STM tunnelling spectroscopy in MgB2 thin films: The role of band structure in tunnelling spectra

M. Iavarone; G. Karapetrov; A. E. Koshelev; W. K. Kwok; G. W. Crabtree; W. N. Kang; Eun Mi Choi; Hyun Jung Kim; Sung Ik Lee

doi:10.1088/0953-2048/17/5/003

STM tunnelling spectroscopy in MgB₂ thin films: The role of band structure in tunnelling spectra

M. Iavarone
, G. Karapetrov
, A. E. Koshelev
, W. K. Kwok
, G. W. Crabtree
, W. N. Kang
, Eun Mi Choi
, Hyun Jung Kim
, Sung Ik Lee

Argonne National Laboratory
Pohang University of Science and Technology

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

8 Scopus citations

Abstract

A very peculiar feature of the recently discovered superconductor MgB ₂ is the multigap nature of the superconducting state, which is now commonly accepted in the scientific community and confirmed by a large number of experiments. We report a systematic scanning tunnelling spectroscopy (STS) study performed on high quality thin films of MgB₂. Electron microscopy images and STM topography together with the STS investigation allow a direct correlation between tunnelling direction and the observed tunnelling spectra, confirming that the two-gap state is intrinsic to MgB₂.

Original language	English
Pages (from-to)	S106-S111
Journal	Superconductor Science and Technology
Volume	17
Issue number	5
DOIs	https://doi.org/10.1088/0953-2048/17/5/003
State	Published - May 2004
Externally published	Yes

Access to Document

10.1088/0953-2048/17/5/003

Cite this

@article{fdf53011810f4a24a70ead625df0921c,

title = "STM tunnelling spectroscopy in MgB2 thin films: The role of band structure in tunnelling spectra",

abstract = "A very peculiar feature of the recently discovered superconductor MgB 2 is the multigap nature of the superconducting state, which is now commonly accepted in the scientific community and confirmed by a large number of experiments. We report a systematic scanning tunnelling spectroscopy (STS) study performed on high quality thin films of MgB2. Electron microscopy images and STM topography together with the STS investigation allow a direct correlation between tunnelling direction and the observed tunnelling spectra, confirming that the two-gap state is intrinsic to MgB2.",

author = "M. Iavarone and G. Karapetrov and Koshelev, \{A. E.\} and Kwok, \{W. K.\} and Crabtree, \{G. W.\} and Kang, \{W. N.\} and Choi, \{Eun Mi\} and Kim, \{Hyun Jung\} and Lee, \{Sung Ik\}",

year = "2004",

month = may,

doi = "10.1088/0953-2048/17/5/003",

language = "English",

volume = "17",

pages = "S106--S111",

journal = "Superconductor Science and Technology",

issn = "0953-2048",

publisher = "Institute of Physics",

number = "5",

}

TY - JOUR

T1 - STM tunnelling spectroscopy in MgB2 thin films

T2 - The role of band structure in tunnelling spectra

AU - Iavarone, M.

AU - Karapetrov, G.

AU - Koshelev, A. E.

AU - Kwok, W. K.

AU - Crabtree, G. W.

AU - Kang, W. N.

AU - Choi, Eun Mi

AU - Kim, Hyun Jung

AU - Lee, Sung Ik

PY - 2004/5

Y1 - 2004/5

N2 - A very peculiar feature of the recently discovered superconductor MgB 2 is the multigap nature of the superconducting state, which is now commonly accepted in the scientific community and confirmed by a large number of experiments. We report a systematic scanning tunnelling spectroscopy (STS) study performed on high quality thin films of MgB2. Electron microscopy images and STM topography together with the STS investigation allow a direct correlation between tunnelling direction and the observed tunnelling spectra, confirming that the two-gap state is intrinsic to MgB2.

AB - A very peculiar feature of the recently discovered superconductor MgB 2 is the multigap nature of the superconducting state, which is now commonly accepted in the scientific community and confirmed by a large number of experiments. We report a systematic scanning tunnelling spectroscopy (STS) study performed on high quality thin films of MgB2. Electron microscopy images and STM topography together with the STS investigation allow a direct correlation between tunnelling direction and the observed tunnelling spectra, confirming that the two-gap state is intrinsic to MgB2.

UR - https://www.scopus.com/pages/publications/2542440770

U2 - 10.1088/0953-2048/17/5/003

DO - 10.1088/0953-2048/17/5/003

M3 - Article

AN - SCOPUS:2542440770

SN - 0953-2048

VL - 17

SP - S106-S111

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

IS - 5

ER -

STM tunnelling spectroscopy in MgB₂ thin films: The role of band structure in tunnelling spectra

Abstract

Access to Document

Other files and links

Fingerprint

Cite this