Linear magnetoresistance with a universal energy scale in the strong-coupling superconductor Mo8Ga41 without quantum criticality
| العنوان: | Linear magnetoresistance with a universal energy scale in the strong-coupling superconductor Mo8Ga41 without quantum criticality |
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| المؤلفون: | Xinyou Liu, Hanghui Chen, C. N. Kuo, Swee K. Goh, S. T. Kuo, K. Y. Yip, Yue-Wen Fang, Kwing To Lai, Chin-Shan Lue, Y. J. Hu, Fedor Balakirev, Dan Sun, Weiya Zhang |
| المصدر: | Physical Review B. 102 |
| بيانات النشر: | American Physical Society (APS), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Superconductivity, Physics, Magnetoresistance, Condensed matter physics, Transition temperature, 02 engineering and technology, 021001 nanoscience & nanotechnology, Coupling (probability), 01 natural sciences, Crystal, Electrical resistivity and conductivity, Quantum critical point, 0103 physical sciences, Condensed Matter::Strongly Correlated Electrons, 010306 general physics, 0210 nano-technology, Energy (signal processing) |
| الوصف: | The recent discovery of a nonsaturating linear magnetoresistance in several correlated electron systems near a quantum critical point has revealed an interesting interplay between the linear magnetoresistance and the zero-field linear-in-temperature resistivity. These studies suggest a possible role of quantum criticality on the observed linear magnetoresistance. Here we report our discovery of a nonsaturating, linear magnetoresistance in ${\mathrm{Mo}}_{8}{\mathrm{Ga}}_{41}$, a nearly isotropic strong electron-phonon coupling superconductor with a linear-in-temperature resistivity from the transition temperature to $\ensuremath{\sim}55$ K. The growth of the resistivity in field is comparable to that in temperature, provided that both quantities are measured in the energy unit. Our data sets are remarkably similar to magnetoresistance data of the optimally doped ${\mathrm{La}}_{2\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{CuO}}_{4}$, despite the clearly different crystal and electronic structures, and the apparent absence of quantum critical physics in ${\mathrm{Mo}}_{8}{\mathrm{Ga}}_{41}$. A new empirical scaling formula is developed, which is able to capture the key features of the low-temperature magnetoresistance data of ${\mathrm{Mo}}_{8}{\mathrm{Ga}}_{41}$, as well as the data of ${\mathrm{La}}_{2\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{CuO}}_{4}$. |
| تدمد: | 2469-9969 2469-9950 |
| DOI: | 10.1103/physrevb.102.241113 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::b2a96341a2f46177e4f2f5b1838733ef https://doi.org/10.1103/physrevb.102.241113 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........b2a96341a2f46177e4f2f5b1838733ef |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24699969 24699950 |
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| DOI: | 10.1103/physrevb.102.241113 |