Electric Resistance of Rare-Earth Metals and Their Alloys at High Temperatures: the Role of Magnetic Scattering

Ivliev, A. D.

doi:10.1134/s1063783420100145

Cited by 3 publications

(1 citation statement)

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“…However, the carrier mobility decrease should lead to the Seebeck coefficient enhancement. Since one of the most significant factors affecting the carrier mobility is their scattering, the greatest effect should be observed for lanthanide atoms bearing the highest effective magnetic moment [26,30,31,50]. Nevertheless, despite the fact that, in the studied series of lanthanides (Pr to Tb), gadolinium has the largest magnetic moment value, the most significant increase in Seebeck coefficient value is observed for the samarium-doped solid solution (S = 148 µV/K).…”

Section: X-ray Photoelectron Spectroscopy (Xps)mentioning

confidence: 93%

Charge Distribution in Layered Lanthanide-Doped CuCr0.99Ln0.01S2 (Ln = Pr–Tb) Thermoelectric Materials

et al. 2022

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The charge distribution study of metal atoms in CuCr0.99Ln0.01S2 (Ln = Pr–Tb) solid solutions was carried out using X-ray photoelectron spectroscopy (XPS). The analysis of the binding energy of S2p, Cu2p, Cr2p, Ln3d and Ln4d levels allows one to determine the oxidation state of atoms. Copper atoms were found to be monovalent. Chromium and lanthanide atoms were found to be in the trivalent state. Sulfur atoms were found to be in the divalent state. Cationic substitution was found to occur via an isovalent mechanism of Cr3+ to Ln3+. The obtained results were used for the interpretation of the Seebeck coefficient increase for CuCr0.99Ln0.01S2 solid solutions in contrast to the initial CuCrS2 matrix. The largest Seebeck coefficient values of 142 and 148 µV/K were observed at 500 K for CuCr0.99Sm0.01S2 and CuCr0.99Pr0.01S2, respectively. The obtained values are 1.4 times greater in comparison with those for the initial matrix (105 µV/K).

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Section: X-ray Photoelectron Spectroscopy (Xps)mentioning

confidence: 93%