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Bi2Sr2CuO6+δ/ACuO2 (A = Ca,Sr) superconducting multilayers obtained by molecular beam epitaxy

Salvato, M. ; Attanasio, C. ; Carbone, G. LU ; Di Luccio, T. ; Prischepa, S. L. ; Russo, R. and Maritato, L. (1999) In Physica C: Superconductivity and its Applications 316(3). p.215-223
Abstract

Bi-based superconducting multilayers, consisting of Bi2Sr2CuO6+δ (2201) layers alternately stacked with CaCuO2 or SrCuO2 layers, have been deposited by Molecular Beam Epitaxy (MBE) using co-deposition and growth interruption techniques. In situ Reflection High Energy Electron Diffraction (RHEED) has been used to monitor the surface of the different layers giving evidence of a two-dimensional growth mode. The layered structure of the samples has been confirmed by X-ray diffraction analyses. Resistive measurements have shown superconducting 2201/CaCuO2 samples with critical temperatures strongly depending on the thickness of the CaCuO2. The 2201/SrCuO2... (More)

Bi-based superconducting multilayers, consisting of Bi2Sr2CuO6+δ (2201) layers alternately stacked with CaCuO2 or SrCuO2 layers, have been deposited by Molecular Beam Epitaxy (MBE) using co-deposition and growth interruption techniques. In situ Reflection High Energy Electron Diffraction (RHEED) has been used to monitor the surface of the different layers giving evidence of a two-dimensional growth mode. The layered structure of the samples has been confirmed by X-ray diffraction analyses. Resistive measurements have shown superconducting 2201/CaCuO2 samples with critical temperatures strongly depending on the thickness of the CaCuO2. The 2201/SrCuO2 multilayers do not show a zero electrical resistance above 4.2 K, but the resistance vs. temperature curves present a sharp decrease around 60 K indicative of a superconducting onset.

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publishing date
type
Contribution to journal
publication status
published
in
Physica C: Superconductivity and its Applications
volume
316
issue
3
pages
9 pages
publisher
Elsevier
external identifiers
  • scopus:0032641471
ISSN
0921-4534
DOI
10.1016/S0921-4534(99)00258-0
language
English
LU publication?
no
id
257009b9-0f6e-4c30-96bf-c4d54a7ee856
date added to LUP
2021-12-15 12:08:57
date last changed
2022-02-02 02:08:45
@article{257009b9-0f6e-4c30-96bf-c4d54a7ee856,
  abstract     = {{<p>Bi-based superconducting multilayers, consisting of Bi<sub>2</sub>Sr<sub>2</sub>CuO<sub>6+δ</sub> (2201) layers alternately stacked with CaCuO<sub>2</sub> or SrCuO<sub>2</sub> layers, have been deposited by Molecular Beam Epitaxy (MBE) using co-deposition and growth interruption techniques. In situ Reflection High Energy Electron Diffraction (RHEED) has been used to monitor the surface of the different layers giving evidence of a two-dimensional growth mode. The layered structure of the samples has been confirmed by X-ray diffraction analyses. Resistive measurements have shown superconducting 2201/CaCuO<sub>2</sub> samples with critical temperatures strongly depending on the thickness of the CaCuO<sub>2</sub>. The 2201/SrCuO<sub>2</sub> multilayers do not show a zero electrical resistance above 4.2 K, but the resistance vs. temperature curves present a sharp decrease around 60 K indicative of a superconducting onset.</p>}},
  author       = {{Salvato, M. and Attanasio, C. and Carbone, G. and Di Luccio, T. and Prischepa, S. L. and Russo, R. and Maritato, L.}},
  issn         = {{0921-4534}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{215--223}},
  publisher    = {{Elsevier}},
  series       = {{Physica C: Superconductivity and its Applications}},
  title        = {{Bi<sub>2</sub>Sr<sub>2</sub>CuO<sub>6+δ</sub>/ACuO<sub>2</sub> (A = Ca,Sr) superconducting multilayers obtained by molecular beam epitaxy}},
  url          = {{http://dx.doi.org/10.1016/S0921-4534(99)00258-0}},
  doi          = {{10.1016/S0921-4534(99)00258-0}},
  volume       = {{316}},
  year         = {{1999}},
}