Abstract
We report an unconventional class of pressure-induced quantum phase transitions, possessing two bicritical points at 6.25 GPa in URhSn. This unique transformation accompanies a Fermi surface reconstruction, demarcating competing ordered phases suitably described with a localized and itinerant description of the magnetic 5f electrons. Ferromagnetic fluctuations over a wide range of temperatures and pressures in the pressure-induced low temperature phase are evidenced by a robust T5/3 temperature dependence of resistivity up to 11 GPa, which is a characteristic of an elusive marginal Fermi-liquid state.
| Original language | English |
|---|---|
| Article number | 195119 |
| Journal | Physical Review B |
| Volume | 104 |
| Issue number | 19 |
| DOIs | |
| State | Published - Nov 15 2021 |
| Externally published | Yes |
Funding
We thank V. Taufour, M. Yokoyama, Y. Tokunaga, H. Harima and Y. Ōnuki for fruitful discussions. We thank S. Nagasaki for her technical support during high-pressure experiments. We acknowledge financial support from JSPS KAKENHI Grants No. JP18F18017, No. JP19H00648, No. JP15H05882, No. JP15H05886, No.JP15K21732, JP15H05884, JP19H00646, No. JP19J20539, No. JP17K14328, and No. JP20K03851.