凝態物理專題演講
Advanced Topics on Condensed Matter Physics
Department of Physics, NCU
Neutron scattering investigations of complex magnetic transitions in type-II multiferroic Co3TeO6
Speaker
Dr. Chi-Hung Lee (李其紘) (post-doctoral fellow)
Department of Physics, National Central University
Date 2015.10.15 (Thur)
Time 14:00
Place S4-625
Abstract:
Multiferroic is the term used to indicate the phenomenon where ferroelectricity and magnetic ordering coexist. For conventional (type-I) multiferroics the two types of order are associated with different atoms, with a weak interaction between the two order parameters. For type-II multiferroics, on the other hand, the ferroelectric displacements interact strongly with the magnetic order parameters. Understanding the nature of this coupling is a primary motivation for investigating these materials both for fundamental purposes and to enable the tailoring of materials properties and designing devices with the necessary magnetoelectric (ME) coupling for spintronics applications. In this study, I focused on the observations and explanations of a strong interplay between the order parameters of ferroelectricity and magnetic order in cobalt tellurate Co3TeO6. We find Co3TeO6 to be a type-II multiferroic.