties are encountered. Firstly, I will introduce a general paradigm of bulk crystal growth of quantum materials using various techniques and how bulk crystal growers strategically encounter exotic phenomena, exploiting materials composition, structure, symmetry, and topology. Then, I will discuss in detail my recent discovery of colossal angular magneto resistance in a ferrimagnetic nodal line semiconductor Mn3Si2Te6, with an extremely large angular response of magnetotransport (~1010). I will also briefly discuss my recent discovery of a new material MnCuSiTe3, showing room temperature ferroelectricity using Piezo Force Microscopy and low-temperature magnetic ordering. Finally, I will conclude my talk by discussing recent trends and future directions in magnetic quantum materials/2D materials.

Speaker Bio:

Chandan De is a postdoctoral scholar currently affiliated with the 2D Crystal Consortium (under NSF) at Materials Research Institute, The Pennsylvania State University. He completed his PhD and Master’s degrees in Materials Science at Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) in India, where he also briefly worked as a postdoctoral research associate. Between 2018 and 2021, he was a postdoctoral scholar at the IBS Center for Artificial Low-Dimensional Electronic Systems, Laboratory of Pohang Emergent Materials in South Korea. His research interests include growing single crystals of quantum materials using various techniques to understand their tunable physical phenomena including magnetotransport, magnetism, ferroelectric, piezoelectric etc. He is also interested in studying electronic structures using angle-resolved photoemission spectroscopy. Chandan De has published a total of 17 scholarly publications, including 11 as first author, with an h-index of 11 and 419 citations on Google Scholar.