Conveners
T3-1 Geometrically Frustrated Materials (DCMMP) | Matériaux géométriquement frustrés (DPMCM)
- Jeff Quillam (Université de Sherbrooke)
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Takashi Imai (McMaster University)30/05/2017, 13:30Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)Invited Speaker / Conférencier invité
Herbertsmithite ZnCu_(3)OH_(6)Cl_(2) is a mineral material that hosts a kagome plane consisting of Cu2+ ions with spin S = 1/2. We will discuss our single crystal NMR measurements to probe the local spin susceptibility (based on the NMR frequency shift), low frequency spin fluctuations (based on the spin-lattice relaxation rate 1/T_1), and the effects of defect Cu2+ spins occupying the Zn2+...
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Jeonghun Lee (Simon Fraser University)30/05/2017, 14:00Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)CLOSED - Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Title: Thermodynamic and transport properties of single crystal YbNi$_4$Cd
Author: J. Lee, H. Park, E. Mun
Affiliation: Department of Physics, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6
Single crystals of YbNi$_4$Cd and LuNi$_4$Cd were grown via solution growth techniques. We have studied the thermal, magnetic, and electrical properties of the intermetallic system...
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Mr Andrew Way (Memorial University of Newfoundland)30/05/2017, 14:15Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)CLOSED - Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Results are presented on analytic and computational analyses of the spin states associated with ABC stacked kagome planes of magnetic ions with only long-range dipole-dipole interactions. Extending previous work on the 2D kagome system, where six-fold discrete degeneracy of the ground state was revealed [1], we show that the 3D FCC kagome lattice exhibits a continuous degeneracy characterized...
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Mr Ming Li (Memorial University of Newfoundland)30/05/2017, 14:30Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)CLOSED - Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
In a variety of frustrated triangular lattice antiferromagnets with easy-plane anisotropy, it has been shown that a magnetization plateau is produced at $1/3$ of the saturation value for a magnetic field parallel to the basal plane.
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This magnetization plateau is associated with a collinear up-up-down state where two spins are parallel to the field while the third one is antiparallel.
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Patrick Clancy (Trent University)30/05/2017, 14:45Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)CLOSED - Oral (Non-Student) / orale (non-étudiant)
The Verwey transition is a phase transition in which the development of charge order results in a rapid increase in electrical resistivity. This transition was first observed in magnetite (Fe3O4), which undergoes a metal-insulator transition at T ~ 125 K, driven by the formation of complex Fe2+/Fe3+ order. Recently, it was proposed that a similar type of transition may occur in Pb3Rh7O15, a...
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Prof. Yong-Baek KimCondensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)Invited Speaker / Conférencier invité
We discuss recent theoretical progress in understanding possible quantum spin liquid phases and their experimental signatures in frustrated quantum magnets with strong spin-orbit coupling. These developments are directly motivated by very recent experiments on α-RuCl3 and pressurized β-Li2IrO3. We explain how various bond-dependent interactions, such as the Kitaev interaction, arise in such...
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