2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1997

On-site magnetization in open antiferromagnetic chains: a classical analysis versus NMR experiments in a spin-1 compound

Authors: S. Botti, A. Rosso, R. Santachiara, and F. Tedoldi

Ref.: Phys. Rev. B 63, 012409 (2001)

Abstract: The response of an open spin chain with isotropic antiferromagnetic interactions to a uniform magnetic field is studied by classical Monte Carlo simulations. It is observed how the induced on-site magnetization is nonuniform, due to the occurrence of edge staggered terms which decay exponentially over a distance equal to the zero-field correlation length of the infinite chain. The total magnetic moment associated to each staggered term is found to be about half of the original single-spin magnitude and to decrease as the inverse of temperature (i.e., to behave as a Curie-like moment). The numerical results are compared to recent NMR findings in spinless-doped Y2BaNiO5; the remarkable agreement found shows that, for temperatures above the Haldane gap, the classical approach gives a correct picture of the boundary effects observed in the Heisenberg S=1 chain.

Citations: 4 (Google scholar)

DOI: 10.1103/PhysRevB.63.012409

Download

Bibtex:

 @article{Botti_2000, title={On-site magnetization in open antiferromagnetic chains: A classical analysis versus NMR experiments in a spin-1 compound}, volume={63}, ISSN={1095-3795}, url={http://dx.doi.org/10.1103/PhysRevB.63.012409}, DOI={10.1103/physrevb.63.012409}, number={1}, journal={Physical Review B}, publisher={American Physical Society (APS)}, author={Botti, S. and Rosso, A. and Santachiara, R. and Tedoldi, F.}, year={2000}, month=dec }