Tuning a magnetic energy scale with pressure and field in UTe2
Abstract When a fragile ordered state is suppressed to zero temperature, a quantum phase transition occurs, which is often marked by the appearance of unconventional superconductivity. While the quantum critical point can be hidden, the influence of the quantum criticality extends to fairly high tem...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Communications Materials |
| Online Access: | https://doi.org/10.1038/s43246-024-00713-y |
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| author | Hyunsoo Kim I-Lin Liu Wen-Chen Lin Yun Suk Eo Sheng Ran Nicholas P. Butch Johnpierre Paglione |
| author_facet | Hyunsoo Kim I-Lin Liu Wen-Chen Lin Yun Suk Eo Sheng Ran Nicholas P. Butch Johnpierre Paglione |
| author_sort | Hyunsoo Kim |
| collection | DOAJ |
| description | Abstract When a fragile ordered state is suppressed to zero temperature, a quantum phase transition occurs, which is often marked by the appearance of unconventional superconductivity. While the quantum critical point can be hidden, the influence of the quantum criticality extends to fairly high temperatures, manifesting non-Fermi liquid behavior in a wide range of the field-temperature-pressure phase space. Here, we report the tuning of a magnetic energy scale in the heavy-fermion superconductor UTe2, previously identified with a peak in the c-axis electrical transport temperature dependence, using applied hydrostatic pressures and a-axis-oriented magnetic fields as complementary (and opposing) tuning parameters: the characteristic peak in c-axis resistivity decreases in temperature with applied pressure before vanishing near the critical pressure of 15 kbar (1.5 GPa), while the application of field shifts the peak to a higher temperature and broadens it under all studied pressures. At the critical pressure, the transport behavior deviates from Fermi liquid behavior, exhibiting a nearly linear temperature dependence of resistivity with an enhanced pre-factor. Our results shed light on the microscopic origin of the c-axis resistivity peak and provide a clear picture of magnetic energy scale evolution relevant to quantum criticality in UTe2. |
| format | Article |
| id | doaj-art-be5e3d291f4548278f32b3007564d4f3 |
| institution | Kabale University |
| issn | 2662-4443 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Materials |
| spelling | doaj-art-be5e3d291f4548278f32b3007564d4f32025-01-12T12:32:46ZengNature PortfolioCommunications Materials2662-44432025-01-01611710.1038/s43246-024-00713-yTuning a magnetic energy scale with pressure and field in UTe2Hyunsoo Kim0I-Lin Liu1Wen-Chen Lin2Yun Suk Eo3Sheng Ran4Nicholas P. Butch5Johnpierre Paglione6Department of Physics, Missouri University of Science and TechnologyMaryland Quantum Materials Center, Department of Physics, University of MarylandMaryland Quantum Materials Center, Department of Physics, University of MarylandMaryland Quantum Materials Center, Department of Physics, University of MarylandMaryland Quantum Materials Center, Department of Physics, University of MarylandMaryland Quantum Materials Center, Department of Physics, University of MarylandMaryland Quantum Materials Center, Department of Physics, University of MarylandAbstract When a fragile ordered state is suppressed to zero temperature, a quantum phase transition occurs, which is often marked by the appearance of unconventional superconductivity. While the quantum critical point can be hidden, the influence of the quantum criticality extends to fairly high temperatures, manifesting non-Fermi liquid behavior in a wide range of the field-temperature-pressure phase space. Here, we report the tuning of a magnetic energy scale in the heavy-fermion superconductor UTe2, previously identified with a peak in the c-axis electrical transport temperature dependence, using applied hydrostatic pressures and a-axis-oriented magnetic fields as complementary (and opposing) tuning parameters: the characteristic peak in c-axis resistivity decreases in temperature with applied pressure before vanishing near the critical pressure of 15 kbar (1.5 GPa), while the application of field shifts the peak to a higher temperature and broadens it under all studied pressures. At the critical pressure, the transport behavior deviates from Fermi liquid behavior, exhibiting a nearly linear temperature dependence of resistivity with an enhanced pre-factor. Our results shed light on the microscopic origin of the c-axis resistivity peak and provide a clear picture of magnetic energy scale evolution relevant to quantum criticality in UTe2.https://doi.org/10.1038/s43246-024-00713-y |
| spellingShingle | Hyunsoo Kim I-Lin Liu Wen-Chen Lin Yun Suk Eo Sheng Ran Nicholas P. Butch Johnpierre Paglione Tuning a magnetic energy scale with pressure and field in UTe2 Communications Materials |
| title | Tuning a magnetic energy scale with pressure and field in UTe2 |
| title_full | Tuning a magnetic energy scale with pressure and field in UTe2 |
| title_fullStr | Tuning a magnetic energy scale with pressure and field in UTe2 |
| title_full_unstemmed | Tuning a magnetic energy scale with pressure and field in UTe2 |
| title_short | Tuning a magnetic energy scale with pressure and field in UTe2 |
| title_sort | tuning a magnetic energy scale with pressure and field in ute2 |
| url | https://doi.org/10.1038/s43246-024-00713-y |
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