Positron annihilation study of spin-crossover in [FexZn1-x(ptz)6](BF4)2 single crystals

A. Vértes, K. Süvegh, Roland Hinek, Philipp Gütlich

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Positron lifetime measurements were carried out on [FexZn1-x(ptz)6](BF4)2 single crystals in the temperature range of 72-300 K. Complementary Doppler broadening spectra were also recorded at room temperature. The probability of the formation of o-Ps (lifetime 500-1400 ps) was between 10-30%. Both the spin density and the lattice parameters of the sample affected the lifetime of o-Ps through the ortho-para conversion and the pick-off annihilation, respectively. The positron annihilation technique proved to be a sensitive detector of the spin-crossover5T21A1 and of the concomitant phase transformation.

Original languageEnglish
Pages (from-to)483-489
Number of pages7
JournalHyperfine Interactions
Volume84
Issue number1
DOIs
Publication statusPublished - Dec 1994

Fingerprint

Positron annihilation
positron annihilation
crossovers
Single crystals
life (durability)
Doppler effect
single crystals
Positrons
ortho para conversion
Lattice constants
Phase transitions
Detectors
Temperature
phase transformations
positrons
lattice parameters
detectors
room temperature
temperature

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Electronic, Optical and Magnetic Materials

Cite this

Positron annihilation study of spin-crossover in [FexZn1-x(ptz)6](BF4)2 single crystals. / Vértes, A.; Süvegh, K.; Hinek, Roland; Gütlich, Philipp.

In: Hyperfine Interactions, Vol. 84, No. 1, 12.1994, p. 483-489.

Research output: Contribution to journalArticle

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