muSR and Magnetometry Study of the Type-I Superconductor BeAu
We present muon spin rotation and relaxation (muSR) measurements as well as demagnetising field corrected magnetisation measurements on polycrystalline samples of the noncentrosymmetric superconductor BeAu. From muSR measurements in a transverse field, we determine that BeAu is a type-I superconduct...
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| creator | Beare, James Nugent, Matthew Wilson, Murray Cai, Yipeng Munsie, Timothy Amon, Alfred Leithe-Jasper, Andreas Gong, Zizhou Guo, Shengli Guguchia, Zurab Grin, Yuri Uemura, Yasutomo Svanidze, Eteri Luke, Graeme |
| description | We present muon spin rotation and relaxation (muSR) measurements as well as demagnetising field corrected magnetisation measurements on polycrystalline samples of the noncentrosymmetric superconductor BeAu. From muSR measurements in a transverse field, we determine that BeAu is a type-I superconductor with Hc = 256 Oe, amending the previous understanding of the compound as a type-II superconductor. To account for demagnetising effects in magnetisation measurements, we produce an ellipsoidal sample, for which a demagnetisation factor can be calculated. After correcting for demagnetising effects, our magnetisation results are in agreement with our muSR measurements. Using both types of measurements we construct a phase diagram from T = 30 mK to Tc = 3.25 K. We then study the effect of hydrostatic pressure and find that 450 MPa decreases Tc by 34 mK, comparable to the change seen in type-I elemental superconductors Sn, In and Ta, suggesting BeAu is far from a quantum critical point accessible by the application of pressure. |
| doi_str_mv | 10.48550/arxiv.1902.00073 |
| format | Article |
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From muSR measurements in a transverse field, we determine that BeAu is a type-I superconductor with Hc = 256 Oe, amending the previous understanding of the compound as a type-II superconductor. To account for demagnetising effects in magnetisation measurements, we produce an ellipsoidal sample, for which a demagnetisation factor can be calculated. After correcting for demagnetising effects, our magnetisation results are in agreement with our muSR measurements. Using both types of measurements we construct a phase diagram from T = 30 mK to Tc = 3.25 K. We then study the effect of hydrostatic pressure and find that 450 MPa decreases Tc by 34 mK, comparable to the change seen in type-I elemental superconductors Sn, In and Ta, suggesting BeAu is far from a quantum critical point accessible by the application of pressure.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1902.00073</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Critical point ; Demagnetization ; Hydrostatic pressure ; Magnetic measurement ; Magnetization ; Muon spin relaxation ; Muon spin rotation ; Phase diagrams ; Physics - Superconductivity ; Pressure effects</subject><ispartof>arXiv.org, 2019-01</ispartof><rights>2019. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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From muSR measurements in a transverse field, we determine that BeAu is a type-I superconductor with Hc = 256 Oe, amending the previous understanding of the compound as a type-II superconductor. To account for demagnetising effects in magnetisation measurements, we produce an ellipsoidal sample, for which a demagnetisation factor can be calculated. After correcting for demagnetising effects, our magnetisation results are in agreement with our muSR measurements. Using both types of measurements we construct a phase diagram from T = 30 mK to Tc = 3.25 K. We then study the effect of hydrostatic pressure and find that 450 MPa decreases Tc by 34 mK, comparable to the change seen in type-I elemental superconductors Sn, In and Ta, suggesting BeAu is far from a quantum critical point accessible by the application of pressure.