Probing Thermal Phonons using Inelastic X-ray Scattering

Wednesday, November 9, 2022 - 3:00pm

SpeakerZhiting Tian, Cornell

Program Description:

Thermal phonons (THz lattice vibrations) are the major heat carriers in insulators and semiconductors. Their transport properties determine the lattice thermal conductivity. Understanding and engineering thermal conductivity directly impact a wide array of applications, including thermoelectric energy conversion, microelectronics cooling, and hot-carrier solar cells. Using inelastic x-ray scattering, my group has been probing thermal phonons in inorganic, organic, and hybrid materials. In this talk, I will share a few examples where our measurements helped push the extremes of heat conduction or answer long-standing questions in the heat transfer community.

Bio-Sketch:

Dr. Zhiting Tian is an Associate Professor of the Sibley School of Mechanical and Aerospace Engineering at Cornell University. Zhiting obtained her Ph.D. in Mechanical Engineering at MIT in 2014. Zhiting’s awards and honors include Fellow of the American Society of Mechanical Engineers (ASME), NASA Early Stage Innovations Award, Air Force of Scientific Research (AFOSR) Young Investigator Award, Office of Naval Research (ONR) Young Investigator Award, National Science Foundation (NSF) CAREER Award, ACS Petroleum Research Fund Doctoral New Investigator Award, 3M Non-Tenured Faculty Award, and ACS Polymeric Materials Science and Engineering (PMSE) Young Investigator Award. Zhiting serves as an Associate Editor of the Journal of Applied Physics.

Probing Thermal Phonons using Inelastic X-ray Scattering
Find Stanford Synchrotron Radiation Lightsource on TwitterFind Stanford Synchrotron Radiation Lightsource on YouTubeFind Stanford Synchrotron Radiation Lightsource on Flickr