Quantum magnetism: Proceedings of the NATO Advanced Study Institute on Quantum Magnetism, Les Houches, France, 6-23 June 2006

Magnetism is a somewhat peculiar research field. It clearly has a quantum-mechanical basis – the microsopic exchange interactions arise entirely from the exclusion principle, in conjunction with respulsive interactions between electrons. And yet until recently the vast majority of magnetism researchers and users of magnetic phenomena around the world paid no attention to these quantum-mechanical roots. Thus, eg., the huge ($400 billion per annum) industry which manufactures hard discs, and other components in the information technology sector, depends entirely on room-temperature properties of magnets - yet at the macroscopic or mesoscopic scales of interest to this industry, room-temperaturemagnets behave entirely classically. For the PITP/Les Houches school a numberof topics of prime interest were selected, as follows: (1) Magnetism at the Microscopic Scale. (2) Exotic Order in Quantum Magnets. (3) Disordered Magnets.(4) Quantum Nanomagnetism. (5) Large-Scale Quantum Phenomena In Magnets. Thisbook, published after a NATO school at Les Houches benefited from the lectures of most prominent world physicists Covers a broad spectrum of modern subjects in Quantum Magnetism, with connections to nanophysics, quantum computation INDICE: A Gentle Introduction to the Functional Renormalization Group: theKondo Effect in Quantum Dots.- Halfvortices in Flat Nanomagnets.- Spin Structure and Dynamical Magnetic Response of Spin-Orbital Polarons in Lightly Doped Cobaltates.- Quantum Corrections to the Ising Interactions in LiY1-xHoxF4.- Spin-orbital-lattice Physics in a Ca-based Ruthenates.- Local Moment Approach toMulti-orbital Anderson and Hubbard Models.- High Field Level Crossing Studieson Spin Dimers in the Low Dimensional Quantum Spin System Na2T2(C2O4)3(H2O)2 with T Ni,Co,Fe,Mn.- Quantum Nanomagnets and Nuclear Spins: an Overview.- Quantum Dimer Models and Exotic Orders.- Imaging Transverse Electron Focusing in Semiconducting Heterostructures with Spin-orbit Coupling.- Spectroscopic Analysis of Finite Size Effects around a Kondo Quantum Dot.- Effective Magnus Force on a Magnetic Vortex.- Anisotropic Exchange in Spin Chains.- A Review of Bose-Einstein Condensation in Certain Quantum Magnets Containing Cu and Ni.

• ISBN: 978-1-4020-8511-6
• Editorial: Springer
• Encuadernacion: Rústica
• Páginas: 239
• Fecha Publicación: 01/06/2008
• Nº Volúmenes: 1
• Idioma: Inglés