Signature of Superconductivity in Orthorhombic CoSb Monolayer Films on SrTiO3(001)

Cui Ding; Guanming Gong; Yanzhao Liu; Fawei Zheng; Zhiyu Zhang; Haohao Yang; Zhe Li; Ying Xing; Jun Ge; Ke He; Wei Li; Ping Zhang; Jian Wang; Lili Wang; Qi Kun Xue

doi:10.1021/acsnano.9b04223

Signature of Superconductivity in Orthorhombic CoSb Monolayer Films on SrTiO₃(001)

Cui Ding, Guanming Gong, Yanzhao Liu, Fawei Zheng, Zhiyu Zhang, Haohao Yang, Zhe Li, Ying Xing, Jun Ge, Ke He, Wei Li, Ping Zhang, Jian Wang, Lili Wang, Qi Kun Xue^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

We prepare orthorhombic CoSb monolayer films on SrTiO₃(001) substrate by molecular beam epitaxy and observe symmetric gap around the Fermi level with coherence peaks at ± (6-7) meV by in situ scanning tunneling spectroscopy. Ex situ magnetization measurements of the films protected by Te and Si films consistently reveal a diamagnetic transition at 14 K. These results suggest the occurrence of superconductivity in orthorhombic CoSb monolayers on SrTiO₃(001).

Original language	English
Pages (from-to)	10434-10439
Number of pages	6
Journal	ACS Nano
Volume	13
Issue number	9
DOIs	https://doi.org/10.1021/acsnano.9b04223
Publication status	Published - 24 Sept 2019
Externally published	Yes

Keywords

CoSb/SrTiO
interface superconductor
magnetization measurement
molecular beam epitaxy
scanning tunneling microscopy/spectroscopy

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10.1021/acsnano.9b04223

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title = "Signature of Superconductivity in Orthorhombic CoSb Monolayer Films on SrTiO3(001)",

abstract = "We prepare orthorhombic CoSb monolayer films on SrTiO3(001) substrate by molecular beam epitaxy and observe symmetric gap around the Fermi level with coherence peaks at ± (6-7) meV by in situ scanning tunneling spectroscopy. Ex situ magnetization measurements of the films protected by Te and Si films consistently reveal a diamagnetic transition at 14 K. These results suggest the occurrence of superconductivity in orthorhombic CoSb monolayers on SrTiO3(001).",

keywords = "CoSb/SrTiO, interface superconductor, magnetization measurement, molecular beam epitaxy, scanning tunneling microscopy/spectroscopy",

author = "Cui Ding and Guanming Gong and Yanzhao Liu and Fawei Zheng and Zhiyu Zhang and Haohao Yang and Zhe Li and Ying Xing and Jun Ge and Ke He and Wei Li and Ping Zhang and Jian Wang and Lili Wang and Xue, {Qi Kun}",

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doi = "10.1021/acsnano.9b04223",

language = "English",

volume = "13",

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journal = "ACS Nano",

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TY - JOUR

T1 - Signature of Superconductivity in Orthorhombic CoSb Monolayer Films on SrTiO3(001)

AU - Ding, Cui

AU - Gong, Guanming

AU - Liu, Yanzhao

AU - Zheng, Fawei

AU - Zhang, Zhiyu

AU - Yang, Haohao

AU - Li, Zhe

AU - Xing, Ying

AU - Ge, Jun

AU - He, Ke

AU - Li, Wei

AU - Zhang, Ping

AU - Wang, Jian

AU - Wang, Lili

AU - Xue, Qi Kun

PY - 2019/9/24

Y1 - 2019/9/24

N2 - We prepare orthorhombic CoSb monolayer films on SrTiO3(001) substrate by molecular beam epitaxy and observe symmetric gap around the Fermi level with coherence peaks at ± (6-7) meV by in situ scanning tunneling spectroscopy. Ex situ magnetization measurements of the films protected by Te and Si films consistently reveal a diamagnetic transition at 14 K. These results suggest the occurrence of superconductivity in orthorhombic CoSb monolayers on SrTiO3(001).

AB - We prepare orthorhombic CoSb monolayer films on SrTiO3(001) substrate by molecular beam epitaxy and observe symmetric gap around the Fermi level with coherence peaks at ± (6-7) meV by in situ scanning tunneling spectroscopy. Ex situ magnetization measurements of the films protected by Te and Si films consistently reveal a diamagnetic transition at 14 K. These results suggest the occurrence of superconductivity in orthorhombic CoSb monolayers on SrTiO3(001).

KW - CoSb/SrTiO

KW - interface superconductor

KW - magnetization measurement

KW - molecular beam epitaxy

KW - scanning tunneling microscopy/spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=85072556786&partnerID=8YFLogxK

U2 - 10.1021/acsnano.9b04223

DO - 10.1021/acsnano.9b04223

M3 - Article

C2 - 31460747

AN - SCOPUS:85072556786

SN - 1936-0851

VL - 13

SP - 10434

EP - 10439

JO - ACS Nano

JF - ACS Nano

IS - 9

ER -

Signature of Superconductivity in Orthorhombic CoSb Monolayer Films on SrTiO₃(001)

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Keywords

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