Chiral symmetry and scale invariance breaking in spin chains
Abstract
The effects of the Dzyaloshinsky-Moriya interaction on finite size one-dimensional (1D) magnetic chains are investigated as a function of their length. The magnetic configuration the system adopts for varying boundary conditions are explored analytically, which leads to the appearance of chiral configurations that play a crucial role. The coercive and exchange bias fields show an unexpected chain length dependence, caused by the boundary conditions and by chiral symmetry breaking, which in turn leads to the breakdown of scale-invariance. Our treatment yields results in agreement with experimental evidence and ongoing research on phthalocyanine iron chains bonded to hydrogen.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 01, 2020
- Source ID
- 10.1063/1.5130190
Entities
People
- Carlos Monton
- Felipe Torres
- Ivan K. Schuller
- Miguel Kiwi
- Nicolas M. Vargas
Organizations
- Air Force Office of Scientific Research
- Center for the Development of Nanoscience and Nanotechnology
- General Atomics
- National Fund for Scientific and Technological Development
- Office of Basic Energy Sciences
- University of California