Kfe2as2 stm
Web27 okt. 2015 · Scanning tunneling spectroscopy and angle-resolved photoemission spectroscopy have been investigated on single-crystal samples of KFe2As2. A Van Hove singularity (VHS) has been directly observed just a few meV below the Fermi level (EF) of superconducting KFe2As2, which locates in the middle of the principal axes of the first … Web12 jul. 2013 · Using resistivity, heat-capacity, thermal-expansion, and susceptibility measurements we study the normal-state behavior of KFe2As2. Both the Sommerfeld coefficient (γ≈103 mJ mol(-1) K(-2)) and the Pauli susceptibility (χ≈4×10(-4)) are strongly enhanced, which confirm the existence of heavy quasiparticles inferred from previous de …
Kfe2as2 stm
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Web7 mrt. 2012 · High-quality KFe2As2 (K122) single crystals synthesized by different techniques have been studied by magnetization and specific heat (SH) measurements. There are 2 types of samples both affected... WebWe report on a band structure calculation and de Haas-van Alphen measure ements of KFe 2 As 2.Three cylindrical Fermi surfaces are found. Effective masses of electrons range from 6 to 18m e, m e being the free electron mass. Remarkable discrepancies between the calculated and observed Fermi surface areas and the large mass enhancement (≳3) …
Web4 mrt. 2024 · In this article, we present a milliKelvin scanning tunneling microscopy (STM) study on RbFe 2 As 2 single crystals. Compared to its sister compound KFe 2 As 2, … http://wdxy.xynu.edu.cn/info/1035/4827.htm
Web14 sep. 2012 · KFe 2 As 2 has been suggested to have a d -wave gap, similar to cuprate superconductors. Okazaki et al. (p. 1314) use laser-based angle-resolved photoemission spectroscopy (ARPES) to map out the superconducting gap on three Fermi surfaces (FS) of … Web17 jun. 2011 · Fig. 1 STM characterization of the as-grown FeSe films.The bright spots correspond to the Se atoms in the top layer. a and b correspond to either of Fe-Fe bond directions. The same convention is used for a and b axes throughout. (C) Temperature dependence of differential conductance spectra (setpoint, 10 mV, 0.1 nA).(D) Schematic …
Webence in KFe2As2 superconductors revealed by STM/STS measurements HAI-HU WEN, DELONG FANG, ZENGYI DU, ZHENYU WANG, HUAN YANG, XIAXIN DING, Nanjing …
WebAbstract: G16.00005: Observation of van Hove singularity and quasiparticle interference in KFe2As2 superconductors revealed by STM/STS measurements. 12:27 PM–12:39 PM Preview Abstract Abstract . Authors: Hai-Hu Wen (Nanjing University) Delong Fang (Nanjing University) Zengyi Du (Nanjing University) Zhenyu Wang underscore remove item from arrayhttp://iop.cas.cn/xshd/xshy/202405/P020240514532422669659.pdf thoughts for the week funnyWebOur ultrahigh-resolution laser angle-resolved photoemission spectroscopy unveils that KFe 2 As 2 is a nodal s-wave superconductor with highly unusual FS-selective multi-gap … thoughts for the week for church bulletinsWebOur ultrahigh-resolution laser angle-resolved photoemission spectroscopy unveils that KFe 2 As 2 is a nodal s-wave superconductor with highly unusual FS-selective multi-gap structure: a nodeless gap on the inner FS, an unconventional gap with "octet-line nodes" on the middle FS, and an almost-zero gap on the outer FS. underscore remove from arrayWebA van Hove singularity (vHs) has been directly observed just a few meV below the Fermi level E_F of superconducting KFe2As2, which locates in the middle of the principle axes … thoughts for the new yearWeb赵俊课题组在重空穴掺杂的铁基超导体KFe2As2中发现中子-自旋共振态. 超导电性指的是材料在特定的转变温度之下，电阻完全消失的现象。. 以Hg、Pb和Nb3Sn等简单金属和合 … thoughts for the weekWebWe report on a band structure calculation and de Haas-van Alphen measure ements of KFe 2 As 2.Three cylindrical Fermi surfaces are found. Effective masses of electrons range … underscores fishmonger