منابع مشابه
Antiferromagnetic FeSe monolayer on SrTiO3: The charge doping and electric field effects
By growing monolayer FeSe on SrTiO3(001) surface, researchers obtain the highest superconducting transition-temperature for iron-based superconductor. Here, we study the antiferromagnetic (AFM) checkerboard monolayer FeSe adsorbed on SrTiO3(001) surface. We show that the system has a considerable charge transfer from SrTiO3(001) substrate to FeSe monolayer, and so has a self-constructed electri...
متن کاملHigh temperature superconducting FeSe films on SrTiO3 substrates
Interface enhanced superconductivity at two dimensional limit has become one of most intriguing research directions in condensed matter physics. Here, we report the superconducting properties of ultra-thin FeSe films with the thickness of one unit cell (1-UC) grown on conductive and insulating SrTiO3 (STO) substrates. For the 1-UC FeSe on conductive STO substrate (Nb-STO), the magnetization ver...
متن کاملBounds on Nanoscale Nematicity in Single-Layer FeSe/SrTiO3
Dennis Huang, Tatiana A. Webb, 2 Shiang Fang, Can-Li Song, ∗ Cui-Zu Chang, Jagadeesh S. Moodera, 4 Efthimios Kaxiras, 5 and Jennifer E. Hoffman 2, † Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada Francis Bitter Magnet Laboratory, Massachusetts Institute ...
متن کاملWhat makes the Tc of monolayer FeSe on SrTiO3 so high: a sign-problem-free quantum Monte Carlo study
Monolayer FeSe films grown on SrTiO3 (STO) substrate show superconducting gap-opening temperatures ([Formula: see text]) which are almost an order of magnitude higher than those of the bulk FeSe and are highest among all known Fe-based superconductors. Angle-resolved photoemission spectroscopy observed "replica bands" suggesting the importance of the interaction between FeSe electrons and STO p...
متن کاملOxygen Vacancy Induced Flat Phonon Mode at FeSe /SrTiO3 interface
A high-frequency optical phonon mode of SrTiO3 (STO) was found to assist the high-temperature superconductivity observed recently at the interface between monolayer FeSe and STO substrate. However, the origin of this mode is not clear. Through first-principles calculations, we find that there is a novel polar phonon mode on the surface layers of the STO substrate, which does not exist in the ST...
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ژورنال
عنوان ژورنال: Annual Review of Condensed Matter Physics
سال: 2017
ISSN: 1947-5454,1947-5462
DOI: 10.1146/annurev-conmatphys-031016-025242