Abstract
Measurements of electrical resistivity of single- and polycrystalline Gd were performed in a large volume cubic anvil press in the h.c.p. phase region at room temperature up to 16 kbar. The anisotropy of electrical resistivity of h.c.p. Gd, observed at room pressure and temperature, is maintained at elevated pressure for the entire h.c.p. range. When the low pressure dependence of anisotropy is extrapolated to higher pressure beyond the stability region of the h.c.p. phase, the anisotropy disappears at approximately 205 kbar. The pressure-induced decrease in anisotropy is discussed in terms of related anisotropies of compressibility and the spin-disorder component of electrical resistivity.
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