Two-dimensional superfluid density in an alkali metal-organic solvent intercalated iron selenide superconductor Li(C5H5N)0.2Fe2Se2
P. K. Biswas , Anna Krztoń-Maziopa , R. Khasanov , H. Luetkens , E. Pomjakushina , K. Conder , A. Amato
AbstractWe report the low-temperature electronic and magnetic properties of the alkali metal-organic solvent intercalated iron selenide superconductor Li(C5H5N)0.2Fe2Se2 using muon-spin-spectroscopy measurements. The zero-field muon spin relaxation (μSR) results indicate that nearly half of the sample is magnetically ordered and spatially phase separated from the superconducting region. The transverse-field μSR results reveal that the superfluid density of Li(C5H5N)0.2Fe2Se2 is two dimensional in nature. The temperature dependence of the penetration depth λ(T) can be explained using a two-gap s-wave model. This implies that, despite the 2D nature of the superfluid density, the symmetry of the superconducting gap remains unaltered to the parent compound FeSe.
|Journal series||Physical Review Letters, ISSN 0031-9007|
|Publication size in sheets||0.3|
|Score|| = 45.0, 31-01-2020, ArticleFromJournal|
= 45.0, 31-01-2020, ArticleFromJournal
|Publication indicators||= 15; = 16; : 2013 = 2.781; : 2013 = 7.728 (2) - 2013=7.411 (5)|
|Citation count*||12 (2015-11-27)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.