{"id":110327,"date":"2020-11-11T21:22:48","date_gmt":"2020-11-11T18:22:48","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/connecting-two-classes-of-unconventional-superconductors\/"},"modified":"2020-11-11T21:22:48","modified_gmt":"2020-11-11T18:22:48","slug":"connecting-two-classes-of-unconventional-superconductors","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/connecting-two-classes-of-unconventional-superconductors\/","title":{"rendered":"#Connecting two classes of unconventional superconductors"},"content":{"rendered":"

“#Connecting two classes of unconventional superconductors<\/strong>”<\/p>\n

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\n Schematic temperature-pressure phase diagram of CeFeAsO. Credit: MPI CPfS
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The understanding of unconventional superconductivity is one of the most challenging and fascinating tasks of solid-state physics. Different classes of unconventional superconductors share that superconductivity emerges near a magnetic phase despite that the underlying physics is different. Two of these unconventional materials are the heavy-fermion and the iron-based superconductors.<\/p>\n

Researcher from the Max Planck Institute for Chemical Physics of Solids app<\/a>lied large hydrostatic pressures to tiny single crystals of CeFeAsO, a non-superconducting parent compound to iron-based superconductors, using diamond anvil pressure cells. By electrical, magnetic and structural measurements they showed that upon increasing the applied pressure, the material characteristics change from that of an iron-pnictide material to that of a heavy-fermion metal. <\/p>\n

Surprisingly, a narrow superconducting phase emerges in the boundary region between the typical iron-pnictide spin-density-wave magnetism and a Ce-based Kondo-regime. This suggests that the two major phenomena characterizing iron-pnictides and heavy-fermions, spin-density-wave magnetism and the Kondo-effect, work together to produce superconductivity in CeFeAsO.<\/p>\n

This work is published in Physical Review Letters<\/i> and has been selected by the editors to be a PRL Editors’ Suggestion.<\/p>\n\n

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Interfaces the key in atomically-thin, ‘high-temperature’ superconductors\n <\/p><\/div>\n

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\n More information:<\/strong>
\n K. Mydeen et al, Electron Doping of the Iron-Arsenide Superconductor CeFeAsO Controlled by Hydrostatic Pressure, Physical Review Letters<\/i> (2020). DOI: 10.1103\/PhysRevLett.125.207001<\/a><\/p><\/div>\n
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\n Max Planck Society
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Citation<\/strong>:
\n Connecting two classes of unconventional superconductors (2020, November 11)
\n retrieved 11 November 2020
\n from https:\/\/phys.org\/news<\/a>\/2020-11-classes-unconventional-superconductors.html<\/p>\n

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\n part may be reproduced without the written permission. The content is provided for information purposes only.<\/p><\/div>\n<\/p><\/div>\n