Controlling Magnetic Order and Quantum Disorder in Molecule-Based Magnets

Lancaster, T.; Goddard, P. A.; Blundell, S. J.; Foronda, F. R.; Ghannadzadeh, S.; Möller, J. S.; Baker, P. J.; Pratt, F. L.; Baines, C.; Huang, L.; Wosnitza, J.; McDonald, R. D.; Modic, K. A.; Singleton, J.; Topping, C. V.; Beale, T. A. W.; Xiao, F.; Schlueter, J. A.; Barton, A. M.; Cabrera, R. D.; Carreiro, K. E.; Tran, H. E.; Manson, J. L.

doi:10.1103/physrevlett.112.207201

Controlling Magnetic Order and Quantum Disorder in Molecule-Based Magnets

Lancaster, T.; Goddard, P. A.; Blundell, S. J.; Foronda, F. R.; Ghannadzadeh, S.; Möller, J. S.; Baker, P. J.; Pratt, F. L.; Baines, C.; Huang, L.; Wosnitza, J.; McDonald, R. D.; Modic, K. A.; Singleton, J.; Topping, C. V.; Beale, T. A. W.; Xiao, F.; Schlueter, J. A.; Barton, A. M.; Cabrera, R. D.; Carreiro, K. E.; Tran, H. E.; Manson, J. L.

Authors

Professor Tom Lancaster tom.lancaster@durham.ac.uk
Professor

P. A. Goddard

S. J. Blundell

F. R. Foronda

S. Ghannadzadeh

J. S. Möller

P. J. Baker

F. L. Pratt

C. Baines

L. Huang

J. Wosnitza

R. D. McDonald

K. A. Modic

J. Singleton

C. V. Topping

T. A. W. Beale

F. Xiao

J. A. Schlueter

A. M. Barton

R. D. Cabrera

K. E. Carreiro

H. E. Tran

J. L. Manson

Abstract

We investigate the structural and magnetic properties of two molecule-based magnets synthesized from the same starting components. Their different structural motifs promote contrasting exchange pathways and consequently lead to markedly different magnetic ground states. Through examination of their structural and magnetic properties we show that [Cu(pyz)(H 2 O)(gly) 2 ](ClO 4 ) 2 may be considered a quasi-one-dimensional quantum Heisenberg antiferromagnet whereas the related compound [Cu(pyz)(gly)](ClO 4 ) , which is formed from dimers of antiferromagnetically interacting Cu 2+ spins, remains disordered down to at least 0.03 K in zero field but shows a field-temperature phase diagram reminiscent of that seen in materials showing a Bose-Einstein condensation of magnons.

Citation

Lancaster, T., Goddard, P., Blundell, S., Foronda, F., Ghannadzadeh, S., Möller, J., …Manson, J. (2014). Controlling Magnetic Order and Quantum Disorder in Molecule-Based Magnets. Physical Review Letters, 112(20), Article 207201. https://doi.org/10.1103/physrevlett.112.207201

Journal Article Type	Article
Acceptance Date	Apr 18, 2014
Online Publication Date	May 19, 2014
Publication Date	May 19, 2014
Deposit Date	May 20, 2014
Publicly Available Date	May 21, 2014
Journal	Physical Review Letters
Print ISSN	0031-9007
Electronic ISSN	1079-7114
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	112
Issue	20
Article Number	207201
DOI	https://doi.org/10.1103/physrevlett.112.207201

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Copyright Statement
Reprinted with permission from the American Physical Society: T. Lancaster, P. A. Goddard, S. J. Blundell, F. R. Foronda, S. Ghannadzadeh, J. S. Möller, P. J. Baker, F. L. Pratt, C. Baines, L. Huang, J. Wosnitza, R. D. McDonald, K. A. Modic, J. Singleton, C. V. Topping, T. A. W. Beale, F. Xiao, J. A. Schlueter, A. M. Barton, R. D. Cabrera, K. E. Carreiro, H. E. Tran, and J. L. Manson, Physical Review Letters, 112, 20, 207201, 2014. © 2014 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.