Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
MU-SR STUDIES OF MAGNETISM IN THE ORGANIC-SYSTEMS P-NPNN AND 3-QNNN
Autore:
PATTENDEN PA; VALLADARES RM; PRATT FL; BLUNDELL SJ; FISHER AJ; HAYES W; SUGANO T;
Indirizzi:
UNIV OXFORD,CLARENDON LAB,PARKS RD OXFORD OX1 3PU ENGLAND UNIV DURHAM,DEPT PHYS,SCI LABS DURHAM DH1 3LE ENGLAND MEIJI GAKUIN UNIV,DEPT CHEM YOKOHAMA KANAGAWA 244 JAPAN
Titolo Testata:
Synthetic metals
fascicolo: 1-3, volume: 71, anno: 1995,
pagine: 1823 - 1824
SICI:
0379-6779(1995)71:1-3<1823:MSOMIT>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
NITROXIDE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
5
Recensione:
Indirizzi per estratti:
Citazione:
P.A. Pattenden et al., "MU-SR STUDIES OF MAGNETISM IN THE ORGANIC-SYSTEMS P-NPNN AND 3-QNNN", Synthetic metals, 71(1-3), 1995, pp. 1823-1824

Abstract

Recently, ferromagnetism has been observed in a family of organic molecular crystals based on the nitronyl nitroxide radical group. We report zero-field mu SR measurements on compressed powder samples of the organic magnets p-NPNN and 3-QNNN which have been used to directly probe the temperature dependence of the spontaneous field and the relaxation rate in each system. In p-NPNN, we observe a temperature dependenceof the spontaneous field which is very similar to that seen in an aligned single crystal experiment and yield the same Curie temperature (T-c=670 mK). However, the oscillations in the measured signal are very strongly damped, particularly so just below the transition temperature. In 3-QNNN, the oscillations indicate a lower spontaneous field and asmaller Curie temperature (T-c=210 mK).

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 15:26:33