Luttinger liquid physics in the spin ladder material CuBr4(C5H12N)2

M. Klanjšek 1 H. Mayaffre 2 C. Berthier 3 M. Horvatić 3 B. Chiari 4 O. Piovesana 4 P. Bouillot 5 C. Kollath 6 Edmond Orignac 7 R. Citro 8 T. Giamarchi 5
1 Institut "Jožef Stefan" [Ljubljana]
2 LSP - Laboratoire de Spectrométrie Physique
3 LNCMI - Laboratoire national des champs magnétiques intenses - Grenoble
4 Dipartimento di Chimica [Perugia]
5 DPMC-MaNEP, University of Geneva
6 CPHT - Centre de Physique Théorique [Palaiseau]
7 Phys-ENS - Laboratoire de Physique de l'ENS Lyon
8 Dipartimento di Fisica "E. R. Caianiello" and CNISM
Abstract : We present a 14N nuclear magnetic resonance study of a single crystal of CuBr4(C5H12N)2 consisting of weakly coupled spin-1/2 Heisenberg antiferromagnetic ladders. When placed in a magnetic field, such a ladder is theoretically predicted to exhibit a quantum critical Luttinger liquid (LL) behaviour in the gapless phase, i.e. between the two critical fields. Treating ladders as LLs and interaction between them as a perturbation, we are indeed able to fully account for (i) the spin dynamics accessed by measuring the spin–lattice relaxation rate equation image, and for (ii) the phase transition to a 3D ordered phase occurring below 110 mK due to the weak interladder coupling.
Keywords : spin ladder Luttinger liquid NMR field induced phase transitions
Type de document :
Communication dans un congrès
Frank Steglich, Oliver Stockert, Steffen Wirth. Quantum Criticality and Novel Phases (QCNP 2009), Aug 2009, Dresden, Germany. WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, pp.656, 2010, 〈10.1002/pssb.200983048〉
Liste complète des métadonnées
https://hal-ens-lyon.archives-ouvertes.fr/ensl-00565064
Contributeur : Edmond Orignac <>
Soumis le : jeudi 10 février 2011 - 20:04:47
Dernière modification le : mardi 11 septembre 2018 - 11:00:02

Lien texte intégral

istex

Identifiants

Collections

ENS-LYON | LIPHY | UGA | PARISTECH | X | X-CPHT | X-DEP-PHYS | UNIV-TLSE3 | UNIV-LYON1

Citation

M. Klanjšek, H. Mayaffre, C. Berthier, M. Horvatić, B. Chiari, et al.. Luttinger liquid physics in the spin ladder material CuBr4(C5H12N)2. Frank Steglich, Oliver Stockert, Steffen Wirth. Quantum Criticality and Novel Phases (QCNP 2009), Aug 2009, Dresden, Germany. WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, pp.656, 2010, 〈10.1002/pssb.200983048〉. 〈ensl-00565064〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

268

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD