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Crystal field model for the resistivity minimum and its evolution with hydrogen concentration in PrH2+x (1990)

Burger, J. P. ; Daou, J. N. ; Vajda, P.

Springer

The European physical journal 80 (1990), S. 233-236

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ISSN: 1434-6036

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The spin-disorder resistivity ρ m (T) of PrH2+x shows for the pure dihydride (x=0) a minimum in its temperature dependence above the magnetic ordering temperatureT N . This minimum can be explained qualitatively and quantitatively by a crystal-field effect if the ground state is ε1 =Γ 5 (a magnetic state) while the first excited state is ε2 =Γ 1 (a non-magnetic state). Forx=0.08, the magnetic ordering and the resistivity minimum tend to disappear which can be explained by the change of the crystalfield symmetry induced by the supplementary H-ions, leading to a splitting of the ground state.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01357507

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