Speaker
Gediminas Simutis
(Laboratory for Muon Spin Spectroscopy, PSI Villigen, Switzerland and Neutron Scattering and Magnetism Group, ETH Zürich, Switzerland)
Description
Due to the unique topology, defects in one-dimensional systems have a profound effect on the physics of quantum systems. In this contribution we will present an extensive experimental inquiry into the effect of disorder in Heisenberg antiferromagnetic S = 1/2 chain. By combining muon and neutron experiments, we have found drastic changes and suppression of magnetism in both static and dynamic properties upon introduction of defects. These findings in initially-gapless systems will be contrasted with the enhancement of magnetism by defects in gapped systems.
Primary author
Gediminas Simutis
(Laboratory for Muon Spin Spectroscopy, PSI Villigen, Switzerland and Neutron Scattering and Magnetism Group, ETH Zürich, Switzerland)
Co-authors
Severian Gvasaliya
(Neutron Scattering and Magnetism Group, ETH Zürich, Switzerland)
Matthias Thede
(Neutron Scattering and Magnetism Group, ETH Zürich, Switzerland and Laboratory for Muon Spin Spectroscopy, PSI Villigen, Switzerland)
Martin Mansson
(Royal Institute of Technology, Stockholm, Sweden)
Neela Sekhar Beesetty
(Synthese, Proprietes et Modelisation des Materiaux, Universite Paris-Sud, France)
Romuald Saint-Martin
(Synthese, Proprietes et Modelisation des Materiaux, Universite Paris-Sud, France)
Ashwin Mohan
(Leibniz Institute for Solid State and Materials Research IFW, Dresden, Germany)
Toshiya Yoshida
(Institute for Solid State Physics, University of Tokyo, Japan)
Christopher Baines
(Laboratory for Muon Spin Spectroscopy, PSI Villigen, Switzerland)
Zurab Guguchia
(Laboratory for Muon Spin Spectroscopy, PSI Villigen, Switzerland)
Rustem Khassanov
(Laboratory for Muon Spin Spectroscopy, PSI Villigen, Switzerland)
Julien Robert
(Laboratoire Léon Brillouin, CEA-CNRS, Gif-sur-Yvette, France)
Sylvain Petit
(Laboratoire Léon Brillouin, CEA-CNRS, Gif-sur-Yvette, France)
Matthew Stone
(Oak Ridge National Laboratory, Oak Ridge, USA)
Alexander Kolesnikov
(Oak Ridge National Laboratory, Oak Ridge, USA)
Andrei Savici
(Oak Ridge National Laboratory, Oak Ridge, USA)
Helen Walker
(ISIS Facility, Rutherford Appleton Laboratory, Didcot,UK)
Devashibhai Adroja
(ISIS Facility, Rutherford Appleton Laboratory, Didcot,UK)
Toby Perring
(ISIS Facility, Rutherford Appleton Laboratory, Didcot,UK)
Andrea Piovano
(Institut Laue-Langevin, Grenoble, France)
Frederic Bourdarot
(Institut Laue-Langevin, Grenoble, France)
Igor Zaliznyak
(Brookhaven National Laboratory, Upton New York, USA)
Alexander Chernyshev
(Department of Physics and Astronomy, University of California, Irvine, USA)
Takatsugu Masuda
(Institute for Solid State Physics, University of Tokyo, Japan)
Christian Hess
(Leibniz Institute for Solid State and Materials Research IFW, Dresden, Germany)
Bernd Büchner
(Leibniz Institute for Solid State and Materials Research IFW, Dresden, Germany)
Alexandre Revcolevschi
(Synthese, Proprietes et Modelisation des Materiaux, Universite Paris-Sud, France)
Andrey Zheludev
(Neutron Scattering and Magnetism Group, ETH Zürich, Switzerland)
