Magnetic structure of the S= 12 quasi-two-dimensional square-lattice Heisenberg antiferromagnet Sr2CuTeO6

Tomoyuki Koga, Nobuyuki Kurita, Maxim Avdeev, Sergey Danilkin, Taku J. Sato, Hidekazu Tanaka

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

The magnetic structure of the double perovskite compound Sr2CuTeO6 was determined from neutron powder diffraction data. This material is magnetically described as an S=1/2 quasi-two-dimensional square-lattice Heisenberg model with antiferromagnetic nearest-neighbor and next-nearest-neighbor interactions. Sr2CuTeO6 undergoes a magnetic phase transition at TN≃29 K. The spin structure below TN is Néel antiferromagnetic on the square lattice, which means that the nearest-neighbor interaction (J1) is stronger than the next-nearest-neighbor interaction (J2), in contrast to other isostructural compounds such as Ba2CuWO6 and Sr2CuWO6, for which |J1|<|J2| is realized.

Original languageEnglish
Article number054426
JournalPhysical Review B
Volume93
Issue number5
DOIs
Publication statusPublished - 2016 Feb 26

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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