题目：Exploring Materials Universes: the case of an exotic insulator that behaves like a metal

报告人：Suchitra Sebastian

                 剑桥大学教授

时间：2016年11月1日上午10:30

地点：国家脉冲强磁场科学中心B206

报告摘要：

Materials comprise trillions of electrons that interact with each other to create a diversity of physical behaviours. We owe much of modern technology - from powerful computing to the marvels of communication - to discoveries of new types of collective electron behaviours in materials. Such discoveries, however, are often serendipitous, given that materials can be thought of as complex universes teeming with vast numbers of electrons, making their behaviours challenging to understand or predict. A question we are often confronted with is how to make progress in discovering novel collective electron behaviours akin to new universes. I will discuss possible approaches to increasing the odds of making discoveries, with examples from cases such as new superconductors and new types of dual metal-insulating materials. In particular, I will discuss the surprising case of the Kondo insulator SmB6 in which we have used high magnetic fields to observe a Fermi surface characteristic of a metal. Potential models will be discussed in the context of our findings.

报告人简介：

Suchitra Sebastian is University Lecturer in Physics at the University of Cambridge. She holds an MS and PhD in Applied Physics from Stanford University, and an MBA from the Indian Institute of Management (Ahmedabad). Suchitra was named as one of thirty 'Exceptional Young Scientists' by the World Economic Forum in 2013 and one of the top ten 'Next big names in Physics' by the Financial Times. She received the L'Oreal-UNESCO fellowship for women in science in 2013, among other awards including the Lee-Osheroff-Richardson Prize (2007); Young Scientist Medal in Magnetism (2012); Moseley Medal (2012); Philip Leverhulme Prize (2015); and Brian Pippard Prize (2015).

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