UNSPECIFIED (2004) High field high frequency EPR techniques and their application to single molecule magnets. In: 7th International Symposium on Research in High Magnetic Fields, Inst Natl Sci Appl, Toulouse, FRANCE, JUL 20-23, 2003. Published in: PHYSICA B-CONDENSED MATTER, 346 pp. 211-215.

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Abstract

We present details of a new high-field/high-frequency EPR technique, and its application to measurements of single-molecule magnets (SMMs). By using a quasi-optical set-up and microwave sources covering a continuous frequency range from 170 to 600 GHz, in conjunction with a millimetre-wave vector network analyser, we are able to measure EPR to high magnetic fields. For example, a g = 2 system will exhibit EPR at about 14 T at a frequency of 400 GHz. We illustrate the technique by presenting details of recent high-frequency experiments on several SMMs which are variations of the well-known SMM Mn-12-Ac. This material has a spin ground state of S = 10 and large uniaxial anisotropy, hence frequencies above 300 GHz are required in order to observe EPR from the ground state. (C) 2004 Elsevier B.V. All rights reserved.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	Q Science > QC Physics
Journal or Publication Title:	PHYSICA B-CONDENSED MATTER
Publisher:	ELSEVIER SCIENCE BV
ISSN:	0921-4526
Date:	30 April 2004
Volume:	346
Number of Pages:	5
Page Range:	pp. 211-215
Identification Number:	10.1016/j.physb.2004.01.052
Publication Status:	Published
Title of Event:	7th International Symposium on Research in High Magnetic Fields
Location of Event:	Inst Natl Sci Appl, Toulouse, FRANCE
Date(s) of Event:	JUL 20-23, 2003
URI:	http://wrap.warwick.ac.uk/id/eprint/8433

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