Effect of the spin-crossover on the ACAR spectra through the ortho-para conversion of positronium

H. Saito, Yasuyoshi Nagai, T. Hyodo, K. Suvegh, A. Vertes

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

Angular correlation of annihilation radiation (ACAR) from single crystals of [Fe(ptz)6](BF4)2 and [Zn(ptz)6](BF4)2 were measured in the temperature range between 23K and 295K. Large temperature dependence of ACAR spectra for [Fe(ptz)6](BF4)2 around the spin-crossover temperature (130K) was observed. On the contrary, ACAR spectra for [Zn(ptz)6](BF4)2 was almost independent of temperature. The results show that the positronium atom is highly sensitive probe of the spin-crossover transition.

Original languageEnglish
Pages (from-to)765-768
Number of pages4
JournalMaterials Science Forum
Volume175-178
Issue numberpt 2
Publication statusPublished - 1995 Jan 1
Externally publishedYes
EventProceedings of the 10th International Conference on Positron Annihilation. Part 1 (of 2) - Beijing, China
Duration: 1994 May 231994 May 29

ASJC Scopus subject areas

  • Materials Science(all)

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