Skip to main navigation Skip to search Skip to main content

Two new lanthanide members of francisite family Cu3Ln(SeO3)2O2Cl (Ln = Eu, Lu)

  • K. V. Zakharov
  • , E. A. Zvereva
  • , E. S. Kuznetsova
  • , P. S. Berdonosov
  • , V. A. Dolgikh
  • , M. M. Markina
  • , A. V. Olenev
  • , A. A. Shakin
  • , O. S. Volkova
  • , A. N. Vasiliev
  • Lomonosov Moscow State University
  • Sine Theta Ltd.
  • National University of Science and Technology "MISiS"
  • Ural Federal University

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Two new lanthanide compounds, Cu3Ln(SeO3)2O2Cl, Ln = Eu and Lu, with mineral francisite structure were synthesized under vacuum in sealed quartz tubes. The Rietveld refinement of the structure results in orthorhombic unit cell, space group Pmmn. The arrangement of magnetically active Cu2+ ions in francisite structure corresponds to buckled kagomé type lattice. Both compounds were characterized in measurements of ac-magnetic susceptibility, dc-magnetization, X-band electron spin resonance and specific heat in the range 2-320 K under magnetic field up to 9 T. The ferromagnetic interactions dominate in both compounds at elevated temperatures. The Eu (Lu) francisite manifests antiferromagnetic order at TN = 36 (38) K and undergoes the field-induced metamagnetic transition into canted ferrimagnetic state at BC = 2.6 (3.0) T. The magnetization loops of both compounds evidence hysteretic behavior above BC.

Original languageEnglish
Pages (from-to)442-447
Number of pages6
JournalJournal of Alloys and Compounds
Volume685
DOIs
StatePublished - Nov 15 2016
Externally publishedYes

Keywords

  • Oxide materials
  • Phase transitions
  • Rare earth alloys and compounds
  • Thermodynamic properties
  • Transition metal alloys and compounds

Fingerprint

Dive into the research topics of 'Two new lanthanide members of francisite family Cu3Ln(SeO3)2O2Cl (Ln = Eu, Lu)'. Together they form a unique fingerprint.

Cite this