Abstract
The magnetic and magnetotransport properties of metallic 1T-VTe2 single crystals were investigated at temperatures from 1.3 to 300 K and in magnetic fields up to 35 T. Upon applying a high magnetic field, it is found that the electrical resistivity displays a crossover from the logarithmic divergence of the single-impurity Kondo effect to the Fermi liquid behavior at low temperatures. The Brillouin scale of the negative magnetoresistivity above the Kondo temperature TK = 12 K indicates that the Kondo features originate from intercalated V ions, with S = 1/2. Both magnetic susceptibility and Hall effect show an anomaly around TK. By using the modified Hamann expression we successfully describe the temperature-dependent resistivity under various magnetic fields, which shows the characteristic peak below TK due to the splitting of the Kondo resonance.
| Original language | English |
|---|---|
| Article number | 125115 |
| Journal | Physical Review B |
| Volume | 103 |
| Issue number | 12 |
| DOIs | |
| State | Published - Mar 8 2021 |
| Externally published | Yes |
Funding
This work is supported by the National Natural Science Foundation of China (Grants No. A0402/11534005 and No. A0402/11674164). X.D. acknowledges support from INLs LDRD program (19P43-013FP). K.G. acknowledges support from the US DOE BES Energy Frontier Research Centre ”Thermal Energy Transport under Irradiation” (TETI). L.B. is supported by DOE-BES through Award No. DE-SC0002613. The National High Magnetic Field Laboratory is supported by the National Science Foundation Cooperative Agreement No. DMR-1644779 and the State of Florida.