Atomic layers deposited on semiconductor substrates introduce a platform for the realization of the extended electronic Hubbard model, where the consideration of electronic repulsion beyond the on-site term is paramount. Recently, the onset of superconductivity at 4.7 K has been reported in the hole-doped triangular lattice of tin atoms on a silicon substrate. Through renormalization group methods designed for weak and intermediate coupling, we investigate the nature of the superconducting instability in hole-doped Sn/Si(111). We find that the extended Hubbard nature of interactions is crucial to yield triplet pairing, which is f-wave (p-wave) for moderate (higher) hole doping. In light of persisting challenges to tailor triplet pairing in an electronic material, our finding promises to pave unprecedented ways for engineering unconventional triplet superconductivity.
Description
Triplet superconductivity from nonlocal coulomb repulsion in an atomic Sn layer deposited onto a Si(111) substrate
%0 Journal Article
%1 PhysRevLett.128.167002
%A Wolf, Sebastian
%A Di Sante, Domenico
%A Schwemmer, Tilman
%A Thomale, Ronny
%A Rachel, Stephan
%D 2022
%I American Physical Society
%J Phys. Rev. Lett.
%K a
%N 16
%P 167002
%R 10.1103/PhysRevLett.128.167002
%T Triplet superconductivity from nonlocal coulomb repulsion in an atomic Sn layer deposited onto a Si(111) substrate
%U https://link.aps.org/doi/10.1103/PhysRevLett.128.167002
%V 128
%X Atomic layers deposited on semiconductor substrates introduce a platform for the realization of the extended electronic Hubbard model, where the consideration of electronic repulsion beyond the on-site term is paramount. Recently, the onset of superconductivity at 4.7 K has been reported in the hole-doped triangular lattice of tin atoms on a silicon substrate. Through renormalization group methods designed for weak and intermediate coupling, we investigate the nature of the superconducting instability in hole-doped Sn/Si(111). We find that the extended Hubbard nature of interactions is crucial to yield triplet pairing, which is f-wave (p-wave) for moderate (higher) hole doping. In light of persisting challenges to tailor triplet pairing in an electronic material, our finding promises to pave unprecedented ways for engineering unconventional triplet superconductivity.
@article{PhysRevLett.128.167002,
abstract = {Atomic layers deposited on semiconductor substrates introduce a platform for the realization of the extended electronic Hubbard model, where the consideration of electronic repulsion beyond the on-site term is paramount. Recently, the onset of superconductivity at 4.7 K has been reported in the hole-doped triangular lattice of tin atoms on a silicon substrate. Through renormalization group methods designed for weak and intermediate coupling, we investigate the nature of the superconducting instability in hole-doped Sn/Si(111). We find that the extended Hubbard nature of interactions is crucial to yield triplet pairing, which is f-wave (p-wave) for moderate (higher) hole doping. In light of persisting challenges to tailor triplet pairing in an electronic material, our finding promises to pave unprecedented ways for engineering unconventional triplet superconductivity.},
added-at = {2023-05-03T14:46:14.000+0200},
author = {Wolf, Sebastian and Di Sante, Domenico and Schwemmer, Tilman and Thomale, Ronny and Rachel, Stephan},
biburl = {https://www.bibsonomy.org/bibtex/2dc7c985d9907108a340f33efa8733f55/ctqmat},
day = 22,
description = {Triplet superconductivity from nonlocal coulomb repulsion in an atomic Sn layer deposited onto a Si(111) substrate},
doi = {10.1103/PhysRevLett.128.167002},
interhash = {2c57e8b57a239137c2ac69fd68fb39c0},
intrahash = {dc7c985d9907108a340f33efa8733f55},
journal = {Phys. Rev. Lett.},
keywords = {a},
month = {04},
number = 16,
numpages = {6},
pages = 167002,
publisher = {American Physical Society},
timestamp = {2023-05-03T14:46:14.000+0200},
title = {Triplet superconductivity from nonlocal coulomb repulsion in an atomic Sn layer deposited onto a Si(111) substrate},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.128.167002},
volume = 128,
year = 2022
}