arXiv Superconductivity
arXiv Superconductivity
3 years ago

Superconductivity in potassium doped 2,2

$-bipyridine.
An-Jun Qin, Ren-Shu Wang, Kai Zhang, Xiao-Jia Chen

Organic compounds are always promising candidates of superconductors with high transition temperatures. We examine this proposal by choosing 2,2

$-bipyridine solely composed by C, H, and N atoms. The presence of Messiner effect with a transition temperature of 7.2 K in this material upon potassium doping is demonstrated by the $dc$ magnetic susceptibility measurements. The real part of the $ac$ susceptibility exhibits the same transition temperature as that in $dc$ magnetization, and a sharp peak appeared in the imaginary part indicates the formation of the weakly linked superconducting vortex current. The occurence of superconductivity is further supported by the resistance drop at the transition together with its suppression by the applied magnetic fields. The superconducting phase is identified to be K$_3$-2,2
$-bipyridine from the analysis of Raman scattering spectra. This work not only opens an encouraging window for finding superconductivity after optoelectronics in 2,2
$-bipyridine-based materials but also offers an example to realize superconductivity from conducting polymers and their derivatives.

Publisher URL: http://arxiv.org/abs/1801.06320

DOI: arXiv:1801.06320v1

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$-bipyridine.","abstract":"

Organic compounds are always promising candidates of superconductors with\nhigh transition temperatures. We examine this proposal by choosing\n2,2; window.__REDUX_STATE__ = {"feed":{"scrollPos":0,"openAccess":false,"performRefetch":{}},"history":{"historyChanges":0},"onboarding":{"stepsList":[{"stepId":"type","stepName":"What kind of researcher are you?","stepDesc":"","options":[]},{"stepId":"Role","stepName":"What role describes you the best?","stepDesc":"","options":[]},{"stepId":"Org","stepName":"Where do you work or study?","stepDesc":""},{"stepId":"ra","stepName":"Research Areas","stepDesc":"Select the research areas you are interested in","options":[]},{"stepId":"topics","stepName":"Topics","stepDesc":"Select the topics you are interested in","options":[]},{"stepId":"publications","stepName":"Publications","stepDesc":"We have selected some popular publications for you to follow","options":[]},{"stepId":"feeds","stepName":"Feeds","stepDesc":"We have created this feed based on your interests, you can edit and add more from the side menu","options":[]}],"step":1,"loading":false,"loadingText":"Loading...","selections":[{"name":"type","selection":null,"type":"single","mandatory":true},{"name":"role","selection":null,"type":"single","mandatory":true},{"name":"work_study","selection":null,"type":"single","mandatory":false},{"name":"ra","selection":[],"type":"multiple","mandatory":true},{"name":"topics","selection":[],"type":"multiple","mandatory":true},{"name":"publications","selection":[],"type":"multiple","mandatory":false},{"name":"feeds","selection":[],"type":"multiple","mandatory":false}],"topicsNextCursor":null,"topicsFetchingNext":false}};

arXiv Superconductivity
arXiv Superconductivity
3 years ago

Superconductivity in potassium doped 2,2

$-bipyridine.
An-Jun Qin, Ren-Shu Wang, Kai Zhang, Xiao-Jia Chen

Organic compounds are always promising candidates of superconductors with high transition temperatures. We examine this proposal by choosing 2,2

$-bipyridine solely composed by C, H, and N atoms. The presence of Messiner effect with a transition temperature of 7.2 K in this material upon potassium doping is demonstrated by the $dc$ magnetic susceptibility measurements. The real part of the $ac$ susceptibility exhibits the same transition temperature as that in $dc$ magnetization, and a sharp peak appeared in the imaginary part indicates the formation of the weakly linked superconducting vortex current. The occurence of superconductivity is further supported by the resistance drop at the transition together with its suppression by the applied magnetic fields. The superconducting phase is identified to be K$_3$-2,2
$-bipyridine from the analysis of Raman scattering spectra. This work not only opens an encouraging window for finding superconductivity after optoelectronics in 2,2
$-bipyridine-based materials but also offers an example to realize superconductivity from conducting polymers and their derivatives.

