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Proceedings Paper

Ferromagnetism in pristine polythiophene at low temperature
Author(s): P. Gangopadhyay; G. Koeckelberghs; A. Persoons
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Paper Abstract

We report on the magnetic behavior of pristine, substituted regioregular poly(thiophene)s. SQUID magnetometry reveals ferromagnetic order below 20K in regioregular (RR) poly(3-dodecyl)thiophene (P3DT), while the regiorandom (RRa) counterpart is barely magnetic. The magnetic behavior and strength observed by SQUID magnetometry appears to be governed by the supramolecular structure. Formation of nanodoughnut structures within the relatively short chain RRP3DT further indicates strong role of supramolecular structures towards ferromagnetic ordering.

Paper Details

Date Published: 21 February 2011
PDF: 6 pages
Proc. SPIE 7935, Organic Photonic Materials and Devices XIII, 79350U (21 February 2011); doi: 10.1117/12.876545
Show Author Affiliations
P. Gangopadhyay, The Univ. of Arizona (United States)
G. Koeckelberghs, Katholieke Univ. Leuven (Belgium)
A. Persoons, The Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 7935:
Organic Photonic Materials and Devices XIII
Robert L. Nelson; François Kajzar; Toshikuni Kaino; Yasuhiro Koike, Editor(s)

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