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New materials for energy and information storage and transmission
Speaker: Prof. Satyabrata Patnaik, School of Physical Sciences, Jawaharlal Nehru University, New Delhi.

Abstract: The discovery of Dirac and Weyl semimetals (WSM) has brought forth the
condensed matter realization of Dirac/Weyl fermions, which were previously theorized
as low energy excitations in high energy particle physics. In the recent past we have
witnessed some exceptional developments in chalcogenide and pnictide materials that
have been identified with such properties. Several age-old industrial materials based on
selenides, tellurides, borides and oxides have come the fore that promise to usher-in
new understanding of correlated electronic systems. Towards material implementation
of quantum computation, we shall review electromagnetic properties of topological
superconductor Sr x Bi 2 Se 3 and study its pairing mechanism. Several transition metal
mono-pnictides are under intense investigation for understanding properties of
inversion-symmetry broken Weyl semimetals. Non-trivial Berry phase and chirality are
important markers for characterizing topological aspects of Weyl semimetals. We shall
discuss aspects of exceptional magneto-resistance seen in the normal state of these
topological semimetals. In specific, we shall summarize potential applications with
regard to material properties of following systems
a) Single stage cryocooled superconducting magnets for MRI (MgB 2)
b) Cables for lossless energy transmission and storage (Bi 2 Sr 2 Ca 2 Cu 3 O 10)
c) Materials to implement Quantum Computation (Sr intercalated Bi 2 Se 3)
d) Better read-heads for magnetic storage devices (NbP, TaSb 2)
e) Magnetic Nano-particles for Cancer therapy (Co+CoO EB)
f) Thermoelectric materials for waste heat scavenging (ZrNiPb)
g) Next generation piezo devices using multiferroic materials (Y 2 CoMnO 6) and
h) New ideas on Solar energy and battery applications.

Jul 24, 2021 03:00 PM in India

Webinar is over, you cannot register now. If you have any questions, please contact Webinar host: Prof. Amit Chakraborty, Dept. of Physics, SRM-AP.