Publisher URL: http://arxiv.org/abs/1801.06320

DOI: arXiv:1801.06320v1

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$-bipyridine solely composed by C, H, and N atoms. The presence of\nMessiner effect with a transition temperature of 7.2 K in this material upon\npotassium doping is demonstrated by the $dc$ magnetic susceptibility\nmeasurements. The real part of the $ac$ susceptibility exhibits the same\ntransition temperature as that in $dc$ magnetization, and a sharp peak appeared\nin the imaginary part indicates the formation of the weakly linked\nsuperconducting vortex current. The occurence of superconductivity is further\nsupported by the resistance drop at the transition together with its\nsuppression by the applied magnetic fields. The superconducting phase is\nidentified to be K$_3$-2,2; window.__REDUX_STATE__ = {"feed":{"scrollPos":0,"openAccess":false,"performRefetch":{}},"history":{"historyChanges":0},"onboarding":{"stepsList":[{"stepId":"type","stepName":"What kind of researcher are you?","stepDesc":"","options":[]},{"stepId":"Role","stepName":"What role describes you the best?","stepDesc":"","options":[]},{"stepId":"Org","stepName":"Where do you work or study?","stepDesc":""},{"stepId":"ra","stepName":"Research Areas","stepDesc":"Select the research areas you are interested in","options":[]},{"stepId":"topics","stepName":"Topics","stepDesc":"Select the topics you are interested in","options":[]},{"stepId":"publications","stepName":"Publications","stepDesc":"We have selected some popular publications for you to follow","options":[]},{"stepId":"feeds","stepName":"Feeds","stepDesc":"We have created this feed based on your interests, you can edit and add more from the side menu","options":[]}],"step":1,"loading":false,"loadingText":"Loading...","selections":[{"name":"type","selection":null,"type":"single","mandatory":true},{"name":"role","selection":null,"type":"single","mandatory":true},{"name":"work_study","selection":null,"type":"single","mandatory":false},{"name":"ra","selection":[],"type":"multiple","mandatory":true},{"name":"topics","selection":[],"type":"multiple","mandatory":true},{"name":"publications","selection":[],"type":"multiple","mandatory":false},{"name":"feeds","selection":[],"type":"multiple","mandatory":false}],"topicsNextCursor":null,"topicsFetchingNext":false}};
arXiv Superconductivity
arXiv Superconductivity
3 years ago

Superconductivity in potassium doped 2,2

$-bipyridine.
An-Jun Qin, Ren-Shu Wang, Kai Zhang, Xiao-Jia Chen

Organic compounds are always promising candidates of superconductors with high transition temperatures. We examine this proposal by choosing 2,2

$-bipyridine solely composed by C, H, and N atoms. The presence of Messiner effect with a transition temperature of 7.2 K in this material upon potassium doping is demonstrated by the $dc$ magnetic susceptibility measurements. The real part of the $ac$ susceptibility exhibits the same transition temperature as that in $dc$ magnetization, and a sharp peak appeared in the imaginary part indicates the formation of the weakly linked superconducting vortex current. The occurence of superconductivity is further supported by the resistance drop at the transition together with its suppression by the applied magnetic fields. The superconducting phase is identified to be K$_3$-2,2
$-bipyridine from the analysis of Raman scattering spectra. This work not only opens an encouraging window for finding superconductivity after optoelectronics in 2,2
$-bipyridine-based materials but also offers an example to realize superconductivity from conducting polymers and their derivatives.

Publisher URL: http://arxiv.org/abs/1801.06320

DOI: arXiv:1801.06320v1

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Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.

