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Upper critical field peculiarities in the cubic superconductor LaRu4As12
Electrical resistivity of the filled skutterudite compound LaRu 4 As 12 was investigated both as a function of temperature and magnetic field. Upon lowering temperature below around 0.85 T c ≈ 9K, the upper critical field increases quasilinearly with the slope (− dH c2 / dT )=1.11 T/K, i.e. , signif...
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| Published in: | Journal of the Korean Physical Society 2013, 62(10), , pp.1555-1557 |
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| container_title | Journal of the Korean Physical Society |
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| creator | Cichorek, Tomasz Bochenek, Lukasz Wawryk, Ryszard Henkie, Zygmunt |
| description | Electrical resistivity of the filled skutterudite compound LaRu
4
As
12
was investigated both as a function of temperature and magnetic field. Upon lowering temperature below around 0.85
T
c
≈ 9K, the upper critical field increases quasilinearly with the slope (−
dH
c2
/
dT
)=1.11 T/K,
i.e.
, significantly faster than in the vicinity of
T
c
where (−
dH
c2
/
dT
)
T
c
= 0.66T/K was found. As a consequence, a positive curvature emerges whose size is very similar to those observed for anisotropic superconductors. Anticipating a weakly anisotropic Fermi surface in the cubic compound LaRu
4
As
12
, we related the anomaly in
Hc
2
(
T
) to multiband effects rather than to a strong anisotropy of a single energy gap. |
| doi_str_mv | 10.3938/jkps.62.1555 |
| format | article |
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4
As
12
was investigated both as a function of temperature and magnetic field. Upon lowering temperature below around 0.85
T
c
≈ 9K, the upper critical field increases quasilinearly with the slope (−
dH
c2
/
dT
)=1.11 T/K,
i.e.
, significantly faster than in the vicinity of
T
c
where (−
dH
c2
/
dT
)
T
c
= 0.66T/K was found. As a consequence, a positive curvature emerges whose size is very similar to those observed for anisotropic superconductors. Anticipating a weakly anisotropic Fermi surface in the cubic compound LaRu
4
As
12
, we related the anomaly in
Hc
2
(
T
) to multiband effects rather than to a strong anisotropy of a single energy gap.</description><identifier>ISSN: 0374-4884</identifier><identifier>EISSN: 1976-8524</identifier><identifier>DOI: 10.3938/jkps.62.1555</identifier><language>eng</language><publisher>Seoul: The Korean Physical Society</publisher><subject>Mathematical and Computational Physics ; Particle and Nuclear Physics ; Physics ; Physics and Astronomy ; Theoretical ; 물리학</subject><ispartof>Journal of the Korean Physical Society, 2013, 62(10), , pp.1555-1557</ispartof><rights>The Korean Physical Society 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c263t-61a515edf019e0d452a214e821a1ea1aca75f887026fe9cecc2a52a82479ebe23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART001819714$$DAccess content in National Research Foundation of Korea (NRF)$$Hfree_for_read</backlink></links><search><creatorcontrib>Cichorek, Tomasz</creatorcontrib><creatorcontrib>Bochenek, Lukasz</creatorcontrib><creatorcontrib>Wawryk, Ryszard</creatorcontrib><creatorcontrib>Henkie, Zygmunt</creatorcontrib><title>Upper critical field peculiarities in the cubic superconductor LaRu4As12</title><title>Journal of the Korean Physical Society</title><addtitle>Journal of the Korean Physical Society</addtitle><description>Electrical resistivity of the filled skutterudite compound LaRu
4
As
12
was investigated both as a function of temperature and magnetic field. Upon lowering temperature below around 0.85
T
c
≈ 9K, the upper critical field increases quasilinearly with the slope (−
dH
c2
/
dT
)=1.11 T/K,
i.e.
