Quantum Tunneling and Phase Transitions in Spin Systems with an Applied Magnetic Field

  • Transitions from classical to quantum behaviour in a spin system with two degenerate ground states separated by twin energy barriers which are asymmetric due to an applied magnetic field are investigated. It is shown that these transitions can be interpreted as first- or second-order phase transitions depending on the anisotropy and magnetic parameters defining the system in an effective Lagrangian description.

Download full text files

Export metadata

Additional Services

Search Google Scholar
Metadaten
Author:S.-Y. Lee, H. J. W. Müller-Kirsten, F. Zimmerschied, D.K. Park
URN:urn:nbn:de:hbz:386-kluedo-8650
Document Type:Preprint
Language of publication:English
Year of Completion:1998
Year of first Publication:1998
Publishing Institution:Technische Universität Kaiserslautern
Date of the Publication (Server):2000/04/03
Faculties / Organisational entities:Kaiserslautern - Fachbereich Physik
DDC-Cassification:5 Naturwissenschaften und Mathematik / 530 Physik
Licence (German):Standard gemäß KLUEDO-Leitlinien vor dem 27.05.2011