$-bipyridine from the analysis of Raman scattering\nspectra. This work not only opens an encouraging window for finding\nsuperconductivity after optoelectronics in 2,2; window.__REDUX_STATE__ = {"feed":{"scrollPos":0,"openAccess":false,"performRefetch":{}},"history":{"historyChanges":0},"onboarding":{"stepsList":[{"stepId":"type","stepName":"What kind of researcher are you?","stepDesc":"","options":[]},{"stepId":"Role","stepName":"What role describes you the best?","stepDesc":"","options":[]},{"stepId":"Org","stepName":"Where do you work or study?","stepDesc":""},{"stepId":"ra","stepName":"Research Areas","stepDesc":"Select the research areas you are interested in","options":[]},{"stepId":"topics","stepName":"Topics","stepDesc":"Select the topics you are interested in","options":[]},{"stepId":"publications","stepName":"Publications","stepDesc":"We have selected some popular publications for you to follow","options":[]},{"stepId":"feeds","stepName":"Feeds","stepDesc":"We have created this feed based on your interests, you can edit and add more from the side menu","options":[]}],"step":1,"loading":false,"loadingText":"Loading...","selections":[{"name":"type","selection":null,"type":"single","mandatory":true},{"name":"role","selection":null,"type":"single","mandatory":true},{"name":"work_study","selection":null,"type":"single","mandatory":false},{"name":"ra","selection":[],"type":"multiple","mandatory":true},{"name":"topics","selection":[],"type":"multiple","mandatory":true},{"name":"publications","selection":[],"type":"multiple","mandatory":false},{"name":"feeds","selection":[],"type":"multiple","mandatory":false}],"topicsNextCursor":null,"topicsFetchingNext":false}};
arXiv Superconductivity
arXiv Superconductivity
3 years ago

Superconductivity in potassium doped 2,2

$-bipyridine.
An-Jun Qin, Ren-Shu Wang, Kai Zhang, Xiao-Jia Chen

Organic compounds are always promising candidates of superconductors with high transition temperatures. We examine this proposal by choosing 2,2

$-bipyridine solely composed by C, H, and N atoms. The presence of Messiner effect with a transition temperature of 7.2 K in this material upon potassium doping is demonstrated by the $dc$ magnetic susceptibility measurements. The real part of the $ac$ susceptibility exhibits the same transition temperature as that in $dc$ magnetization, and a sharp peak appeared in the imaginary part indicates the formation of the weakly linked superconducting vortex current. The occurence of superconductivity is further supported by the resistance drop at the transition together with its suppression by the applied magnetic fields. The superconducting phase is identified to be K$_3$-2,2
$-bipyridine from the analysis of Raman scattering spectra. This work not only opens an encouraging window for finding superconductivity after optoelectronics in 2,2
$-bipyridine-based materials but also offers an example to realize superconductivity from conducting polymers and their derivatives.

Publisher URL: http://arxiv.org/abs/1801.06320

DOI: arXiv:1801.06320v1

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Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.

$-bipyridine-based materials\nbut also offers an example to realize superconductivity from conducting\npolymers and their derivatives.\n

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arXiv Superconductivity
arXiv Superconductivity
3 years ago

Superconductivity in potassium doped 2,2

$-bipyridine.
An-Jun Qin, Ren-Shu Wang, Kai Zhang, Xiao-Jia Chen

Organic compounds are always promising candidates of superconductors with high transition temperatures. We examine this proposal by choosing 2,2

$-bipyridine solely composed by C, H, and N atoms. The presence of Messiner effect with a transition temperature of 7.2 K in this material upon potassium doping is demonstrated by the $dc$ magnetic susceptibility measurements. The real part of the $ac$ susceptibility exhibits the same transition temperature as that in $dc$ magnetization, and a sharp peak appeared in the imaginary part indicates the formation of the weakly linked superconducting vortex current. The occurence of superconductivity is further supported by the resistance drop at the transition together with its suppression by the applied magnetic fields. The superconducting phase is identified to be K$_3$-2,2
$-bipyridine from the analysis of Raman scattering spectra. This work not only opens an encouraging window for finding superconductivity after optoelectronics in 2,2
$-bipyridine-based materials but also offers an example to realize superconductivity from conducting polymers and their derivatives.

Publisher URL: http://arxiv.org/abs/1801.06320

DOI: arXiv:1801.06320v1

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Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.