</description><subject>Critical point</subject><subject>Demagnetization</subject><subject>Hydrostatic pressure</subject><subject>Magnetic measurement</subject><subject>Magnetization</subject><subject>Muon spin relaxation</subject><subject>Muon spin rotation</subject><subject>Phase diagrams</subject><subject>Physics - Superconductivity</subject><subject>Pressure effects</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GOX</sourceid><recordid>eNotj0tLxDAYRYMgOIzzA1wZcN2aZ5MsXIyDj4ERwXZfkuarzmAfpo3Yf2-dcXXhcjncg9AVJanQUpJbG3723yk1hKWEEMXP0IJxThMtGLtAq2E4zDXLFJOSL9BdE_M3bFuPX-x7C2PXwBgmnI_RT7ir8fgBuJh6SLY4jz2Eqmt9rMYu4HtYx0t0XtvPAVb_uUTF40OxeU52r0_bzXqXWMl4orTLKDhZZXVmhcuIrox3XIAz0itpjVSgKDXKaAKCSaM1c9RaLw0QWwu-RNcn7NGt7MO-sWEq_xzLo-O8uDkt-tB9RRjG8tDF0M6fSkaVnOki4_wXI1tStA</recordid><startdate>20190131</startdate><enddate>20190131</enddate><creator>Beare, James</creator><creator>Nugent, Matthew</creator><creator>Wilson, Murray</creator><creator>Cai, Yipeng</creator><creator>Munsie, Timothy</creator><creator>Amon, Alfred</creator><creator>Leithe-Jasper, Andreas</creator><creator>Gong, Zizhou</creator><creator>Guo, Shengli</creator><creator>Guguchia, Zurab</creator><creator>Grin, Yuri</creator><creator>Uemura, Yasutomo</creator><creator>Svanidze, Eteri</creator><creator>Luke, Graeme</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20190131</creationdate><title>muSR and Magnetometry Study of the Type-I Superconductor BeAu</title><author>Beare, James ; Nugent, Matthew ; Wilson, Murray ; Cai, Yipeng ; Munsie, Timothy ; Amon, Alfred ; Leithe-Jasper, Andreas ; Gong, Zizhou ; Guo, Shengli ; Guguchia, Zurab ; Grin, Yuri ; Uemura, Yasutomo ; Svanidze, Eteri ; Luke, Graeme</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a523-78b61eb5c6f6a4b608c9db34eb95d75a957e71197980e4259882b1aad59e0af43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Critical point</topic><topic>Demagnetization</topic><topic>Hydrostatic pressure</topic><topic>Magnetic measurement</topic><topic>Magnetization</topic><topic>Muon spin relaxation</topic><topic>Muon spin rotation</topic><topic>Phase diagrams</topic><topic>Physics - Superconductivity</topic><topic>Pressure effects</topic><toplevel>online_resources</toplevel><creatorcontrib>Beare, James</creatorcontrib><creatorcontrib>Nugent, Matthew</creatorcontrib><creatorcontrib>Wilson, Murray</creatorcontrib><creatorcontrib>Cai, Yipeng</creatorcontrib><creatorcontrib>Munsie, Timothy</creatorcontrib><creatorcontrib>Amon, Alfred</creatorcontrib><creatorcontrib>Leithe-Jasper, Andreas</creatorcontrib><creatorcontrib>Gong, Zizhou</creatorcontrib><creatorcontrib>Guo, Shengli</creatorcontrib><creatorcontrib>Guguchia, Zurab</creatorcontrib><creatorcontrib>Grin, Yuri</creatorcontrib><creatorcontrib>Uemura, Yasutomo</creatorcontrib><creatorcontrib>Svanidze, Eteri</creatorcontrib><creatorcontrib>Luke, Graeme</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Beare, James</au><au>Nugent, Matthew</au><au>Wilson, Murray</au><au>Cai, Yipeng</au><au>Munsie, Timothy</au><au>Amon, Alfred</au><au>Leithe-Jasper, Andreas</au><au>Gong, Zizhou</au><au>Guo, Shengli</au><au>Guguchia, Zurab</au><au>Grin, Yuri</au><au>Uemura, Yasutomo</au><au>Svanidze, Eteri</au><au>Luke, Graeme</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>muSR and Magnetometry Study of the Type-I Superconductor BeAu</atitle><jtitle>arXiv.org</jtitle><date>2019-01-31</date><risdate>2019</risdate><eissn>2331-8422</eissn><abstract>We present muon spin rotation and relaxation (muSR) measurements as well as demagnetising field corrected magnetisation measurements on polycrystalline samples of the noncentrosymmetric superconductor BeAu. From muSR measurements in a transverse field, we determine that BeAu is a type-I superconductor with Hc = 256 Oe, amending the previous understanding of the compound as a type-II superconductor. To account for demagnetising effects in magnetisation measurements, we produce an ellipsoidal sample, for which a demagnetisation factor can be calculated. After correcting for demagnetising effects, our magnetisation results are in agreement with our muSR measurements. Using both types of measurements we construct a phase diagram from T = 30 mK to Tc = 3.25 K. We then study the effect of hydrostatic pressure and find that 450 MPa decreases Tc by 34 mK, comparable to the change seen in type-I elemental superconductors Sn, In and Ta, suggesting BeAu is far from a quantum critical point accessible by the application of pressure.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1902.00073</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Critical point Demagnetization Hydrostatic pressure Magnetic measurement Magnetization Muon spin relaxation Muon spin rotation Phase diagrams Physics - Superconductivity Pressure effects |
| title | muSR and Magnetometry Study of the Type-I Superconductor BeAu |
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