Seminar über die Physik der kondensierten Materie (SFB/TRR173 Spin+X und SFB/TR288 Kolloquium, TopDyn-Seminar)
May 19, 2016 at 2 p.m. in MAINZ-Seminarraum, Staudinger Weg 9, 03-122Univ-Prof. Dr. Jure Demsar
Univ.-Prof. Dr. Hans-Joachim Elmers
Univ.-Prof. Dr. Mathias Kläui
Univ.-Prof. Dr. Thomas Palberg
Magnetic molecules constitute small quantum spin systems with interesting properties. After introducing this class of materials I would like to focus on the magnetocaloric properties of such molecules as well as on possible modification of magnetic properties in contact with non-magnetic metallic substrates. For each of these examples I am going to explain very recent theory developments to calculate magnetic observables for large spin systems.
[1] J.W. Sharples, D. Collison, E.J.L. McInnes, J. Schnack, E. Palacios, M. Evangelisti, Quantum signatures of a molecular nanomagnet in direct magnetocaloric measurements, Nature Communications 5 (2014) 5321.
[2] J. Schnack, O. Wendland, Properties of highly frustrated magnetic molecules studied by the finite-temperature Lanczos method, Eur. Phys. J. B 78 (2010) 535-541; O. Hanebaum, J. Schnack, Advanced Finite-Temperature Lanczos Method for anisotropic spin systems, Eur. Phys. J. B 87 (2014) 194.