15-20 June 2014
Laurentian University / Université Laurentienne
America/Toronto timezone
Welcome to the 2014 CAP Congress! / Bienvenue au congrès de l'ACP 2014!

Magnetic Properties of GeFe2O4 Spinel

18 Jun 2014, 19:00
2m
W-132 (Laurentian University / Université Laurentienne)

W-132

Laurentian University / Université Laurentienne

Sudbury, Ontario
Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition) Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) DCMMP Poster Session, with beer (4) / Session d'affiches DPMCM, avec bière (4)

Speaker

Jory Korobanik (Brock University)

Description

Geometrically frustrated magnetic materials have attracted scientific interest due to exotic low temperature states such as the spin ice compound Ho$_{2}$Ti$_{2}$O$_{7}$. In this material, spin disorder mimics the proton disorder found in water ice, which exhibits magnetic monopole-like excitations.$^{1}$ Frustration occurs when magnetic ions are arranged in geometries where exchange interactions can not be satisfied by all nearest neighbours. Typical structures that yield frustration are triangular in nature. Spinels (AB$_{2}$O$_{4}$) exhibit frustration when magnetic ions occupy the B sites.$^{2}$ This work seeks to determine and understand how magnetic dilution and applied pressure affect the magnetic ground state of GeFe$_{2}$O$_{4}$. [1]Harris et al, Phys. Rev. Lett. 79, 2554 (1997). [2]] J. Greedan, J. Mater. Chem.,11, 37-53 (2001).

Primary authors

Dr Fereidoon Razavi (Brock University) Jory Korobanik (Brock University)

Presentation Materials

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