Low Field Microwave Absorption and Novel Magnetism*

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Relatore: 

Prof. V. Srinivasu VALLABHAPURAPU

Relatore info: 

Department of Physics, University of South Africa (UNISA), Johannesburg

Relatore email: 
vallavs @ unisa.ac.za

Low field microwave absorption (LFMA) was first observed in Cuprate high-Tc Superconductors. Later LFMA was reported in half metallic manganites, then followed by some magnetic materials. The fact that LFMA is not observable in every magnetic material makes this phenomenon intriguing. Examples for LFMA in ZnO system arre given, then LFMA in multiferroic BiFO3 sytem is described. We then show our preliminary results from BiFe0.5Mn0.5O3 system from Parma.

The remaining part of my talk is about a brief description of  other activities of my group at UNISA:

1. LFMA in Iron Pnictide Superconductors and

2. Fabrication of small Josephson Junctions.

 

*This talk is in the frame of the MAECI bilateral project n. ZA18MO03  of the Italy-South Africa Joint Research Mobility Programme (ISARP) 2018-2020

Allegato: 
Sede manifestazione: 
Sala A
Referente organizzatore: 
Dr. Davide Delmonte
Inizio data: 
04/10/2018
Ora data: 
09:30
Fine data: 
04/10/18
Ora data: 
11:30