Detail publikace

Step-edge assisted large scale FeSe monolayer growth on epitaxial Bi(2)Se(3)thin films

FIKÁČEK, J. PROCHÁZKA, P. STETSOVYCH, V. PRŮŠA, S. VONDRÁČEK, M. KORMOŠ, L. SKÁLA, T. VLAIC, P. CAHA, O. CARVA, K. ČECHAL, J. SPRINGHOLZ, G. HONOLKA, J.

Originální název

Step-edge assisted large scale FeSe monolayer growth on epitaxial Bi(2)Se(3)thin films

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Enhanced superconductivity of FeSe in the 2D limit on oxide surfaces as well as the prediction oftopological superconductivityat the interface to topological insulators makes the fabrication of Fe-chalcogenide monolayers a topic of current interest. So far superconductive properties of the latter are mostly studied by scanning tunneling spectroscopy, which can detect gaps in the local density of states as an indicator for Cooper pairing. Direct macroscopic transport properties, which can prove or falsify a true superconducting phase, are yet widely unexplored due to the difficulty to grow monolayer films with homogeneous material properties on a larger scale. Here we report on a promising route to fabricate micron-scale continuous carpets of monolayer thick FeSe on Bi(2)Se(3)topological insulators. In contrast to previous procedures based on ultraflat bulk Bi(2)Se(3)surfaces, we use molecular beam epitaxy grown Bi(2)Se(3)films with high step-edge densities (terrace widths 10-100 nm). We observe that step edges promote the almost strainless growth of coalescing FeSe domains without compromising the underlying Bi(2)Se(3)crystal structure.

Klíčová slova

Fe-chalcogenides; topological insulators; FeSe; interface superconductivity; unconventional superconductivity

Autoři

FIKÁČEK, J.; PROCHÁZKA, P.; STETSOVYCH, V.; PRŮŠA, S.; VONDRÁČEK, M.; KORMOŠ, L.; SKÁLA, T.; VLAIC, P.; CAHA, O.; CARVA, K.; ČECHAL, J.; SPRINGHOLZ, G.; HONOLKA, J.

Vydáno

1. 7. 2020

Nakladatel

IOP Publishing

Místo

BRISTOL

ISSN

1367-2630

Periodikum

NEW JOURNAL OF PHYSICS

Ročník

22

Číslo

7

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

12

Strany počet

12

URL

https://iopscience.iop.org/article/10.1088/1367-2630/ab9b59

Plný text v Digitální knihovně

http://hdl.handle.net/11012/196526

BibTex

@article{BUT165349,
  author="Jan {Fikáček} and Pavel {Procházka} and Vitalii {Stetsovych} and Stanislav {Průša} and Martin {Vondráček} and Lukáš {Kormoš} and Tomáš {Skála} and Petru {Vlaic} and Ondřej {Caha} and Karel {Carva} and Jan {Čechal} and Gunther {Springholz} and Jan {Honolka}",
  title="Step-edge assisted large scale FeSe monolayer growth on epitaxial Bi(2)Se(3)thin films",
  journal="NEW JOURNAL OF PHYSICS",
  year="2020",
  volume="22",
  number="7",
  pages="1--12",
  doi="10.1088/1367-2630/ab9b59",
  issn="1367-2630",
  url="https://iopscience.iop.org/article/10.1088/1367-2630/ab9b59"
}