Structure and transport studies on nanometer YBCO/PBCGO multilayers

Tar Pin Chen; Ke Wu; Qi Li; Ben Chen; Shon Zeng Wang; Hom Kandel; Yu Chong Soo; Udom Tipparach; Jing Biao Cui; Hye Won Seo; Chi Jen Chen

doi:10.1007/s11434-009-0254-8

Structure and transport studies on nanometer YBCO/PBCGO multilayers

Tar Pin Chen, Ke Wu, Qi Li, Ben Chen, Shon Zeng Wang, Hom Kandel, Yu Chong Soo, Udom Tipparach, Jing Biao Cui, Hye Won Seo, Chi Jen Chen

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Abstract

We have fabricated M doped (M = Al, Co, Fe, Ga, Ni and Zn) PrBa₂Cu₃O₇(PBCO), i.e. PrBa₂(Cu_1-xM_x)₃O₇. The doping levels x are 0.05, 0.10, 0.15, and 0.20. X-ray data indicated no significant second phase for substituting Cu by Al, Co, Fe and Ga up to 20%. However impurity phases were detected for Ni and Zn substituted samples with doping levels equal to and higher than 15%. At 77 K the electrical resistivity of these compounds is orders in magnitude higher than that of PBCO. We also found that although the lattice parameters in the doped samples differ from PBCO, all samples remain orthorhombic. The lattice parameters of the doped sample are very close to those of YBa₂Cu₃O_7-δ (YBCO) and PBCO. For this reason these compounds are better materials to be used as the I-layer for YBCO SIS junctions. Results of structural and transport studies on 2000 \0A thick PrBa₂[Cu_0.80G_0.2]₃O₇ (PBCGO) and YBCO/PBCGO multilayers are presented in this paper.

Original language	English (US)
Pages (from-to)	2698-2702
Number of pages	5
Journal	Chinese Science Bulletin
Volume	54
Issue number	15
DOIs	https://doi.org/10.1007/s11434-009-0254-8
State	Published - Aug 2009

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@article{7df0abee747b407b95966994ab997426,

title = "Structure and transport studies on nanometer YBCO/PBCGO multilayers",

abstract = "We have fabricated M doped (M = Al, Co, Fe, Ga, Ni and Zn) PrBa2Cu3O7(PBCO), i.e. PrBa2(Cu1-xMx)3O7. The doping levels x are 0.05, 0.10, 0.15, and 0.20. X-ray data indicated no significant second phase for substituting Cu by Al, Co, Fe and Ga up to 20%. However impurity phases were detected for Ni and Zn substituted samples with doping levels equal to and higher than 15%. At 77 K the electrical resistivity of these compounds is orders in magnitude higher than that of PBCO. We also found that although the lattice parameters in the doped samples differ from PBCO, all samples remain orthorhombic. The lattice parameters of the doped sample are very close to those of YBa2Cu3O7-δ (YBCO) and PBCO. For this reason these compounds are better materials to be used as the I-layer for YBCO SIS junctions. Results of structural and transport studies on 2000 \0A thick PrBa2[Cu0.80G0.2]3O7 (PBCGO) and YBCO/PBCGO multilayers are presented in this paper.",

author = "Chen, {Tar Pin} and Ke Wu and Qi Li and Ben Chen and Wang, {Shon Zeng} and Hom Kandel and Soo, {Yu Chong} and Udom Tipparach and Cui, {Jing Biao} and Seo, {Hye Won} and Chen, {Chi Jen}",

year = "2009",

month = aug,

doi = "10.1007/s11434-009-0254-8",

language = "English (US)",

volume = "54",

pages = "2698--2702",

journal = "Chinese Science Bulletin",

issn = "1001-6538",

publisher = "Elsevier B.V.",

number = "15",

}

TY - JOUR

T1 - Structure and transport studies on nanometer YBCO/PBCGO multilayers

AU - Chen, Tar Pin

AU - Wu, Ke

AU - Li, Qi

AU - Chen, Ben

AU - Wang, Shon Zeng

AU - Kandel, Hom

AU - Soo, Yu Chong

AU - Tipparach, Udom

AU - Cui, Jing Biao

AU - Seo, Hye Won

AU - Chen, Chi Jen

PY - 2009/8

Y1 - 2009/8

N2 - We have fabricated M doped (M = Al, Co, Fe, Ga, Ni and Zn) PrBa2Cu3O7(PBCO), i.e. PrBa2(Cu1-xMx)3O7. The doping levels x are 0.05, 0.10, 0.15, and 0.20. X-ray data indicated no significant second phase for substituting Cu by Al, Co, Fe and Ga up to 20%. However impurity phases were detected for Ni and Zn substituted samples with doping levels equal to and higher than 15%. At 77 K the electrical resistivity of these compounds is orders in magnitude higher than that of PBCO. We also found that although the lattice parameters in the doped samples differ from PBCO, all samples remain orthorhombic. The lattice parameters of the doped sample are very close to those of YBa2Cu3O7-δ (YBCO) and PBCO. For this reason these compounds are better materials to be used as the I-layer for YBCO SIS junctions. Results of structural and transport studies on 2000 \0A thick PrBa2[Cu0.80G0.2]3O7 (PBCGO) and YBCO/PBCGO multilayers are presented in this paper.

AB - We have fabricated M doped (M = Al, Co, Fe, Ga, Ni and Zn) PrBa2Cu3O7(PBCO), i.e. PrBa2(Cu1-xMx)3O7. The doping levels x are 0.05, 0.10, 0.15, and 0.20. X-ray data indicated no significant second phase for substituting Cu by Al, Co, Fe and Ga up to 20%. However impurity phases were detected for Ni and Zn substituted samples with doping levels equal to and higher than 15%. At 77 K the electrical resistivity of these compounds is orders in magnitude higher than that of PBCO. We also found that although the lattice parameters in the doped samples differ from PBCO, all samples remain orthorhombic. The lattice parameters of the doped sample are very close to those of YBa2Cu3O7-δ (YBCO) and PBCO. For this reason these compounds are better materials to be used as the I-layer for YBCO SIS junctions. Results of structural and transport studies on 2000 \0A thick PrBa2[Cu0.80G0.2]3O7 (PBCGO) and YBCO/PBCGO multilayers are presented in this paper.

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EP - 2702

JO - Chinese Science Bulletin

JF - Chinese Science Bulletin

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ER -

Structure and transport studies on nanometer YBCO/PBCGO multilayers

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