Ruegg, C;
Kiefer, K;
Thielemann, B;
McMorrow, DF;
Zapf, V;
Normand, B;
Zvonarev, MB;
... Kramer, KW; + view all
(2008)
Thermodynamics of the Spin Luttinger Liquid in a Model Ladder Material.
PHYS REV LETT
, 101
(24)
, Article 247202. 10.1103/PhysRevLett.101.247202.
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Abstract
The phase diagram in temperature and magnetic field of the metal-organic, two-leg, spin-ladder compound (C5H12N)(2)CuBr4 is studied by measurements of the specific heat and the magnetocaloric effect. We demonstrate the presence of an extended spin Luttinger-liquid phase between two field-induced quantum critical points and over a broad range of temperature. Based on an ideal spin-ladder Hamiltonian, comprehensive numerical modeling of the ladder specific heat yields excellent quantitative agreement with the experimental data across the entire phase diagram.
| Type: | Article |
|---|---|
| Title: | Thermodynamics of the Spin Luttinger Liquid in a Model Ladder Material |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.101.247202 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.101.247202 |
| Language: | English |
| Additional information: | © 2008 The American Physical Society |
| Keywords: | BOSE-EINSTEIN CONDENSATION, MAGNETIC-FIELD, HEISENBERG LADDER, SYSTEM, CHAIN |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/168494 |
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