题目：Complete crystal-orientation control of FeCo nanowires for use in nanoscale magnetic resonance imaging

报告人：Ye Tao

时间：2017年12月29日上午10：00

地点：武汉大学动力与机械学院报告厅

Abstract 

    The development of strong nanomagnetic gradient sources is important for of magnetic resonance force microscopy (MRFM)  and force-based detection of magnetic moments . These techniques have the potential to significantly advance material science and structural biology research by providing direct 3D, atomic-resolution structural information on a single-copy of heterogeneous nanoscale matter. Access to highly magnetic tips with precise, nanometer-resolution controls of tip geometry and material composition would further advance the technique by enabling closer approach of the gradient source to the sample. One approach to controllable tip geometries is the bottom-up growth of single-crystalline magnetic nanowires . However, the production of nanowire materials, uniformly oriented along any arbitrarily chosen crystal orientation, is an important, yet unsolved, problemin material science . A practical need for MRFM has thus led us to devise a generalizable solution to this material science problem, using FeCo as the demonstration material system.

About the lecturer

    Ye Tao is a principal investigator at the Rowland Institute at Harvard. He currently spearheads nanoscale device engineering, materials synthesis, andinstrumentation development to push magnetic resonance imaging (MRI) towards atomic resolutions.Tao received doctoral training in experimental solid-state physics at ETH Zurich and holds a Ph.D. degree in physical chemistry from MIT in 2015, supported by a MIT Presidential Fellowship. Prior to that, he had become well-versed in physical organic chemistry and structural molecular biologyat Harvard University. His undergraduate research resulting in a publication in Science and a Hoops Prize Award for his thesis, which was praised by advisor Prof. Eric Jacobsen as ‘outstanding’ even among PhD theses from the group.