2016 CAP Congress / Congrès de l'ACP 2016

Spin Correlation Functions on Pyrochlore Lattice

14 Jun 2016, 19:48

2m

SITE Atrium (University of Ottawa)

Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition) Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) DCMMP Poster Session with beer / Session d'affiches, avec bière DPMCM

Speaker

chen wei (Memorial University of Newfoundland)

Description

Pyrochlores have the chemical formula A${}_2$B${}_2$O${}_7$ with A, B or both magnetic. It has corner-sharing tetrahedra in the structure, therefore, frustration phenomena naturally occurs in these systems. Because of the frustration, pyrochlore have many interesting properties, including the spin glass in Y${}_2$Mo${}_2$O${}_7$, spin liquid in Tb${}_2$Ti${}_2$O${}_7$, disordered spin ice in Ho${}_2$Ti${}_2$O${}_7$, and ordered spin ice in Tb${}_2$Sn${}_2$O${}_7$. I will focus on Tb${}_2$Ti${}_2$O${}_7$ particularly, use perturbation theory to find the spin correlation function between the nearest neighbour for the spin $1/2$ system.

Presentation materials

Spin Correlation Functions on Pyrochlore Lattice.pdf