Nanoscale disorder in pure and doped MgB2thin films

Ye Zhu; A. V. Pogrebnyakov; R. H. Wilke; K. Chen; X. X. Xi; J. M. Redwing; C. G. Zhuang; Q. R. Feng; Z. Z. Gan; R. K. Singh; Y. Shen; N. Newman; J. M. Rowell; F. Hunte; J. Jaroszynski; D. C. Larbalestier; S. A. Baily; F. F. Balakirev; P. M. Voyles

doi:10.1088/0953-2048/23/9/095008

Nanoscale disorder in pure and doped MgB₂thin films

Ye Zhu, A. V. Pogrebnyakov, R. H. Wilke, K. Chen, X. X. Xi, J. M. Redwing, C. G. Zhuang, Q. R. Feng, Z. Z. Gan, R. K. Singh, Y. Shen, N. Newman, J. M. Rowell, F. Hunte, J. Jaroszynski, D. C. Larbalestier, S. A. Baily, F. F. Balakirev, P. M. Voyles

Research output: Journal article publication › Journal article › Academic research › peer-review

14 Citations (Scopus)

Abstract

MgB2thin films have superior superconducting properties compared to bulk MgB2and demonstrate the potential for further improving the performances of MgB2wires and tapes.Using transmission electron microscopy, we have characterized the microstructure of pure and C-doped MgB2using various carbon sources grown by hybrid physical-chemical vapor deposition (HPCVD), and cold-grown-annealed film deposited by molecular beam epitaxy (MBE). The MgB2HPCVD films increase in crystal quality in the order (MeCp)2Mg-sourced films, CH4-sourced films, B(CH3)3-sourced films, pure films, while the Hc2values of these films follow the opposite order. The cold-grown-annealed MgB2MBE film contains non-epitaxial ≤10 nm MgB2grains and MgO nanoparticles. The microstructural origins of electron scattering and flux pinning in both films are discussed. We also show the structure and chemistry of the degraded phase in HPCVD films and its effects on superconducting properties.

Original language	English
Article number	095008
Journal	Superconductor Science and Technology
Volume	23
Issue number	9
DOIs	https://doi.org/10.1088/0953-2048/23/9/095008
Publication status	Published - 1 Sept 2010
Externally published	Yes

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1088/0953-2048/23/9/095008

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Zhu, Y., Pogrebnyakov, A. V., Wilke, R. H., Chen, K., Xi, X. X., Redwing, J. M., Zhuang, C. G., Feng, Q. R., Gan, Z. Z., Singh, R. K., Shen, Y., Newman, N., Rowell, J. M., Hunte, F., Jaroszynski, J., Larbalestier, D. C., Baily, S. A., Balakirev, F. F., & Voyles, P. M. (2010). Nanoscale disorder in pure and doped MgB₂thin films. Superconductor Science and Technology, 23(9), Article 095008. https://doi.org/10.1088/0953-2048/23/9/095008

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title = "Nanoscale disorder in pure and doped MgB2thin films",

abstract = "MgB2thin films have superior superconducting properties compared to bulk MgB2and demonstrate the potential for further improving the performances of MgB2wires and tapes.Using transmission electron microscopy, we have characterized the microstructure of pure and C-doped MgB2using various carbon sources grown by hybrid physical-chemical vapor deposition (HPCVD), and cold-grown-annealed film deposited by molecular beam epitaxy (MBE). The MgB2HPCVD films increase in crystal quality in the order (MeCp)2Mg-sourced films, CH4-sourced films, B(CH3)3-sourced films, pure films, while the Hc2values of these films follow the opposite order. The cold-grown-annealed MgB2MBE film contains non-epitaxial ≤10 nm MgB2grains and MgO nanoparticles. The microstructural origins of electron scattering and flux pinning in both films are discussed. We also show the structure and chemistry of the degraded phase in HPCVD films and its effects on superconducting properties.",

author = "Ye Zhu and Pogrebnyakov, {A. V.} and Wilke, {R. H.} and K. Chen and Xi, {X. X.} and Redwing, {J. M.} and Zhuang, {C. G.} and Feng, {Q. R.} and Gan, {Z. Z.} and Singh, {R. K.} and Y. Shen and N. Newman and Rowell, {J. M.} and F. Hunte and J. Jaroszynski and Larbalestier, {D. C.} and Baily, {S. A.} and Balakirev, {F. F.} and Voyles, {P. M.}",

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Zhu, Y, Pogrebnyakov, AV, Wilke, RH, Chen, K, Xi, XX, Redwing, JM, Zhuang, CG, Feng, QR, Gan, ZZ, Singh, RK, Shen, Y, Newman, N, Rowell, JM, Hunte, F, Jaroszynski, J, Larbalestier, DC, Baily, SA, Balakirev, FF & Voyles, PM 2010, 'Nanoscale disorder in pure and doped MgB₂thin films', Superconductor Science and Technology, vol. 23, no. 9, 095008. https://doi.org/10.1088/0953-2048/23/9/095008

TY - JOUR

T1 - Nanoscale disorder in pure and doped MgB2thin films

AU - Zhu, Ye

AU - Pogrebnyakov, A. V.

AU - Wilke, R. H.

AU - Chen, K.

AU - Xi, X. X.

AU - Redwing, J. M.

AU - Zhuang, C. G.

AU - Feng, Q. R.

AU - Gan, Z. Z.

AU - Singh, R. K.

AU - Shen, Y.

AU - Newman, N.

AU - Rowell, J. M.

AU - Hunte, F.

AU - Jaroszynski, J.

AU - Larbalestier, D. C.

AU - Baily, S. A.

AU - Balakirev, F. F.

AU - Voyles, P. M.

PY - 2010/9/1

Y1 - 2010/9/1

N2 - MgB2thin films have superior superconducting properties compared to bulk MgB2and demonstrate the potential for further improving the performances of MgB2wires and tapes.Using transmission electron microscopy, we have characterized the microstructure of pure and C-doped MgB2using various carbon sources grown by hybrid physical-chemical vapor deposition (HPCVD), and cold-grown-annealed film deposited by molecular beam epitaxy (MBE). The MgB2HPCVD films increase in crystal quality in the order (MeCp)2Mg-sourced films, CH4-sourced films, B(CH3)3-sourced films, pure films, while the Hc2values of these films follow the opposite order. The cold-grown-annealed MgB2MBE film contains non-epitaxial ≤10 nm MgB2grains and MgO nanoparticles. The microstructural origins of electron scattering and flux pinning in both films are discussed. We also show the structure and chemistry of the degraded phase in HPCVD films and its effects on superconducting properties.

AB - MgB2thin films have superior superconducting properties compared to bulk MgB2and demonstrate the potential for further improving the performances of MgB2wires and tapes.Using transmission electron microscopy, we have characterized the microstructure of pure and C-doped MgB2using various carbon sources grown by hybrid physical-chemical vapor deposition (HPCVD), and cold-grown-annealed film deposited by molecular beam epitaxy (MBE). The MgB2HPCVD films increase in crystal quality in the order (MeCp)2Mg-sourced films, CH4-sourced films, B(CH3)3-sourced films, pure films, while the Hc2values of these films follow the opposite order. The cold-grown-annealed MgB2MBE film contains non-epitaxial ≤10 nm MgB2grains and MgO nanoparticles. The microstructural origins of electron scattering and flux pinning in both films are discussed. We also show the structure and chemistry of the degraded phase in HPCVD films and its effects on superconducting properties.

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VL - 23

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

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ER -

Nanoscale disorder in pure and doped MgB₂thin films

Abstract

ASJC Scopus subject areas

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