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Superconductivity in a single layer alkali-doped FeSe: a weakly coupled two-leg ladder system
Wei Li, Hao Ding, Pengfei Zhang +10
We prepare single layer potassium-doped iron selenide (110) film by molecular beam expitaxy. Such a single layer film can be viewed as a two-dimensional system composed of weakly c…
KFe_2Se_2 is the parent compound of K-doped iron selenide superconductors
Wei Li, Hao Ding, Zhi Li +9
We elucidate the existing controversies in the newly discovered K-doped iron selenide (KxFe2-ySe2-z) superconductors. The stoichiometric KFe2Se2 with \surd2\times\surd2 charge orde…
Suppression of Superconductivity by Twin Boundaries in FeSe
Can-Li Song, Yi-Lin Wang, Ye-Ping Jiang +6
Low-temperature scanning tunneling microscopy and spectroscopy are employed to investigate twin boundaries in stoichiometric FeSe films grown by molecular beam epitaxy. Twin bounda…
Weak Antilocalization and Conductance Fluctuation in a Sub-micrometer-sized Wire of Epitaxial Bi2Se3
Sadashige Matsuo, Tomohiro Koyama, Kazutoshi Shimamura +9
In this study, we address the phase coherent transport in a sub-micrometer-sized Hall bar made of epitaxial Bi2Se3 thin film by probing the weak antilocalization (WAL) and the magn…