PhD Defenses

PHYSICS DISSERTATION DEFENSE: Matthew Sorensen

Date
Thu July 14th 2022, 2:00pm
Location
McCullough Rm 335
Stanford Student Observatory

Linda Cicero

Ph.D. Candidate:  Matthew Sorensen

Research Advisor: 
Ian Fisher

Date: July 14th, 2022

Time: 2:00 PM

Location: McCullough Rm 335


Zoom Link: 
https://stanford.zoom.us/j/95747093321

Zoom Password: email nickswan [at] stanford.edu (nickswan[at]stanford[dot]edu) for password

 

Title: 
Measurement of electric quadrupole and magnetic octupole susceptibilities of certain cubic Praseodymium-containing compounds

Abstract: 
Magnetic susceptibility measurements have long been used to illuminate properties of magnetic systems. The same susceptibility concepts can, however, also be defined for and expanded to other ordered states, such as the nematic state in iron-based superconductors and ferroquadrupolar orders in rare-earth intermetallics. Here, I will expand this technique to examine multi-dimensional quadrupolar and magnetic octupolar order parameters using the AC elastocaloric effect, and will present relevant measurement results for Pr(Ti,V)2Al20 systems where these order parameters are realized.