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Charge and spin density waves (CROSBI ID 741223)

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• Obrazovni materijal (nedefinirano )

Bjeliš, Aleksa Charge and spin density waves / Reymond, M. D. (ur.). Lausanne: Ecole Polytechnique Federale de Lausanne, 1999. 134..

Podaci o odgovornosti

Bjeliš, Aleksa

Reymond, M. D.

engleski

Charge and spin density waves

The present series of lectures is a retrospective of most important parts of the huge knowledge accumulated in the field of charge and spin density waves in the last few decades. The lecturer's choice of topics was oriented towards open and sometimes controversial aspects, with the particular emphasis on the questions which might be of fundamental importance in the wider sense. In the first lecture we consider the cohesion and chain structures of the best known families of quasi one-dimensional materials. In the second lecture we start from the strictly one-dimensional Hamiltonian for the conducting band of interacting electrons, attempting to discuss the electron-electron and electron-hole correlations, with usual characteristic energy scales of 10 – 100 meV. In the first part of the third lecture we come back to particular families, and discuss the more or less well established theoretical scenarios for the stabilization of the three-dimensional long range DW orders in each of them. The characteristic energy scales involved in these orderings are 1 – 10 meV. The second part of the lecture is devoted to the description of fundamental properties of CDW condensate under idealized conditions, the corresponding energy scales being even smaller, below 1 meV. The fourth lecture starts with the discussion of the collective CDW dynamics in real conditions, namely with different types of pinning mechanisms and with the Coulomb forces induced by CDW deformations taken into account. The rest of the lecture is devoted to SDWs in Bechgaard salts, in particular to the orbital and Pauli effects of the external magnetic fields.

charge density waves; spin density waves; one-dimensional fermions; collective transport

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Podaci o izdanju

Lausanne: Ecole Polytechnique Federale de Lausanne

134

1999.

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objavljeno

Povezanost rada

Fizika