题目：High Magnetic Fields for Multiferroics and Complex Functional Spin Systems

报告人：Vivien Zapf

                 美国洛斯阿拉莫斯国家实验室科学家

时间：2016年10月28日上午10:30

地点：国家脉冲强磁场科学中心B206

报告摘要：

I will review the need for new multifunctional magnetic materials, in particular insulating magnetoelectrics for low-power sensing, computing, and frequency devices. Complex magnetic spin systems are a route to creating magnetoelectric behavior by tuning the symmetry of the magnetism and creating key magnetoelectric coupling mechanisms. Understanding complex magnetic spin systems and how they couple to ferroelectricity in turn requires high magnetic fields and fast magnetic fields. High magnetic fields allows us to tune and explore materials to the extreme limits of their phase diagram and thereby distinguish among multiple models. Fast magnetic fields provide record sensitivity in magnetoelectric measurements as well as access to dynamic behavior. The combination of neutron diffraction, high and fast magnetic fields and theory allow us to understand complex spin systems and their multifunctionality. I will also discuss new routes to multiferroic behavior in metal-organic systems that go beyond traditional ferromagnetism and ferroelectricity.

报告人简介：

Educational Background

Ph.D. in Physics, University of California at San Diego, San Diego, CA, 2003

Advisor: Prof. Brian Maple, Experimental Condensed Matter Science

M.S. in Physics, University of California at San Diego, 2000

B.S. in Physics with Computer Science, summa cum laude, Harvey Mudd College, Claremont, CA, 1997

Research Interests

Multifunctional and hard magnets

Quantum Magnetism

Inorganic oxide and metal-organic materials

Professional Experience

National High Magnetic Field Lab, Los Alamos National Lab, Los Alamos, NM

[Scientific Staff Member 2006-present]

[Postdoctoral Fellow 2004-2006]

[Postdoctoral Fellow, California Institute of Technology, Pasadena, CA, 2003-2004]

Awards, Honors, and Service

2010 Lee-Osheroff-Richardson Prize (2010)

Director's Funded Post-doctoral Fellowship, LANL (2004)

Millikan Post-doctoral Prize Fellowship (2003)

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