Regensburg 2013 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 40: Poster Session Correlated Electrons
TT 40.40: Poster
Mittwoch, 13. März 2013, 15:00–19:00, Poster D
Magnetic Frustration in a Quantum Spin Chain: The Case of Linarite — •Britta Willenberg1,2, Markus Schäpers3, Kirrily Rule5, Anja Wolter3, Manfred Reehuis1, Bachir Ouladdiaf4, Hanjo Ryll1, Bastian Klemke1, Klaus Kiefer1, and Stefan Süllow2 — 1Helmholtz-Zentrum Berlin, Germany — 2IPKM, TU Braunschweig, Germany — 3IFW, Dresden, Germany — 4Institute Laue Langevin, Grenoble, France — 5ANSTO, Bragg institute, Australia
The natural mineral linarite PbCuSO4(OH)2 is a realization of a frustrated one dimensional spin chain. Residual interchain coupling leads to a magnetically ordered state for temperatures below TN=2.8 K with an unusual critical behavior at the transition. A rich magnetic phase diagram for an applied magnetic field along the chain direction was found [1] which we characterized by neutron diffraction and thermodynamic measurements.
This work has partially been supported by the DFG under contracts WO 1532/3-1 and SU229/10-1.
[1] B. Willenberg et al., Phys. Rev. Lett. 108, 117202 (2012)