Magnetic-Field-Induced Dielectric Anomalies in Cobalt-Containing Garnets

Abbey J. Neer, Jo Anna Milam-Guerrero, Veronika A. Fischer, Michelle Zheng, Nicole R. Spence, Clayton Cozzan, Mingqiang Gu, James M. Rondinelli, Craig M. Brown, Brent C. Melot*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Here we present a comparative study of the magnetic and crystal chemical properties of two Co2+ containing garnets. CaY2Co2Ge3O12 (which has been reported previously) and NaCa2Co2V3O12 both exhibit the onset of antiferromagnetic order around 6 K as well as field-induced transitions around 7 and 10 T, respectively, that manifest as anomalies in the dielectric properties of the material. We perform detailed crystal-chemistry analyses and complementary density functional theory calculations to show that very minor changes in the local environment of the Co ions explain the differences in the two magnetic structures and their respective properties.

Original languageEnglish (US)
Pages (from-to)5452-5458
Number of pages7
JournalInorganic chemistry
Issue number14
StatePublished - Apr 11 2022

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry


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