Ortho-positronium lifetime as a detector of spin-crossover

Authors
Bokor, M Marek, T Suvegh, K Bocskei, ZS Buschmann, J Vertes, A
Citation
M. Bokor et al., Ortho-positronium lifetime as a detector of spin-crossover, ACT PHY P A, 95(4), 1999, pp. 469-473
Citations number
8
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA A
ISSN journal
05874246 → ACNP
Volume
95
Issue
4
Year of publication
1999
Pages
469 - 473
Database
ISI
SICI code
0587-4246(199904)95:4<469:OLAADO>2.0.ZU;2-4
Abstract
Positron lifetime parameters were measured for the spin-crossover complexes [Fe(R-1H-tetrazole)(6)](BF4)(2) (R I-ethyl, 1-n-propyl) and for the diamag netic [Zn(1-n-propyl-1H-tetrazole)(6)](BF4)(2). Positronium forms with sign ificant intensity in the studied compounds. The ortho-para conversion of or tho-positronium was used to follow the spin-crossover. Changes of the dynam ic structure were found in the propyltetrazole complex between 150 K and 90 K.