Phase transitions driven by competing interactions in low-dimensional systems
- Author(s)
- Michael Cordin, B. A. J. Lechner, Peter Amann, Alexander Menzel, Erminald Bertel, Cesare Franchini, Rinaldo Zucca, Josef Redinger, Mikhail Baranov, Sebastian Diehl
- Abstract
Variable-temperature scanning tunnelling microscopy is used to study an order-order phase transition in a virtually defect-free quasi-one-dimensional surface system. The phase transition is driven by competing electronic interactions. The phase diagram is captured by a modified Landau formalism containing a coupling term between two different subsystems. The extra term has the effect of a spontaneously generated field which drives the phase transition. The proposed formalism applies to a variety of problems, where competing interactions produce sometimes counter-intuitive ordering phenomena.
- Organisation(s)
- Computational Materials Physics
- External organisation(s)
- Leopold-Franzens-Universität Innsbruck, Technische Universität Wien, Center for Computational Materials Science, CMS, Österreichische Akademie der Wissenschaften (ÖAW)
- Journal
- Europhysics Letters
- Volume
- 92
- No. of pages
- 5
- ISSN
- 0295-5075
- DOI
- https://doi.org/10.1209/0295-5075/92/26004
- Publication date
- 2010
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103018 Materials physics
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/933247de-4b88-414f-9667-33694e798443