Seminar – Turning on the heat with spins and their transport across interfaces

On Monday, April 10th 2023, we have the pleasure to welcome in SPINTEC Hari Srikanth Professor at University of South Florida, He will give us a seminar at 14:00, entitled :

Turning on the heat with spins and their transport across interfaces

Place: SPINTEC Seminar, CEA Building 10.05 auditorium 445 (access needs authorization *)
skype link : https://webconf.cea.fr/ioan-lucian.prejbeanu/C89D5FFJ
if this link does not work see below (**)

Abstract : Spin-heat coupling is important from a fundamental perspective as well as for many thermoelectric and thermomagnetic applications. Can we generate local heat with magnetic nanoparticles or ‘super spins’? What about manipulation of spin transport using thermal gradients? In this talk, I will provide some insights into these questions based on our research in a number of systems ranging from nanostructures to heterostructures including anisotropic nanoparticles, compensated ferrimagnets, topological systems, spin gapless semiconductors, interfaces of graphene, 2D TMD materials on ferrites and garnets. The common theme is our ability to sensitively measure and tune the effective intrinsic and interfacial magnetic anisotropy in a large class of magnetic materials including bulk, nanoparticle assemblies and thin film heterostructures. I will describe how we combine conventional and relatively unconventional experimental techniques like magnetometry, RF transverse susceptibility, magnetocaloric effect, anomalous Nernst effect (ANE), spin Seebeck effect (SSE), FMR spin pumping (FMR-SP) to probe the fundamental physics of spin dynamics, spin-heat coupling, thermal spin transport across interfaces. Some recent results on our ongoing projects including core-shell and anisotropic nanoparticles, influence of magnetic anisotropy on spin Seebeck effect (SSE) and anomalous Nernst effect (ANE), universal scaling of SSE in compensated ferrimagnets, estimation of magnon propagation length will be discussed.

Biography : Distinguished University Professor Department of Physics, University of South Florida, Tampa FL, USA, Alexander von Humboldt Research Awardee & Visiting Professor Fakultät für Physik, University of Duisburg-Essen, Germany. Hari Srikanth is a Distinguished University Professor at the University of South Florida. He received his Ph.D. in experimental condensed matter physics from the Indian Institute of Science, Bangalore and has been at USF since 2000 where he directs the Functional Materials Laboratory. His research spans a wide range of topics in magnetism and magnetic materials. He has around 300 publications and has given over 200 invited talks around the world. In 2019, he was an IEEE Magnetics Society Distinguished Lecturer. Hari is a Fellow of the American Physical Society, Fellow of the Institute of Physics and a Senior Member of IEEE. He currently serves as an Associate Editor for Physical Review B and Editor for Journal of Alloys and Compounds. Hari has been closely involved with the MMM and INTERMAG conferences for more than 18 years serving as Publication Editor, Publication Chair and on program committees. He is a recipient of an Alexander von Humboldt Research Award and is affiliated with University of Duisburg-Essen during his AvH visits to Europe. Hari also received a Fulbright Scholar Award to be a visiting professor at Nanyang Technological University in Singapore and is a visiting professor at IIT Bombay. Hari is a symposium co-organizer for ICMAT 2023 in Singapore and focus topic co-organizer for ICM 2024 in Italy.

(*) Persons who do not have a CEA pass must request an entry authorization sufficiently in advance, before April 02th at admin.spintec@cea.fr

(**) IF THE LINK DOES NOT WORK,
try with skype web App : https://webconf.cea.fr/ioan-lucian.prejbeanu/C89D5FFJ?sl=1
or by phone +33 1 69 35 55 10 conf ID : 5909422


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