CMSP Journal Club

Interfaces of Transition Metal Oxides: A novel platform to study correlated electrons.

by Dr. Rajdeep Sensarma (TIFR)

Wednesday, April 17, 2013 from to (Asia/Kolkata)
at Colaba Campus ( A304 )
Description
I will give a general review of transition metal oxide interfaces and their novel properties, which have created a lot of excitement among physicists working on strongly interacting systems. e.g. the interface between two insulating materials can be metallic and interface between paramagnetic (or antiferromagnetic) materials can be ferromagnetic. The wide variety of phenomena has led to the idea of making "designer interfaces" having some desired property. More specifically, I would focus on a recent paper, by Sumilan Bannerjee and others, which tries to provide a model for magnetism at the LaAlO3 - SrTiO3 interface and predicts a spiral magnetic order in this case. 

References: 
1) S. Bannerjee, O. Erten and M. Randeria,  arXiv:1303.3275
2) H Y Hwang et al, Nature Materials, 11, 103 (2012)
3) J. Chakhalian, A. J. Millis and J. Rondinelli, Nature Materials 11, 92 (2012)