EFFECT OF SPIN-CROSSOVER ON THE PARAMETERS OF THE LIFETIME SPECTRA OFPOSITRONS AND POSITRONIUM IN CRYSTALLINE MATERIALS

Authors
VERTES A BOKOR M SUVEGH K MAREK T NEMESVETESSY Z LABADI I BURGER K
Citation
A. Vertes et al., EFFECT OF SPIN-CROSSOVER ON THE PARAMETERS OF THE LIFETIME SPECTRA OFPOSITRONS AND POSITRONIUM IN CRYSTALLINE MATERIALS, Journal of physics and chemistry of solids, 59(8), 1998, pp. 1235-1239
Citations number
12
Categorie Soggetti
Physics, Condensed Matter",Chemistry
Journal title
Journal of physics and chemistry of solids → ACNP
ISSN journal
00223697
Volume
59
Issue
8
Year of publication
1998
Pages
1235 - 1239
Database
ISI
SICI code
0022-3697(1998)59:8<1235:EOSOTP>2.0.ZU;2-#
Abstract
Positron lifetime parameters were measured for the spin-crossover comp lexes [Fe(1-alkyl-1H-tetrazole)(6)](BF4)(2) and [Fe(1, 10-phenathrolin e)(2)(NCS)(2)]. If there are structural free volumes large enough las for [Fe(1-ethyl-1H-tetrazole)(6)](BF4)(2) and Fe(1-propyl-1H-tetrazole )(6)](BF4)(2)), there is a significant intensity of positronium (Ps) a nd the lifetime of o-Ps is a detector of spin-crossover. The intensity of the shortest lifetime component also signals the spin-crossover. ( C) 1998 Elsevier Science Ltd. All rights reserved.