Magnetic phase transitions around room temperature in Cu 9 S 5

Annette Setzer, Pablo D. Esquinazi, Lukas Botsch, Oliver Baehre, Eti Teblum, Anat Itzhak, Olga Girshevitz, Gilbert Daniel Nessim

Research output: Contribution to journalArticlepeer-review

Abstract

We have studied the magnetization of a recently synthesized Cu (Formula presented.) S (Formula presented.) compound and found two phase transitions around room temperature. The phase transitions in the crystalline structure, characterized by XRD studies, are accompanied by changes also in the electrical resistivity. A hysteretic first-order phase transition has been found between 260 and 320 K, from a low-temperature paramagnetic anilite phase to a diamagnetic high-temperature low-digenite phase. A second order phase transition was recognized at ≃ 352 K from low digenite to a paramagnetic high-digenite structure at high temperatures.

Original languageEnglish
Pages (from-to)385-395
Number of pages11
JournalPhase Transitions
Volume92
Issue number4
DOIs
StatePublished - 3 Apr 2019

Keywords

  • Copper sulphide
  • diamagnetism
  • magnetic phase transition
  • paramagnetism
  • room temperature phase transitions

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • General Materials Science

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