, significantly faster than in the vicinity of
T
c
where (−
dH
c2
/
dT
)
T
c
= 0.66T/K was found. As a consequence, a positive curvature emerges whose size is very similar to those observed for anisotropic superconductors. Anticipating a weakly anisotropic Fermi surface in the cubic compound LaRu
4
As
12
, we related the anomaly in
Hc
2
(
T
) to multiband effects rather than to a strong anisotropy of a single energy gap.</description><subject>Mathematical and Computational Physics</subject><subject>Particle and Nuclear Physics</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Theoretical</subject><subject>물리학</subject><issn>0374-4884</issn><issn>1976-8524</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNpt0E9LwzAYBvAgCs7pzQ-Qowc787_pcQx1g4IwtnPI0jczW21L0h789rbOo6cHXn488D4IPVKy4AXXL6dzlxaKLaiU8grNaJGrTEsmrtGM8FxkQmtxi-5SOhEiOM_VDK33XQcRuxj64GyNfYC6wh24oQ52OkLCocH9J2A3HILDaRi9a5tqcH0bcWm3g1gmyu7Rjbd1goe_nKP92-tutc7Kj_fNallmjineZ4paSSVUntACSCUks4wK0IxaCpZaZ3Pptc4JUx4KB84xOxrNRF7AARifo6dLbxO9ObtgWht-89iaczTL7W5jKNFETfT5Ql1sU4rgTRfDl43fIzDTYGYazChmpsFGnl14GllzhGhO7RCb8Zn__Q-Tj24Y</recordid><startdate>20130501</startdate><enddate>20130501</enddate><creator>Cichorek, Tomasz</creator><creator>Bochenek, Lukasz</creator><creator>Wawryk, Ryszard</creator><creator>Henkie, Zygmunt</creator><general>The Korean Physical Society</general><general>한국물리학회</general><scope>AAYXX</scope><scope>CITATION</scope><scope>ACYCR</scope></search><sort><creationdate>20130501</creationdate><title>Upper critical field peculiarities in the cubic superconductor LaRu4As12</title><author>Cichorek, Tomasz ; Bochenek, Lukasz ; Wawryk, Ryszard ; Henkie, Zygmunt</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c263t-61a515edf019e0d452a214e821a1ea1aca75f887026fe9cecc2a52a82479ebe23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Mathematical and Computational Physics</topic><topic>Particle and Nuclear Physics</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Theoretical</topic><topic>물리학</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cichorek, Tomasz</creatorcontrib><creatorcontrib>Bochenek, Lukasz</creatorcontrib><creatorcontrib>Wawryk, Ryszard</creatorcontrib><creatorcontrib>Henkie, Zygmunt</creatorcontrib><collection>CrossRef</collection><collection>Korean Citation Index</collection><jtitle>Journal of the Korean Physical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cichorek, Tomasz</au><au>Bochenek, Lukasz</au><au>Wawryk, Ryszard</au><au>Henkie, Zygmunt</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Upper critical field peculiarities in the cubic superconductor LaRu4As12</atitle><jtitle>Journal of the Korean Physical Society</jtitle><stitle>Journal of the Korean Physical Society</stitle><date>2013-05-01</date><risdate>2013</risdate><volume>62</volume><issue>10</issue><spage>1555</spage><epage>1557</epage><pages>1555-1557</pages><issn>0374-4884</issn><eissn>1976-8524</eissn><abstract>Electrical resistivity of the filled skutterudite compound LaRu
4
As
12
was investigated both as a function of temperature and magnetic field. Upon lowering temperature below around 0.85
T
c
≈ 9K, the upper critical field increases quasilinearly with the slope (−
dH
c2
/
dT
)=1.11 T/K,
i.e.
, significantly faster than in the vicinity of
T
c
where (−
dH
c2
/
dT
)
T
c
= 0.66T/K was found. As a consequence, a positive curvature emerges whose size is very similar to those observed for anisotropic superconductors. Anticipating a weakly anisotropic Fermi surface in the cubic compound LaRu
4
As
12
, we related the anomaly in
Hc
2
(
T
) to multiband effects rather than to a strong anisotropy of a single energy gap.</abstract><cop>Seoul</cop><pub>The Korean Physical Society</pub><doi>10.3938/jkps.62.1555</doi><tpages>3</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0374-4884 |
| ispartof | Journal of the Korean Physical Society, 2013, 62(10), , pp.1555-1557 |
| issn | 0374-4884 1976-8524 |
| language | eng |
| recordid | cdi_nrf_kci_oai_kci_go_kr_ARTI_108062 |
| source | Springer Nature |
| subjects | Mathematical and Computational Physics Particle and Nuclear Physics Physics Physics and Astronomy Theoretical 물리학 |
| title | Upper critical field peculiarities in the cubic superconductor LaRu4As12 |
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