Magnetic and transport properties of cubic Fe1-xZnxO solid solutions with a rock salt structure synthesized at high pressure

IF 3.2 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Solid State Chemistry Pub Date : 2024-12-26 DOI:10.1016/j.jssc.2024.125172

Petr S. Sokolov , Andrey N. Baranov , Evgeny P. Skipetrov , Vladimir L. Solozhenko

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Abstract

Metastable cubic Fe_1-xZn_xO solid solutions (0 < x ≤ 0.5) with a rock salt structure (Fm-3m) have been synthesized by a solid-phase reaction between wurtzite ZnO and cubic FeO at 7.7 GPa and 1500 K. The magnetic and transport properties of these solid solutions were studied at ambient pressure over the temperature range of 4.2–300 K, and the presence of antiferromagnetic order has been revealed with a decrease of the Néel temperature from 112 K for Fe_0.7Zn_0.3O down to 45 K for Fe_0.5Zn_0.5O. Synthesized rock salt Fe_1-xZn_xO solid solutions exhibit semiconducting behavior with low electrical resistivity (at 300 K, from 0.37 Ohm∙cm for x = 0 to 28 Ohm∙cm for x = 0.5) and p-type conductivity due to the presence of a deep defect level with an activation energy of 105–144 meV located above the top of the valence band.

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来源期刊

Journal of Solid State Chemistry 化学-无机化学与核化学

CiteScore

6.00

自引率

9.10%

发文量

848

审稿时长

25 days

期刊介绍： Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.