| Autor: |
Panja, Soumendra Nath, Jesche, Anton, Tang, Nan, Gegenwart, Philipp |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Phys. Rev. B 109, 205152 (2024) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.109.205152 |
| Popis: |
We present electrical resistivity measurements on the prototypical heavy-fermion metal YbRh$_{2}$Si$_{2}$ (YRS) under $a$-axis tensile and compressive strain and focus on the evolution of the resistivity maximum near 136~K that arises from the interplay of the Kondo effect and the crystal electric field (CEF) splitting. While compressive strain reduces $T_{\rm max}$, similar as previously reported for hydrostatic pressure, $T_{\rm max}$ is enhanced up to 145~K for 0.13\% tensile strain. Model calculations for the strain effect on CEF splitting in YRS reveal a negligible shift of the levels. Instead, the enhancement of the resistivity maximum indicates a 20\% increase of the Kondo temperature. This opens the perspective to access the hidden zero-field QCP in pure YRS. |
| Databáze: |
arXiv |
| Externí odkaz: |
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