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Meetings/Workshops on Condensed Matter Physics and Materials in Brazil

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1.IIP Workshop on Frustrated Magnetism — Frustrated Magnetism: From Spin ice to Kagome Planes
Dates	11 Dec 2011 → 17 Dec 2011	[ID=428986]
Location	Natal, Brazil
Abstract	Over the last fifteen years, chemists, material scientists and physicists alike, have studied materials with frustrated interactions in an attempt to find and understand novel states of matter. In this regard, geometrically frustrated magnetic systems have proved to be a lucrative testing ground for fluctuation driven phenomena. In particular considerable theoretical progress has been made in the understanding of quantum spin liquids and their surprisingly rich classical analogues, continuous and discrete collective paramagnets. In these systems a key element is the local constraints, imposed on the ground state, leading to hidden correlations, topological constraints and the possibility of hidden topological order. In particular two geometrically frustrated structures have been at the heart of these developments; the two dimensional kagomé lattice and its three dimensional analogue, the pyrochlore lattice. These systems share a common phenomenon of a highly degenerate classical ground state manifold of states with extensive zero point entropy. Adding quantum fluctuations leads to structured quantum liquids that are at the heart of present theoretical study. Classical systems are open to order by disorder phenomena and unconventional ordering transitions in the presence of perturbations. This workshop, Frustrated Magnets: From Spin Ice to Kagomé Planes is motivated by the rich physics emerging from kagomé and pyrochlore magnets. Leading theorists and experimentalists in physics, chemistry and material science will gather in Natal to give lectures and research talks that will introduce the topic, review some seminal work and then concentrate on questions for future research, such as how to relate the physics developed so far, in the classical domain, to quantum systems, how to incorporate disorder, how to develop towards metallic systems, with reference to relevant long-range interactions such as RKKY. Although this will be a theory driven workshop, there will be an extensive input from experimental groups.
Topics	1. Monopole physics in spin ice 2. Kagomé antiferromagnets 3. Quantum spin liquids 4. Artificial spin ice 5. Metallic and itinerant systems
Weblink	http://www.ens-lyon.fr/FM_Brazil/spin-ice/Home.html
Contact	Email: FMBrazil2011@gmail.com
Related subject(s)	Computational Physics and Numerical Simulation

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Last updated: 30 August 2011