<i>μ</i>SR Study of Unconventional Pairing Symmetry in the Quasi-1D Na<sub>2</sub>Cr<sub>3</sub>As<sub>3</sub> Superconductor
We report the finding of a novel pairing state in a newly discovered superconductor Na<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semant...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Magnetochemistry |
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| Online Access: | https://www.mdpi.com/2312-7481/9/3/70 |
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| author | Amitava Bhattacharyya Devashibhai Adroja Yu Feng Debarchan Das Pabitra Kumar Biswas Tanmoy Das Jun Zhao |
| author_facet | Amitava Bhattacharyya Devashibhai Adroja Yu Feng Debarchan Das Pabitra Kumar Biswas Tanmoy Das Jun Zhao |
| author_sort | Amitava Bhattacharyya |
| collection | DOAJ |
| description | We report the finding of a novel pairing state in a newly discovered superconductor Na<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>Cr<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula>As<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula>. This material has a non-centrosymmetric quasi-one-dimensional crystal structure and is superconducting at <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>T</mi><mi mathvariant="normal">C</mi></msub><mo>∼</mo></mrow></semantics></math></inline-formula> 8.0 K. We find that the magnetic penetration depth data suggests the presence of a nodal line <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>p</mi><mi>z</mi></msub></semantics></math></inline-formula>-wave pairing state with zero magnetic moment using transverse-field muon-spin rotation (TF-<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>μ</mi></semantics></math></inline-formula>SR) measurements. The nodal gap observed in Na<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>Cr<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula>As<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> compound is consistent with that observed in isostructural (K,Cs)<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>Cr<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula>As<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> compounds using TF-<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>μ</mi></semantics></math></inline-formula>SR measurements. The observed pairing state is consistent with a three-band model spin-fluctuation calculation, which reveals the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>S</mi><mi>z</mi></msub><mo>=</mo><mn>0</mn></mrow></semantics></math></inline-formula> spin-triplet pairing state with the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo form="prefix">sin</mo><msub><mi>k</mi><mi>z</mi></msub></mrow></semantics></math></inline-formula> pairing symmetry. The long-sought search for chiral superconductivity with topological applications could be aided by such a novel triplet <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>S</mi><mi>z</mi></msub><mo>=</mo><mn>0</mn></mrow></semantics></math></inline-formula><i>p</i>-wave pairing state. |
| first_indexed | 2024-03-11T06:16:34Z |
| format | Article |
| id | doaj.art-b6601fc72cee48b5af06bfc74069194c |
| institution | Directory Open Access Journal |
| issn | 2312-7481 |
| language | English |
| last_indexed | 2024-03-11T06:16:34Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Magnetochemistry |
| spelling | doaj.art-b6601fc72cee48b5af06bfc74069194c2023-11-17T12:16:30ZengMDPI AGMagnetochemistry2312-74812023-02-01937010.3390/magnetochemistry9030070<i>μ</i>SR Study of Unconventional Pairing Symmetry in the Quasi-1D Na<sub>2</sub>Cr<sub>3</sub>As<sub>3</sub> SuperconductorAmitava Bhattacharyya0Devashibhai Adroja1Yu Feng2Debarchan Das3Pabitra Kumar Biswas4Tanmoy Das5Jun Zhao6Department of Physics, Ramakrishna Mission Vivekananda Educational and Research Institute, Belur Math, Howrah 711202, IndiaISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, UKState Key Laboratory of Surface Physics, Department of Physics, Fudan University, Shanghai 200433, ChinaLaboratory for Muon Spin Spectroscopy, Paul Scherrer Institute, CH-5232 Villigen, SwitzerlandISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, UKDepartment of Physics, Indian Institute of Science, Bangalore 560012, IndiaState Key Laboratory of Surface Physics, Department of Physics, Fudan University, Shanghai 200433, ChinaWe report the finding of a novel pairing state in a newly discovered superconductor Na<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>Cr<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula>As<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula>. This material has a non-centrosymmetric quasi-one-dimensional crystal structure and is superconducting at <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>T</mi><mi mathvariant="normal">C</mi></msub><mo>∼</mo></mrow></semantics></math></inline-formula> 8.0 K. We find that the magnetic penetration depth data suggests the presence of a nodal line <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>p</mi><mi>z</mi></msub></semantics></math></inline-formula>-wave pairing state with zero magnetic moment using transverse-field muon-spin rotation (TF-<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>μ</mi></semantics></math></inline-formula>SR) measurements. The nodal gap observed in Na<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>Cr<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula>As<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> compound is consistent with that observed in isostructural (K,Cs)<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>Cr<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula>As<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> compounds using TF-<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>μ</mi></semantics></math></inline-formula>SR measurements. The observed pairing state is consistent with a three-band model spin-fluctuation calculation, which reveals the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>S</mi><mi>z</mi></msub><mo>=</mo><mn>0</mn></mrow></semantics></math></inline-formula> spin-triplet pairing state with the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo form="prefix">sin</mo><msub><mi>k</mi><mi>z</mi></msub></mrow></semantics></math></inline-formula> pairing symmetry. The long-sought search for chiral superconductivity with topological applications could be aided by such a novel triplet <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>S</mi><mi>z</mi></msub><mo>=</mo><mn>0</mn></mrow></semantics></math></inline-formula><i>p</i>-wave pairing state.https://www.mdpi.com/2312-7481/9/3/70low dimensional systemssuperconducting gap structuremuon spin spectroscopy |
| spellingShingle | Amitava Bhattacharyya Devashibhai Adroja Yu Feng Debarchan Das Pabitra Kumar Biswas Tanmoy Das Jun Zhao <i>μ</i>SR Study of Unconventional Pairing Symmetry in the Quasi-1D Na<sub>2</sub>Cr<sub>3</sub>As<sub>3</sub> Superconductor Magnetochemistry low dimensional systems superconducting gap structure muon spin spectroscopy |
| title | <i>μ</i>SR Study of Unconventional Pairing Symmetry in the Quasi-1D Na<sub>2</sub>Cr<sub>3</sub>As<sub>3</sub> Superconductor |
| title_full | <i>μ</i>SR Study of Unconventional Pairing Symmetry in the Quasi-1D Na<sub>2</sub>Cr<sub>3</sub>As<sub>3</sub> Superconductor |
| title_fullStr | <i>μ</i>SR Study of Unconventional Pairing Symmetry in the Quasi-1D Na<sub>2</sub>Cr<sub>3</sub>As<sub>3</sub> Superconductor |
| title_full_unstemmed | <i>μ</i>SR Study of Unconventional Pairing Symmetry in the Quasi-1D Na<sub>2</sub>Cr<sub>3</sub>As<sub>3</sub> Superconductor |
| title_short | <i>μ</i>SR Study of Unconventional Pairing Symmetry in the Quasi-1D Na<sub>2</sub>Cr<sub>3</sub>As<sub>3</sub> Superconductor |
| title_sort | i μ i sr study of unconventional pairing symmetry in the quasi 1d na sub 2 sub cr sub 3 sub as sub 3 sub superconductor |
| topic | low dimensional systems superconducting gap structure muon spin spectroscopy |
| url | https://www.mdpi.com/2312-7481/9/3/70 |
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