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Thermopower of mixed-valent CeNi5: 4f-electron instability vs band structure effects

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Citation

Cabus, S., Gloos, K., Gottwick, U., Horn, S., Klemm, M., Kübler, J., et al. (1984). Thermopower of mixed-valent CeNi5: 4f-electron instability vs band structure effects. Solid State Communications, 51(11), 909-912. doi:10.1016/0038-1098(84)91099-8.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-C2AD-0
Abstract
A thermopower anomaly which has the outward appearance of those prevariously observed in mixed-valent systems is observed in mixed-valent CeNi5 and . However, by means of both band structure calculations and Cu-alloying experiments it is demonstrated that the observed anomaly is dominated by electron scattering from Ni-derived 3d states rather than by effects due to the 4f electron instability. These results dramatize a caveat which should be exercised when interpreting various observed properties of those mixed-valent systems which possess a high density of d states at the Fermi energy.