Calculation of Magnetization and Magnetic Susceptibility Close to Magnetic Phase Transitions in (CH3)2NH2FeIIINiII(HCOO)6 and (CH3)2NH2FeIIICuII(HCOO)6

YURTSEVEN H. H., Tari O.

Journal of Low Temperature Physics, vol.202, pp.145-159, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 202
  • Publication Date: 2021
  • Doi Number: 10.1007/s10909-020-02530-2
  • Journal Name: Journal of Low Temperature Physics
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.145-159
  • Middle East Technical University Affiliated: Yes

Abstract

We study the temperature and magnetic field dependence of the magnetization (M) and the inverse susceptibility (chi(-1)) in the metal-organic frameworks, in particular, for (CH3)(2)(NH2FeNiII)-Ni-III(HCOO)(6) (DMFeNi) and (CH3)(2)(NH2FeCuII)-Cu-III(HCOO)(6) (DMFeCu) close to their magnetic phase transitions. The Landau phenomenological model is employed to analyze the experimental data for the M(T, H) from the literature and to calculate chi(-1)(T, H) of DMFeNi and DMFeCu. Our results indicate that the thermodynamic model studied explains adequately the observed behavior of M(T, H) for DMFeNi and DMFeCu, which exhibit a weakly first-order (or nearly second order) magnetic phase transition.