Heat Capacity Study of Ti and Zn‐doped Magnetite | Zendy

Kozłowski A. | Zendy; Ka̧kol Z. | Zendy; Kim D. | Zendy; Zalecki R. | Zendy; Honig J. M. | Zendy

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Heat Capacity Study of Ti and Zn‐doped Magnetite

Author(s) -

Kozłowski A.,

Ka̧kol Z.,

Kim D.,

Zalecki R.,

Honig J. M.

Publication year - 1997

Publication title -

zeitschrift für anorganische und allgemeine chemie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.354

H-Index - 66

eISSN - 1521-3749

pISSN - 0044-2313

DOI - 10.1002/zaac.19976230118

Subject(s) - magnetite , doping , charge ordering , materials science , dopant , oxygen , inorganic chemistry , mineralogy , metallurgy , thermodynamics , chemistry , charge (physics) , physics , optoelectronics , quantum mechanics , organic chemistry

Heat capacities have been measured on single crystal specimens of magnetite containing low levels of Ti or Zn as a replacement for iron. A change in the nature of the Verwey transition from first to second or higher order was observed with increasing doping levels. This is in strict analogy with prior observations showing a similar change when the oxygen/iron ratio is increased beyond the 4/3 ratio. The entropy of the Verwey transition diminishes with increasing concentration of dopants.

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