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High field high frequency EPR techniques and their application to single molecule magnets
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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. doi:10.1016/j.physb.2004.01.052 ISSN 0921-4526.
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Official URL: http://dx.doi.org/10.1016/j.physb.2004.01.052
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) | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | PHYSICA B-CONDENSED MATTER | ||||
Publisher: | ELSEVIER SCIENCE BV | ||||
ISSN: | 0921-4526 | ||||
Official Date: | 30 April 2004 | ||||
Dates: |
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Volume: | 346 | ||||
Number of Pages: | 5 | ||||
Page Range: | pp. 211-215 | ||||
DOI: | 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 |
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