Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/xmlui/handle/123456789/19841
Title: Ferrotoroidic ground state in a heterometallic {(CrDy6III)-Dy-III} complex displaying slow magnetic relaxation
Authors: VIGNESH, KR
SONCINI, A
LANGLEY, SK
WERNSDORFER, W
MURRAY, KS
RAJARAMAN, G
Keywords: Single-Molecule Magnet
Coupling Dy-3 Triangles
Paramagnetic-Resonance
Dysprosium Triangles
Quantum-Chemistry
Exchange
Moment
Ln
Mechanism
Software
Issue Date: 2017
Publisher: NATURE PUBLISHING GROUP
Citation: NATURE COMMUNICATIONS,8,
Abstract: Toroidal quantum states are most promising for building quantum computing and information storage devices, as they are insensitive to homogeneous magnetic fields, but interact with charge and spin currents, allowing this moment to be manipulated purely by electrical means. Coupling molecular toroids into larger toroidal moments via ferrotoroidic interactions can be pivotal not only to enhance ground state toroidicity, but also to develop materials displaying ferrotoroidic ordered phases, which sustain linear magneto-electric coupling and multiferroic behavior. However, engineering ferrotoroidic coupling is known to be a challenging task. Here we have isolated a {(CrDy6III)-Dy-III} complex that exhibits the much sought-after ferrotoroidic ground state with an enhanced toroidal moment, solely arising from intramolecular dipolar interactions. Moreover, a theoretical analysis of the observed sub-Kelvin zero-field hysteretic spin dynamics of {(CrDy6III)-Dy-III} reveals the pivotal role played by ferrotoroidic states in slowing down the magnetic relaxation, in spite of large calculated single-ion quantum tunneling rates.
URI: http://dx.doi.org/10.1038/s41467-017-01102-5
http://localhost:8080/xmlui/handle/123456789/19841
ISSN: 2041-1723
Appears in Collections:Article

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.