UNIGE document Scientific Article
previous document  unige:36144  next document
add to browser collection
Title

Specific heat of the quantum Bragg glass

Authors
Schehr, G.
Le Doussal, P.
Published in Europhysics Letters. 2004, vol. 66, no. 4, p. 538-544
Abstract We study the thermodynamics of the vibrational modes of a lattice pinned by impurity disorder in the absence of topological defects (Bragg-glass phase). Using a replica variational method, we compute the specific heat Cv in the quantum regime and find Cv propto T3 at low temperatures in dimension three and two. The prefactor is controlled by the pinning length. The non-trivial cancellation of the linear term in Cv arises from the so-called marginality condition and has important consequences for other mean-field models.
Identifiers
Full text
Structures
Citation
(ISO format)
SCHEHR, G., GIAMARCHI, Thierry, LE DOUSSAL, P. Specific heat of the quantum Bragg glass. In: Europhysics Letters, 2004, vol. 66, n° 4, p. 538-544. https://archive-ouverte.unige.ch/unige:36144

104 hits

0 download

Update

Deposited on : 2014-04-29

Export document
Format :
Citation style :