One or two gaps in Mo 8 Ga 41 superconductor? Local Hall-probe magnetometry study
The magnetization properties of the endohedral cluster superconductor Mo 8 Ga 41 are studied by sensitive Hall-probe magnetometry. The temperature dependence of the lower critical magnetic field H c 1 is obtained and compared to theoretical models accounting for single-gap and two-gap superconductiv...
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| Veröffentlicht in: | Superconductor science & technology 2021-03, Vol.34 (3), p.35017 |
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| container_title | Superconductor science & technology |
| container_volume | 34 |
| creator | Marcin, M Pribulová, Z Kačmarčík, J Medvecká, Z Klein, T Yu Verchenko, V Cambel, V Šoltýs, J Samuely, P |
| description | The magnetization properties of the endohedral cluster superconductor Mo
8
Ga
41
are studied by sensitive Hall-probe magnetometry. The temperature dependence of the lower critical magnetic field
H
c
1
is obtained and compared to theoretical models accounting for single-gap and two-gap superconductivity. Data can be described by both models with minor differences. These results are confronted with our previous measurements which evidence that the system is inherently single-gap
s
-wave superconductor but minor additional phases are present also in seemingly perfect samples. We discuss how presence of such additional phases with varying size of the penetration depth and
H
c
1
field is reflected in magnetization measurements which could lead to misinterpretation of the multigap superconductivity in Mo
8
Ga
41
. |
| doi_str_mv | 10.1088/1361-6668/abd5f3 |
| format | Article |
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8
Ga
41
are studied by sensitive Hall-probe magnetometry. The temperature dependence of the lower critical magnetic field
H
c
1
is obtained and compared to theoretical models accounting for single-gap and two-gap superconductivity. Data can be described by both models with minor differences. These results are confronted with our previous measurements which evidence that the system is inherently single-gap
s
-wave superconductor but minor additional phases are present also in seemingly perfect samples. We discuss how presence of such additional phases with varying size of the penetration depth and
H
c
1
field is reflected in magnetization measurements which could lead to misinterpretation of the multigap superconductivity in Mo
8
Ga
41
.</description><identifier>ISSN: 0953-2048</identifier><identifier>EISSN: 1361-6668</identifier><identifier>DOI: 10.1088/1361-6668/abd5f3</identifier><language>eng</language><publisher>IOP Publishing</publisher><subject>Physics</subject><ispartof>Superconductor science & technology, 2021-03, Vol.34 (3), p.35017</ispartof><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1221-17ba4f28cd2ce8239ed09f55da8c60ff7886d27046c57333f14f622f3d9133613</citedby><cites>FETCH-LOGICAL-c1221-17ba4f28cd2ce8239ed09f55da8c60ff7886d27046c57333f14f622f3d9133613</cites><orcidid>0000-0002-2306-6411 ; 0000-0001-7876-8501</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27923,27924</link.rule.ids><backlink>$$Uhttps://hal.science/hal-04155865$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Marcin, M</creatorcontrib><creatorcontrib>Pribulová, Z</creatorcontrib><creatorcontrib>Kačmarčík, J</creatorcontrib><creatorcontrib>Medvecká, Z</creatorcontrib><creatorcontrib>Klein, T</creatorcontrib><creatorcontrib>Yu Verchenko, V</creatorcontrib><creatorcontrib>Cambel, V</creatorcontrib><creatorcontrib>Šoltýs, J</creatorcontrib><creatorcontrib>Samuely, P</creatorcontrib><title>One or two gaps in Mo 8 Ga 41 superconductor? Local Hall-probe magnetometry study</title><title>Superconductor science & technology</title><description>The magnetization properties of the endohedral cluster superconductor Mo
8
Ga
41
are studied by sensitive Hall-probe magnetometry. The temperature dependence of the lower critical magnetic field
H
c
1
is obtained and compared to theoretical models accounting for single-gap and two-gap superconductivity. Data can be described by both models with minor differences. These results are confronted with our previous measurements which evidence that the system is inherently single-gap
