Scientific article
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English

Spectrum of a Magnetized Strong-Leg Quantum Spin Ladder

Published inPhysical review letters, vol. 111, no. 10, 107202
Publication date2013
Abstract

Inelastic neutron scattering is used to measure the spin excitation spectrum of the Heisenberg S = 1/2 ladder material (C7H10N)2CuBr4 in its entirety, both in the gapped spin liquid and the magnetic field- induced Tomonaga-Luttinger spin liquid regimes. A fundamental change of the spin dynamics is observed between these two regimes. Density matrix renormalization group calculations quantitatively reproduce and help understand the observed commensurate and incommensurate excitations. The results validate long-standing quantum field-theoretical predictions but also test the limits of that approach.

Research groups
Funding
  • Swiss National Science Foundation - Division II
Citation (ISO format)
SCHMIDIGER, D. et al. Spectrum of a Magnetized Strong-Leg Quantum Spin Ladder. In: Physical review letters, 2013, vol. 111, n° 10, p. 107202. doi: 10.1103/PhysRevLett.111.107202
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Article (Published version)
accessLevelPublic
Identifiers
Journal ISSN0031-9007
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Technical informations

Creation07/04/2014 14:42:00
First validation07/04/2014 14:42:00
Update time14/03/2023 21:06:02
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