Superconductivity and Shubnikov - de Haas effect in polycrystalline Cd 3 As 2 thin films
In this study we observed the reproducible superconducting state in Cd As thin films without any external stimuli. Comparison with our previous results reveals similar qualitative behavior for films synthesized by different methods, while the difference in the values of the critical parameters clear...
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| Veröffentlicht in: | Scientific reports 2020-03, Vol.10 (1), p.4601 |
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| creator | Oveshnikov, Leonid N Davydov, Alexander B Suslov, Alexey V Ril', Alexey I Marenkin, Sergey F Vasiliev, Alexander L Aronzon, Boris A |
| description | In this study we observed the reproducible superconducting state in Cd
As
thin films without any external stimuli. Comparison with our previous results reveals similar qualitative behavior for films synthesized by different methods, while the difference in the values of the critical parameters clearly shows the possibility to control this state. The X-ray diffraction measurements demonstrate the presence of the tetragonal Cd
As
crystal phase in studied films. Measurements of high-field magnetoresistance reveal pronounced Shubnikov - de Haas oscillations. The analysis of these oscillations suggests that, due to high carrier concentration in studied Cd
As
films, the initial Dirac semimetal phase may be partially suppressed, which, however, does not contradict with possible topological nature of the observed superconductivity. |
| format | Article |
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As
thin films without any external stimuli. Comparison with our previous results reveals similar qualitative behavior for films synthesized by different methods, while the difference in the values of the critical parameters clearly shows the possibility to control this state. The X-ray diffraction measurements demonstrate the presence of the tetragonal Cd
As
crystal phase in studied films. Measurements of high-field magnetoresistance reveal pronounced Shubnikov - de Haas oscillations. The analysis of these oscillations suggests that, due to high carrier concentration in studied Cd
As
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As
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As
crystal phase in studied films. Measurements of high-field magnetoresistance reveal pronounced Shubnikov - de Haas oscillations. The analysis of these oscillations suggests that, due to high carrier concentration in studied Cd
As
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As
thin films without any external stimuli. Comparison with our previous results reveals similar qualitative behavior for films synthesized by different methods, while the difference in the values of the critical parameters clearly shows the possibility to control this state. The X-ray diffraction measurements demonstrate the presence of the tetragonal Cd
As
crystal phase in studied films. Measurements of high-field magnetoresistance reveal pronounced Shubnikov - de Haas oscillations. The analysis of these oscillations suggests that, due to high carrier concentration in studied Cd
As
films, the initial Dirac semimetal phase may be partially suppressed, which, however, does not contradict with possible topological nature of the observed superconductivity.</abstract><cop>England</cop><pmid>32165644</pmid></addata></record> |
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| title | Superconductivity and Shubnikov - de Haas effect in polycrystalline Cd 3 As 2 thin films |
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