Spin Ice-like Magnetic Relaxation of a Two-dimensional Network based on Manganese(III) Salen-type Single-Molecule Magnets

Chihiro Kachi-Terajima, Tasuku Eiba, Rikako Ishii, Hitoshi Miyasaka, Yuta Kodama, Toshiaki Saito

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Spin ice is an exotic type of magnetism displayed by bulk rare-earth pyrochlore oxides. We discovered a spin ice-like magnetic relaxation of [{Mn(saltmen)}4{Mn(CN)6}](ClO4)⋅13 H2O (saltmen2−=N,N′-(1,1,2,2-tetramethylethylene)bis(salicylideneiminate)). This magnetic system can be considered as a two-dimensional network of MnIII salen-type single-molecule magnets (SMMs) in which each SMM unit (ST=4) has two orthogonally oriented axial anisotropies and is connected ferromagnetically through the [Mn(CN)6]3− unit (S=1). This work illustrates that a two-dimensional SMM network with competition between the ferromagnetic interaction and local noncollinear magnetic anisotropies on SMMs is a new type of magnetic system exhibiting slow relaxation of magnetization with a Davidson-Cole-type broad distribution of the relaxation time.

Original languageEnglish
Pages (from-to)22048-22053
Number of pages6
JournalAngewandte Chemie - International Edition
Volume59
Issue number49
DOIs
Publication statusPublished - 2020 Dec 1

Keywords

  • layered compounds
  • magnetic properties
  • manganese complexes
  • single-molecule magnets
  • spin ice

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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