Magnetic-field-induced superconductivity in a two-dimensional organic conductor

Nature
S UjiH Kobayashi

Abstract

The application of a sufficiently strong magnetic field to a superconductor will, in general, destroy the superconducting state. Two mechanisms are responsible for this. The first is the Zeeman effect, which breaks apart the paired electrons if they are in a spin-singlet (but not a spin-triplet) state. The second is the so-called 'orbital' effect, whereby the vortices penetrate into the superconductors and the energy gain due to the formation of the paired electrons is lost. For the case of layered, two-dimensional superconductors, such as the high-Tc copper oxides, the orbital effect is reduced when the applied magnetic field is parallel to the conducting layers. Here we report resistance and magnetic-torque experiments on single crystals of the quasi-two-dimensional organic conductor lambda-(BETS)2FeCl4, where BETS is bis(ethylenedithio)tetraselenafulvalene. We find that for magnetic fields applied exactly parallel to the conducting layers of the crystals, superconductivity is induced for fields above 17 T at a temperature of 0.1 K. The resulting phase diagram indicates that the transition temperature increases with magnetic field, that is, the superconducting state is further stabilized with magnetic field.

References

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Citations

Nov 22, 2011·Inorganic Chemistry·Alexander M WhyteNeil Robertson
Dec 23, 2011·Journal of the American Chemical Society·Yuki IdobataHayao Kobayashi
Sep 6, 2012·Journal of the American Chemical Society·Toshio NaitoKatsuya Inoue
Oct 9, 2012·Journal of the American Chemical Society·Mitsuhiko MaesatoTatsuro Imakubo
Jun 6, 2012·The Journal of Physical Chemistry. a·Kyoung Chul KoJin Yong Lee
Apr 4, 2013·The Journal of Physical Chemistry. a·Kyoung Chul KoJin Yong Lee
Mar 30, 2010·Nature Nanotechnology·K ClarkS-W Hla
Mar 30, 2010·Nature Nanotechnology·James S Brooks
Feb 7, 2012·Proceedings of the National Academy of Sciences of the United States of America·S HaravifardT F Rosenbaum
Jan 17, 2015·The Journal of Chemical Physics·Daeheum ChoJin Yong Lee
Jun 3, 2011·The Journal of Physical Chemistry. B·Kyoung Chul KoJin Yong Lee
Aug 20, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Xiao-Dan ZhengTong-Bu Lu
Mar 14, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Dongsheng LiuXiaoZeng You
Aug 10, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Kiyotaka MitsumotoHiroki Oshio
Jan 30, 2015·Inorganic Chemistry·Wataru KosakaHitoshi Miyasaka
Jul 17, 2015·Angewandte Chemie·Genta KawaguchiJames S Brooks
May 26, 2011·Chemistry, an Asian Journal·Hayao KobayashiHiroyuki Tajima
Jun 1, 2011·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Gunzi Saito, Yukihiro Yoshida
May 13, 2015·Physical Chemistry Chemical Physics : PCCP·Debojit BhattacharyaDouglas J Klein
Nov 30, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Masayuki NiheiHiroki Oshio
Dec 5, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Fabrice PointillartLahcène Ouahab
Jun 11, 2016·The Journal of Organic Chemistry·Prodipta SarbadhikaryAnirban Misra
Oct 26, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·B ZhangT Mori
Oct 26, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Miki NishiMasaki Matsuda

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