Critical properties and Bose Einstein Condensation in dimer spin systems

Edmond Orignac 1 Roberta Citro 2 Thierry Giamarchi 3
1 Phys-ENS - Laboratoire de Physique de l'ENS Lyon
2 Dipartamento di Fisica "E. R. Caianiello"
3 Departement de Physique de la Matiere Condensee Section de Physique
Abstract : We analyze the spin relaxation time 1/T_1 for a system made of weakly coupled one dimensional ladders.This system allows to probe the dimensional crossover between a Luttinger liquid and a Bose-Einstein condensateof magnons. We obtain the temperature dependence of 1/T_1 in the various dimensional regimes, and discuss the experimental consequences.
Keywords : Bose-Einstein Condensation Nuclear Magnetic Resonance spin gap field induced magnetic ordering
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Journal articles
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https://hal-ens-lyon.archives-ouvertes.fr/ensl-00142911
Contributor : Edmond Orignac <>
Submitted on : Monday, April 23, 2007 - 3:43:51 PM
Last modification on : Thursday, November 21, 2019 - 2:39:23 AM

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Edmond Orignac, Roberta Citro, Thierry Giamarchi. Critical properties and Bose Einstein Condensation in dimer spin systems. Physical Review B : Condensed matter and materials physics, American Physical Society, 2007, 75 (14), pp.140403. ⟨10.1103/PhysRevB.75.140403⟩. ⟨ensl-00142911⟩

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