Superconductivity in single crystalline Pb nanowires contacted by normal metal electrodes

Jian Wang, Yi Sun, Mingliang Tian, Bangzhi Liu, Meenakshi Singh, Moses Hung-Wai Chan

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The transport properties of superconducting single crystal Pb nanowires that are 55 and 70 nm in diameter were studied by the standard four-electrode method. With normal metal electrodes, resistance-temperature and resistance-magnetic field scans show a series of resistance steps with increasing temperature and magnetic field as the wires are brought toward the normal state. The resistance-current (R-I) scans at different temperatures and magnetic fields show that the increase in R with I is punctuated with sharp steps at specific current values. A large residual resistance is observed down to 2 K. The origin of these phenomena is related to the inhomogeneity and proximity effect from the normal electrodes.

Original languageEnglish (US)
Article number035439
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume86
Issue number3
DOIs
StatePublished - Jul 24 2012

Fingerprint

Superconductivity
Nanowires
nanowires
superconductivity
Metals
Magnetic fields
Crystalline materials
Electrodes
electrodes
Temperature distribution
metals
temperature distribution
Transport properties
magnetic fields
Single crystals
Wire
inhomogeneity
transport properties
wire
single crystals

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Wang, Jian ; Sun, Yi ; Tian, Mingliang ; Liu, Bangzhi ; Singh, Meenakshi ; Chan, Moses Hung-Wai. / Superconductivity in single crystalline Pb nanowires contacted by normal metal electrodes. In: Physical Review B - Condensed Matter and Materials Physics. 2012 ; Vol. 86, No. 3.
@article{e3387b9312964e96b832bdaa53fe4a79,
title = "Superconductivity in single crystalline Pb nanowires contacted by normal metal electrodes",
abstract = "The transport properties of superconducting single crystal Pb nanowires that are 55 and 70 nm in diameter were studied by the standard four-electrode method. With normal metal electrodes, resistance-temperature and resistance-magnetic field scans show a series of resistance steps with increasing temperature and magnetic field as the wires are brought toward the normal state. The resistance-current (R-I) scans at different temperatures and magnetic fields show that the increase in R with I is punctuated with sharp steps at specific current values. A large residual resistance is observed down to 2 K. The origin of these phenomena is related to the inhomogeneity and proximity effect from the normal electrodes.",
author = "Jian Wang and Yi Sun and Mingliang Tian and Bangzhi Liu and Meenakshi Singh and Chan, {Moses Hung-Wai}",
year = "2012",
month = "7",
day = "24",
doi = "10.1103/PhysRevB.86.035439",
language = "English (US)",
volume = "86",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "3",

}

Superconductivity in single crystalline Pb nanowires contacted by normal metal electrodes. / Wang, Jian; Sun, Yi; Tian, Mingliang; Liu, Bangzhi; Singh, Meenakshi; Chan, Moses Hung-Wai.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 86, No. 3, 035439, 24.07.2012.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Superconductivity in single crystalline Pb nanowires contacted by normal metal electrodes

AU - Wang, Jian

AU - Sun, Yi

AU - Tian, Mingliang

AU - Liu, Bangzhi

AU - Singh, Meenakshi

AU - Chan, Moses Hung-Wai

PY - 2012/7/24

Y1 - 2012/7/24

N2 - The transport properties of superconducting single crystal Pb nanowires that are 55 and 70 nm in diameter were studied by the standard four-electrode method. With normal metal electrodes, resistance-temperature and resistance-magnetic field scans show a series of resistance steps with increasing temperature and magnetic field as the wires are brought toward the normal state. The resistance-current (R-I) scans at different temperatures and magnetic fields show that the increase in R with I is punctuated with sharp steps at specific current values. A large residual resistance is observed down to 2 K. The origin of these phenomena is related to the inhomogeneity and proximity effect from the normal electrodes.

AB - The transport properties of superconducting single crystal Pb nanowires that are 55 and 70 nm in diameter were studied by the standard four-electrode method. With normal metal electrodes, resistance-temperature and resistance-magnetic field scans show a series of resistance steps with increasing temperature and magnetic field as the wires are brought toward the normal state. The resistance-current (R-I) scans at different temperatures and magnetic fields show that the increase in R with I is punctuated with sharp steps at specific current values. A large residual resistance is observed down to 2 K. The origin of these phenomena is related to the inhomogeneity and proximity effect from the normal electrodes.

UR - http://www.scopus.com/inward/record.url?scp=84864587762&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84864587762&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.86.035439

DO - 10.1103/PhysRevB.86.035439

M3 - Article

VL - 86

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 3

M1 - 035439

ER -