Abstract
Murdochite-type (Mg6−xLix)MnO8(0.0 ≤x≤ 0.3) was synthesized at 973 K in a flow of pure oxygen gas using a solid state reaction. The cell constants, the (Mg, Li)–O(1) distance, and the Mn–O(1) distance monotonously decrease with increasingx. The variation of the effective magnetic moment (μeff) calculated from the magnetic measurement indicates that both the Mn4+and the Mn5+ions coexist in (Mg6−xLix)MnO8(0.0 ≤x≤ 0.2). The binding energies of the Mg 2s1/2, Li 1s1/2, Mn 2p3/2, and O 1s1/2levels of (Mg6−xLix)MnO8were determined by X-ray photoelectron spectroscopy (XPS), and they are independent of the composition.
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