Leggett's plasma resonances and two-gap structures in the CVCs of MgB$_2$ break junctions $-$ a direct evidence for a two-gap superconductivity in MgB$_2
Bulletin of the V. Tarasov Center of Chemotronics of Glass No.2, 139 (2002), ISBN 5-7237-0388-9, Mendeleev University of Chemical Technology of Russia, Moscow In the present investigation (2002) the current-voltage characteristics (CVCs) of break junctions in polycrystalline $MgB_2$ samples have bee...
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| creator | Ponomarev, Ya. G Kuzmichev, S. A Mikheev, M. G Sudakova, M. V Tchesnokov, S. N Timergaleev, N. Z Yarigin, A. V Hein, M. A Mueller, G Piel, H Bulychev, B. M Burdina, K. P Gentchel, V. K Sevastyanova, L. G Krasnosvobodtsev, S. I Varlashkin, A. V |
| description | Bulletin of the V. Tarasov Center of Chemotronics of Glass No.2,
139 (2002), ISBN 5-7237-0388-9, Mendeleev University of Chemical Technology
of Russia, Moscow In the present investigation (2002) the current-voltage characteristics
(CVCs) of break junctions in polycrystalline $MgB_2$ samples have been studied
in the temperature range $4.2 K < T < T_c$. An inelastic Cooper pair tunneling
accompanied by the emission of Leggett plasmons has been found for the first
time in $MgB_2$ Josephson contacts. A fine structure in the CVCs of $MgB_2$
Andreev point contacts caused by a resonant emission of Leggett plasmons has
been observed for the first time. An energy of the Leggett plasmon has been
estimated: $E_0$ ~ 4 meV. Distinct two-gap structures have been found in the
CVCs of $MgB_2$ tunneling contacts and $MgB_2$ Andreev point contacts with 7.5
meV $< \Delta_L |
| doi_str_mv | 10.48550/arxiv.2301.02929 |
| format | Article |
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139 (2002), ISBN 5-7237-0388-9, Mendeleev University of Chemical Technology
of Russia, Moscow In the present investigation (2002) the current-voltage characteristics
(CVCs) of break junctions in polycrystalline $MgB_2$ samples have been studied
in the temperature range $4.2 K < T < T_c$. An inelastic Cooper pair tunneling
accompanied by the emission of Leggett plasmons has been found for the first
time in $MgB_2$ Josephson contacts. A fine structure in the CVCs of $MgB_2$
Andreev point contacts caused by a resonant emission of Leggett plasmons has
been observed for the first time. An energy of the Leggett plasmon has been
estimated: $E_0$ ~ 4 meV. Distinct two-gap structures have been found in the
CVCs of $MgB_2$ tunneling contacts and $MgB_2$ Andreev point contacts with 7.5
meV $< \Delta_L <$ 11 meV and 1.5 meV $< \Delta_S <$ 2.5 meV. An intrinsic
tunneling effect (ITE) and intrinsic multiple Andreev reflections effect
(IMARE) have been observed due to the layered structure of $MgB_2$. The
obtained experimental results give a direct evidence for a two-gap
superconductivity in $MgB_2$. ("V. Tarasov's Readings", November 2002, Russia,
Moscow, conference proceedings.)]]></description><identifier>DOI: 10.48550/arxiv.2301.02929</identifier><language>eng</language><subject>Physics - Superconductivity</subject><creationdate>2023-01</creationdate><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,885</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/2301.02929$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.2301.02929$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Ponomarev, Ya. G</creatorcontrib><creatorcontrib>Kuzmichev, S. A</creatorcontrib><creatorcontrib>Mikheev, M. G</creatorcontrib><creatorcontrib>Sudakova, M. V</creatorcontrib><creatorcontrib>Tchesnokov, S. N</creatorcontrib><creatorcontrib>Timergaleev, N. Z</creatorcontrib><creatorcontrib>Yarigin, A. V</creatorcontrib><creatorcontrib>Hein, M. A</creatorcontrib><creatorcontrib>Mueller, G</creatorcontrib><creatorcontrib>Piel, H</creatorcontrib><creatorcontrib>Bulychev, B. M</creatorcontrib><creatorcontrib>Burdina, K. P</creatorcontrib><creatorcontrib>Gentchel, V. K</creatorcontrib><creatorcontrib>Sevastyanova, L. G</creatorcontrib><creatorcontrib>Krasnosvobodtsev, S. I</creatorcontrib><creatorcontrib>Varlashkin, A. V</creatorcontrib><title>Leggett's plasma resonances and two-gap structures in the CVCs of MgB$_2$ break junctions $-$ a direct evidence for a two-gap superconductivity in MgB$_2</title><description><![CDATA[Bulletin of the V. Tarasov Center of Chemotronics of Glass No.2,
139 (2002), ISBN 5-7237-0388-9, Mendeleev University of Chemical Technology
of Russia, Moscow In the present investigation (2002) the current-voltage characteristics
(CVCs) of break junctions in polycrystalline $MgB_2$ samples have been studied
in the temperature range $4.2 K < T < T_c$. An inelastic Cooper pair tunneling
accompanied by the emission of Leggett plasmons has been found for the first
time in $MgB_2$ Josephson contacts. A fine structure in the CVCs of $MgB_2$
Andreev point contacts caused by a resonant emission of Leggett plasmons has
been observed for the first time. An energy of the Leggett plasmon has been
estimated: $E_0$ ~ 4 meV. Distinct two-gap structures have been found in the
CVCs of $MgB_2$ tunneling contacts and $MgB_2$ Andreev point contacts with 7.5
meV $< \Delta_L <$ 11 meV and 1.5 meV $< \Delta_S <$ 2.5 meV. An intrinsic
tunneling effect (ITE) and intrinsic multiple Andreev reflections effect
(IMARE) have been observed due to the layered structure of $MgB_2$. The
obtained experimental results give a direct evidence for a two-gap
superconductivity in $MgB_2$. ("V. Tarasov's Readings", November 2002, Russia,
Moscow, conference proceedings.)]]></description><subject>Physics - Superconductivity</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNo90L9OwzAQx_EsDKjwAEzcEIkpxbETJxkh4p9UxFKxRlfnHAytE9lOoY_C2zZtEdNJv5M-wzeKrlI2z8o8Z7fofsx2zgVL54xXvDqPfhfUdRTCjYdhjX6D4Mj3Fq0iD2hbCN990uEAPrhRhXH6grEQPgjq99pDr-G1u48bHsPKEX7B52hVML31ECcxILTGkQpAW9PShILu3bT-q-NATvW2nWyzNWF3wE_gRXSmce3p8u_OouXjw7J-ThZvTy_13SJBWVQJYZmVSLnUUmupSiZpJRUTxLDgQperrJWK57xiIk11hqwURSUZq9pCpikvxCy6PrHHNs3gzAbdrjk0ao6NxB4GYWFM</recordid><startdate>20230107</startdate><enddate>20230107</enddate><creator>Ponomarev, Ya. G</creator><creator>Kuzmichev, S. A</creator><creator>Mikheev, M. G</creator><creator>Sudakova, M. V</creator><creator>Tchesnokov, S. N</creator><creator>Timergaleev, N. Z</creator><creator>Yarigin, A. V</creator><creator>Hein, M. A</creator><creator>Mueller, G</creator><creator>Piel, H</creator><creator>Bulychev, B. M</creator><creator>Burdina, K. P</creator><creator>Gentchel, V. K</creator><creator>Sevastyanova, L. G</creator><creator>Krasnosvobodtsev, S. I</creator><creator>Varlashkin, A. V</creator><scope>GOX</scope></search><sort><creationdate>20230107</creationdate><title>Leggett's plasma resonances and two-gap structures in the CVCs of MgB$_2$ break junctions $-$ a direct evidence for a two-gap superconductivity in MgB$_2</title><author>Ponomarev, Ya. G ; Kuzmichev, S. A ; Mikheev, M. G ; Sudakova, M. V ; Tchesnokov, S. N ; Timergaleev, N. Z ; Yarigin, A. V ; Hein, M. A ; Mueller, G ; Piel, H ; Bulychev, B. M ; Burdina, K. P ; Gentchel, V. K ; Sevastyanova, L. G ; Krasnosvobodtsev, S. I ; Varlashkin, A. V</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a679-ea848ae56f6ff6c806eb6c03e0a723f8b4d6c25290311f4a083796009d7611273</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Physics - Superconductivity</topic><toplevel>online_resources</toplevel><creatorcontrib>Ponomarev, Ya. G</creatorcontrib><creatorcontrib>Kuzmichev, S. A</creatorcontrib><creatorcontrib>Mikheev, M. G</creatorcontrib><creatorcontrib>Sudakova, M. V</creatorcontrib><creatorcontrib>Tchesnokov, S. N</creatorcontrib><creatorcontrib>Timergaleev, N. Z</creatorcontrib><creatorcontrib>Yarigin, A. V</creatorcontrib><creatorcontrib>Hein, M. A</creatorcontrib><creatorcontrib>Mueller, G</creatorcontrib><creatorcontrib>Piel, H</creatorcontrib><creatorcontrib>Bulychev, B. M</creatorcontrib><creatorcontrib>Burdina, K. P</creatorcontrib><creatorcontrib>Gentchel, V. K</creatorcontrib><creatorcontrib>Sevastyanova, L. G</creatorcontrib><creatorcontrib>Krasnosvobodtsev, S. I</creatorcontrib><creatorcontrib>Varlashkin, A. V</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Ponomarev, Ya. G</au><au>Kuzmichev, S. A</au><au>Mikheev, M. G</au><au>Sudakova, M. V</au><au>Tchesnokov, S. N</au><au>Timergaleev, N. Z</au><au>Yarigin, A. V</au><au>Hein, M. A</au><au>Mueller, G</au><au>Piel, H</au><au>Bulychev, B. M</au><au>Burdina, K. P</au><au>Gentchel, V. K</au><au>Sevastyanova, L. G</au><au>Krasnosvobodtsev, S. I</au><au>Varlashkin, A. V</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Leggett's plasma resonances and two-gap structures in the CVCs of MgB$_2$ break junctions $-$ a direct evidence for a two-gap superconductivity in MgB$_2</atitle><date>2023-01-07</date><risdate>2023</risdate><abstract><![CDATA[Bulletin of the V. Tarasov Center of Chemotronics of Glass No.2,
139 (2002), ISBN 5-7237-0388-9, Mendeleev University of Chemical Technology
of Russia, Moscow In the present investigation (2002) the current-voltage characteristics
(CVCs) of break junctions in polycrystalline $MgB_2$ samples have been studied
in the temperature range $4.2 K < T < T_c$. An inelastic Cooper pair tunneling
accompanied by the emission of Leggett plasmons has been found for the first
time in $MgB_2$ Josephson contacts. A fine structure in the CVCs of $MgB_2$
Andreev point contacts caused by a resonant emission of Leggett plasmons has
been observed for the first time. An energy of the Leggett plasmon has been
estimated: $E_0$ ~ 4 meV. Distinct two-gap structures have been found in the
CVCs of $MgB_2$ tunneling contacts and $MgB_2$ Andreev point contacts with 7.5
meV $< \Delta_L <$ 11 meV and 1.5 meV $< \Delta_S <$ 2.5 meV. An intrinsic
tunneling effect (ITE) and intrinsic multiple Andreev reflections effect
(IMARE) have been observed due to the layered structure of $MgB_2$. The
obtained experimental results give a direct evidence for a two-gap
superconductivity in $MgB_2$. ("V. Tarasov's Readings", November 2002, Russia,
Moscow, conference proceedings.)]]></abstract><doi>10.48550/arxiv.2301.02929</doi><oa>free_for_read</oa></addata></record> |
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| title | Leggett's plasma resonances and two-gap structures in the CVCs of MgB$_2$ break junctions $-$ a direct evidence for a two-gap superconductivity in MgB$_2 |
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