Two-Band Superconductivity in [Formula presented]

M. Iavarone; G. Karapetrov; A. E. Koshelev; W. K. Kwok; G. W. Crabtree; D. G. Hinks; W. N. Kang; Eun Mi Choi; Hyun Jung Kim; Hyeong Jin Kim; S. I. Lee

doi:10.1103/PhysRevLett.89.187002

Two-Band Superconductivity in [Formula presented]

M. Iavarone, G. Karapetrov, A. E. Koshelev, W. K. Kwok, G. W. Crabtree, D. G. Hinks, W. N. Kang, Eun Mi Choi, Hyun Jung Kim, Hyeong Jin Kim, S. I. Lee

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

20 Scopus citations

Abstract

The study of the anisotropic superconductor [Formula presented] using a combination of scanning tunneling microscopy and spectroscopy reveals two distinct energy gaps at [Formula presented] and [Formula presented] at 4.2 K. Different spectral weights of the partial superconducting density of states are a reflection of different tunneling directions in this multiband system. Temperature evolution of the tunneling spectra follows the BCS scenario [Phys. Rev. Lett. 3, 552 (1959)] with both gaps vanishing at the bulk [Formula presented]. The data confirm the importance of Fermi-surface sheet dependent superconductivity in [Formula presented] proposed in the multigap model by Liu et al. [Phys. Rev. Lett. 87, 087005 (2001)].

Original language	English
Journal	Physical Review Letters
Volume	89
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.89.187002
State	Published - 2002
Externally published	Yes

Access to Document

10.1103/PhysRevLett.89.187002

Cite this

@article{1f1b8f6735964c04aeb19eadf3b4fd4f,

title = "Two-Band Superconductivity in [Formula presented] ",

abstract = "The study of the anisotropic superconductor [Formula presented] using a combination of scanning tunneling microscopy and spectroscopy reveals two distinct energy gaps at [Formula presented] and [Formula presented] at 4.2 K. Different spectral weights of the partial superconducting density of states are a reflection of different tunneling directions in this multiband system. Temperature evolution of the tunneling spectra follows the BCS scenario [Phys. Rev. Lett. 3, 552 (1959)] with both gaps vanishing at the bulk [Formula presented]. The data confirm the importance of Fermi-surface sheet dependent superconductivity in [Formula presented] proposed in the multigap model by Liu et al. [Phys. Rev. Lett. 87, 087005 (2001)].",

author = "M. Iavarone and G. Karapetrov and Koshelev, \{A. E.\} and Kwok, \{W. K.\} and Crabtree, \{G. W.\} and Hinks, \{D. G.\} and Kang, \{W. N.\} and Choi, \{Eun Mi\} and Kim, \{Hyun Jung\} and Kim, \{Hyeong Jin\} and Lee, \{S. I.\}",

year = "2002",

doi = "10.1103/PhysRevLett.89.187002",

language = "English",

volume = "89",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "18",

}

TY - JOUR

T1 - Two-Band Superconductivity in [Formula presented]

AU - Iavarone, M.

AU - Karapetrov, G.

AU - Koshelev, A. E.

AU - Kwok, W. K.

AU - Crabtree, G. W.

AU - Hinks, D. G.

AU - Kang, W. N.

AU - Choi, Eun Mi

AU - Kim, Hyun Jung

AU - Kim, Hyeong Jin

AU - Lee, S. I.

PY - 2002

Y1 - 2002

N2 - The study of the anisotropic superconductor [Formula presented] using a combination of scanning tunneling microscopy and spectroscopy reveals two distinct energy gaps at [Formula presented] and [Formula presented] at 4.2 K. Different spectral weights of the partial superconducting density of states are a reflection of different tunneling directions in this multiband system. Temperature evolution of the tunneling spectra follows the BCS scenario [Phys. Rev. Lett. 3, 552 (1959)] with both gaps vanishing at the bulk [Formula presented]. The data confirm the importance of Fermi-surface sheet dependent superconductivity in [Formula presented] proposed in the multigap model by Liu et al. [Phys. Rev. Lett. 87, 087005 (2001)].

AB - The study of the anisotropic superconductor [Formula presented] using a combination of scanning tunneling microscopy and spectroscopy reveals two distinct energy gaps at [Formula presented] and [Formula presented] at 4.2 K. Different spectral weights of the partial superconducting density of states are a reflection of different tunneling directions in this multiband system. Temperature evolution of the tunneling spectra follows the BCS scenario [Phys. Rev. Lett. 3, 552 (1959)] with both gaps vanishing at the bulk [Formula presented]. The data confirm the importance of Fermi-surface sheet dependent superconductivity in [Formula presented] proposed in the multigap model by Liu et al. [Phys. Rev. Lett. 87, 087005 (2001)].

UR - https://www.scopus.com/pages/publications/84864426069

U2 - 10.1103/PhysRevLett.89.187002

DO - 10.1103/PhysRevLett.89.187002

M3 - Article

AN - SCOPUS:84864426069

SN - 0031-9007

VL - 89

JO - Physical Review Letters

JF - Physical Review Letters

IS - 18

ER -

Two-Band Superconductivity in [Formula presented]

Abstract

Access to Document

Other files and links

Fingerprint

Cite this