# Disorder-induced suppression of superconductivity in theSi(111)−(7×3)-In surface: Scanning tunneling microscopy study

@article{Yoshizawa2015DisorderinducedSO,
title={Disorder-induced suppression of superconductivity in theSi(111)−(7×3)-In surface: Scanning tunneling microscopy study},
author={Shunsuke Yoshizawa and Howon Kim and Yukio Hasegawa and Takashi Uchihashi},
journal={Physical Review B},
year={2015},
volume={92},
pages={041410}
}
The critical effect of disorder on the two-dimensional (2D) surface superconductor Si(111)-($\sqrt{7}\times\sqrt{3}$)-In is clarified by comparing two regions with different degrees of disorder. Low-temperature scanning tunneling microscopy measurements reveal that superconductivity is retained in the less disordered region, judging from the characteristic differential conductance ($dI/dV$) spectra and from the formation of vortices under magnetic fields. In striking contrast, the absence of… Expand
10 Citations

#### Figures and Tables from this paper

Influence of disorder on superconductivity in the Si(111)- 7× 3-In surface
To uncover the critical effect of disorder on superconductivity, the ideal method is to visualize the microscopic crystalline deficiencies in real space while measuring the macroscopicExpand
Superconductivity of metal-induced surface reconstructions on silicon
Recent progress in superconducting metal-induced surface reconstructions on silicon is reviewed, mainly focusing on the results of the author's group. After a brief introduction of anExpand
Electronic and transport properties of Pb-dense reconstructions on Si(100)
Abstract Electronic and transport properties of the dense Pb/Si(100) reconstructions, 2 × 1-Pb with 1.5 ML (monolayer) of Pb and c(4 × 4)-Pb with ∼ 1.875 (15/8) ML of Pb, have been explored usingExpand
Phonon limited superconducting correlations in metallic nanograins
• Materials Science, Medicine
• Scientific reports
• 2015
It is demonstrated that strong e-ph scattering smears the peak structure in the electronic density-of-states of a metallic grain and enhances the electron mass, and thereby limits the highest Tc achievable by quantum confinement. Expand
Superconducting single-atomic-layer Tl-Pb compounds on Ge(111) and Si(111) surfaces
• T. Nakamura, +4 authors S. Hasegawa
• Materials Science
• Applied Surface Science
• 2019
Abstract The set of known single-atomic-layer (SAL) superconductors has been limited so far by a few examples, including Si(111)-hex- 7 × 3 -In reconstruction, Si(111)-SIC-Pb and -HIC-Pb phases, andExpand
Superconducting single-atomic-layer Tl-Pb compounds on Ge(111) and Si(111) surfaces
The set of known single-atomic-layer (SAL) superconductors has been limited so far by a few examples, including Si(111)-hex× 7 3 -In reconstruction, Si(111)-SIC-Pb and -HIC-Pb phases, and Si(111) × 3Expand
Atomically thin half-van der Waals metals enabled by confinement heteroepitaxy
Large-area, environmentally stable, single-crystal 2D gallium, indium and tin that are stabilized at the interface of epitaxial graphene and silicon carbide that demonstrate compelling superconducting properties are demonstrated. Expand