The valence state of TmTe at high pressure
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説明
Abstract The pressure-induced valence state of the Tm ions in TmTe has been investigated by means of X-ray diffraction and magnetic susceptibility measurements at high pressures. Below 2 GPa, the valence of Tm is conformed to be 2+ from the results of compressibility and magnetic susceptibility. In the pressure range from 2 GPa to 6 GPa, a valence transition from 2+ to 3+ is concluded from the pressure dependence of the lattice parameters observed by in situ X-ray diffraction. The NaCl-type structure with Tm in trivalent state, which appears above 6 GPa, is also shown to begin to transform to a tetragonal structure above 8 GPa by X-ray diffractometry.
収録刊行物
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- Solid State Communications
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Solid State Communications 100 571-574, 1996-11-01
Elsevier BV