Growth of YBa2Cu3O7-δ and La0.67Ca0.33MnO3 thin films on silicon-on-insulator substrates

P. Wang; J. Li; W. Peng; H. F. Chu; S. Li; D. N. Zheng

doi:10.1016/j.physc.2007.04.128

Growth of YBa₂Cu₃O_7-δ and La_0.67Ca_0.33MnO₃ thin films on silicon-on-insulator substrates

P. Wang, J. Li, W. Peng, H. F. Chu, S. Li, D. N. Zheng

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

Abstract

By using the pulsed laser deposition technique, we have successfully prepared epitaxial YBa₂Cu₃O_7-δ (YBCO) and La_0.67Ca_0.33MnO₃ (LCMO) thin films on yittria-stabilized zirconia (YSZ) buffered silicon-on-insulator (SOI) wafers. The zero-resistance temperature T_c0 of YBCO is up to 88 K. However, scanning electron microscopy (SEM) demonstrates that microcracks of width 20-50 nm still appear in the YBCO films. The crack width and density increase with the thickness increasing of YBCO thin films. As a result, the critical current density J_c is quite limited and the films show an aging effect. Nevertheless, comparison between the experimental and the theoretically estimated value of the crack spacing suggests that the stress is partially released for the adoption of SOI substrates. In contrast, the pseudocubic LCMO thin films grown on YSZ/SOI substrates are multi-oriented in plane, which results in a large extrinsic low field magnetoresistance (∼20%).

Original language	English
Pages (from-to)	1367-1368
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	460-462 II
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2007.04.128
State	Published - 1 Sep 2007
Externally published	Yes

Keywords

Colossal magnetoresistance
SOI substrates
Superconductivity

Access to Document

10.1016/j.physc.2007.04.128

Cite this

@article{9a84e10759074c7d8d2bec23b892989a,

title = "Growth of YBa2Cu3O7-δ and La0.67Ca0.33MnO3 thin films on silicon-on-insulator substrates",

abstract = "By using the pulsed laser deposition technique, we have successfully prepared epitaxial YBa2Cu3O7-δ (YBCO) and La0.67Ca0.33MnO3 (LCMO) thin films on yittria-stabilized zirconia (YSZ) buffered silicon-on-insulator (SOI) wafers. The zero-resistance temperature Tc0 of YBCO is up to 88 K. However, scanning electron microscopy (SEM) demonstrates that microcracks of width 20-50 nm still appear in the YBCO films. The crack width and density increase with the thickness increasing of YBCO thin films. As a result, the critical current density Jc is quite limited and the films show an aging effect. Nevertheless, comparison between the experimental and the theoretically estimated value of the crack spacing suggests that the stress is partially released for the adoption of SOI substrates. In contrast, the pseudocubic LCMO thin films grown on YSZ/SOI substrates are multi-oriented in plane, which results in a large extrinsic low field magnetoresistance (∼20%).",

keywords = "Colossal magnetoresistance, SOI substrates, Superconductivity",

author = "P. Wang and J. Li and W. Peng and Chu, {H. F.} and S. Li and Zheng, {D. N.}",

note = "Funding Information: This work is supported by the NSF of China, the Ministry of Science and Technology of China and Chinese Academy of Sciences.",

year = "2007",

month = sep,

day = "1",

doi = "10.1016/j.physc.2007.04.128",

language = "English",

volume = "460-462 II",

pages = "1367--1368",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Growth of YBa2Cu3O7-δ and La0.67Ca0.33MnO3 thin films on silicon-on-insulator substrates

AU - Wang, P.

AU - Li, J.

AU - Peng, W.

AU - Chu, H. F.

AU - Li, S.

AU - Zheng, D. N.

N1 - Funding Information: This work is supported by the NSF of China, the Ministry of Science and Technology of China and Chinese Academy of Sciences.

PY - 2007/9/1

Y1 - 2007/9/1

N2 - By using the pulsed laser deposition technique, we have successfully prepared epitaxial YBa2Cu3O7-δ (YBCO) and La0.67Ca0.33MnO3 (LCMO) thin films on yittria-stabilized zirconia (YSZ) buffered silicon-on-insulator (SOI) wafers. The zero-resistance temperature Tc0 of YBCO is up to 88 K. However, scanning electron microscopy (SEM) demonstrates that microcracks of width 20-50 nm still appear in the YBCO films. The crack width and density increase with the thickness increasing of YBCO thin films. As a result, the critical current density Jc is quite limited and the films show an aging effect. Nevertheless, comparison between the experimental and the theoretically estimated value of the crack spacing suggests that the stress is partially released for the adoption of SOI substrates. In contrast, the pseudocubic LCMO thin films grown on YSZ/SOI substrates are multi-oriented in plane, which results in a large extrinsic low field magnetoresistance (∼20%).

AB - By using the pulsed laser deposition technique, we have successfully prepared epitaxial YBa2Cu3O7-δ (YBCO) and La0.67Ca0.33MnO3 (LCMO) thin films on yittria-stabilized zirconia (YSZ) buffered silicon-on-insulator (SOI) wafers. The zero-resistance temperature Tc0 of YBCO is up to 88 K. However, scanning electron microscopy (SEM) demonstrates that microcracks of width 20-50 nm still appear in the YBCO films. The crack width and density increase with the thickness increasing of YBCO thin films. As a result, the critical current density Jc is quite limited and the films show an aging effect. Nevertheless, comparison between the experimental and the theoretically estimated value of the crack spacing suggests that the stress is partially released for the adoption of SOI substrates. In contrast, the pseudocubic LCMO thin films grown on YSZ/SOI substrates are multi-oriented in plane, which results in a large extrinsic low field magnetoresistance (∼20%).

KW - Colossal magnetoresistance

KW - SOI substrates

KW - Superconductivity

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