s
-wave superconductor but minor additional phases are present also in seemingly perfect samples. We discuss how presence of such additional phases with varying size of the penetration depth and
H
c
1
field is reflected in magnetization measurements which could lead to misinterpretation of the multigap superconductivity in Mo
8
Ga
41
.</description><subject>Physics</subject><issn>0953-2048</issn><issn>1361-6668</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNo9kE1LAzEYhIMoWKt3j-_Vw9q8ySabPUkp2gorRdBzSPNRK9vNkmyV_ntdKp4GhpmBeQi5RXqPVKkZcomFlFLNzMaJwM_I5N86JxNaC14wWqpLcpXzJ6WIirMJeV13HmKC4TvC1vQZdh28RFCwNFAi5EPvk42dO9ghpgdoojUtrEzbFn2KGw97s-38EPd-SEfIw8Edr8lFMG32N386Je9Pj2-LVdGsl8-LeVNYZAwLrDamDExZx6xXjNfe0ToI4YyykoZQKSUdq2gprag45wHLIBkL3NXIf4_xKbk77X6YVvdptzfpqKPZ6dW80aNHSxRCSfE1Zukpa1PMOfnwX0CqR3x6ZKVHVvqEj_8ABCVhLg</recordid><startdate>20210301</startdate><enddate>20210301</enddate><creator>Marcin, M</creator><creator>Pribulová, Z</creator><creator>Kačmarčík, J</creator><creator>Medvecká, Z</creator><creator>Klein, T</creator><creator>Yu Verchenko, V</creator><creator>Cambel, V</creator><creator>Šoltýs, J</creator><creator>Samuely, P</creator><general>IOP Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0002-2306-6411</orcidid><orcidid>https://orcid.org/0000-0001-7876-8501</orcidid></search><sort><creationdate>20210301</creationdate><title>One or two gaps in Mo 8 Ga 41 superconductor? Local Hall-probe magnetometry study</title><author>Marcin, M ; Pribulová, Z ; Kačmarčík, J ; Medvecká, Z ; Klein, T ; Yu Verchenko, V ; Cambel, V ; Šoltýs, J ; Samuely, P</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1221-17ba4f28cd2ce8239ed09f55da8c60ff7886d27046c57333f14f622f3d9133613</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Marcin, M</creatorcontrib><creatorcontrib>Pribulová, Z</creatorcontrib><creatorcontrib>Kačmarčík, J</creatorcontrib><creatorcontrib>Medvecká, Z</creatorcontrib><creatorcontrib>Klein, T</creatorcontrib><creatorcontrib>Yu Verchenko, V</creatorcontrib><creatorcontrib>Cambel, V</creatorcontrib><creatorcontrib>Šoltýs, J</creatorcontrib><creatorcontrib>Samuely, P</creatorcontrib><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Superconductor science & technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Marcin, M</au><au>Pribulová, Z</au><au>Kačmarčík, J</au><au>Medvecká, Z</au><au>Klein, T</au><au>Yu Verchenko, V</au><au>Cambel, V</au><au>Šoltýs, J</au><au>Samuely, P</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>One or two gaps in Mo 8 Ga 41 superconductor? Local Hall-probe magnetometry study</atitle><jtitle>Superconductor science & technology</jtitle><date>2021-03-01</date><risdate>2021</risdate><volume>34</volume><issue>3</issue><spage>35017</spage><pages>35017-</pages><issn>0953-2048</issn><eissn>1361-6668</eissn><abstract>The magnetization properties of the endohedral cluster superconductor Mo
8
Ga
41
are studied by sensitive Hall-probe magnetometry. The temperature dependence of the lower critical magnetic field
H
c
1
is obtained and compared to theoretical models accounting for single-gap and two-gap superconductivity. Data can be described by both models with minor differences. These results are confronted with our previous measurements which evidence that the system is inherently single-gap
s
-wave superconductor but minor additional phases are present also in seemingly perfect samples. We discuss how presence of such additional phases with varying size of the penetration depth and
H
c
1
field is reflected in magnetization measurements which could lead to misinterpretation of the multigap superconductivity in Mo
8
Ga
41
.</abstract><pub>IOP Publishing</pub><doi>10.1088/1361-6668/abd5f3</doi><orcidid>https://orcid.org/0000-0002-2306-6411</orcidid><orcidid>https://orcid.org/0000-0001-7876-8501</orcidid></addata></record> |
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| ispartof | Superconductor science & technology, 2021-03, Vol.34 (3), p.35017 |
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| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | Physics |
| title | One or two gaps in Mo 8 Ga 41 superconductor? Local Hall-probe magnetometry study |
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