Intermediate valence in single crystals of (Lu1−xY bx)3Rh4Ge13 (0 ≤ x ≤ 1)
Single crystals of (Lu1−xY bx)3Rh4Ge13 were characterized by magnetization, specific heat, and electrical resistivity measurements. Doping Yb into the non-magnetic Lu3Rh4Ge13 compound tunes this cubic system’s properties from a superconductor with disordered metal normal state (x < 0.05) to a Kon...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2015-04-01
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| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/1.4913742 |
| Summary: | Single crystals of (Lu1−xY bx)3Rh4Ge13 were characterized by magnetization, specific heat, and electrical resistivity measurements. Doping Yb into the non-magnetic Lu3Rh4Ge13 compound tunes this cubic system’s properties from a superconductor with disordered metal normal state (x < 0.05) to a Kondo for 0.05 ≤ x ≤0.2 and intermediate valence at the highest Yb concentrations. The evidence for intermediate Yb valence comes from a broad maximum in the magnetic susceptibility and X-ray photoelectron spectroscopy. Furthermore, the resistivity displays a local maximum at finite temperatures at intermediate compositions x, followed by apparent metallic behavior closest to the Yb end compound in the series. |
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| ISSN: | 2166-532X |