DOI: 10.1143/jjap.28.l1226. Flux Pinning and Weak Link Structure in Ca-Doped LaBa2Cu3O7-y

Flux Pinning and Weak Link Structure in Ca-Doped LaBa2Cu3O7-y

10.1143/jjap.28.l1226

Crossref journal-article

IOP Publishing

Japanese Journal of Applied Physics (266)

Abstract

The effect of Ca doping on the flux pinning and the weak link structure of the LaBa2Cu3O7-y system have been studied. The magnitude and the magnetic field dependence of the critical current density were improved by Ca doping. A small amount of impurity phases of Ca-related compounds such as Ca2Cu1O3 and Ca1Cu2O3 may work as a desirable flux pinning center. Moreover, it was found that the current-temperature characteristics for Ca-doped samples showed the evidence of two kinds of superconductor phases which have different transition temperatures T c and T c'. The experimental result agreed well with the Ambegaokar-Baratoff theory for asymmetric Josephson junctions (S-I-S') in the temperature range of T<T c' and with the proximity junction theory (S-N-S) in the range of T c'<T<T c.

Bibliography

Masuda, H., Mizuno, F., Hirabayashi, I., & Tanaka, S. (1989). Flux Pinning and Weak Link Structure in Ca-Doped LaBa2Cu3O7-y. Japanese Journal of Applied Physics, 28(7A), L1226.

Authors 4

Hiromu Masuda (first)
Fumio Mizuno (additional)
Izumi Hirabayashi (additional)
Shoji Tanaka (additional)

References 16 Referenced 20

10.1016/0921-4534(88)90551-5 / Physica C (1988)
10.1063/1.99744 / Appl. Phys. Lett. (1988)
10.1103/PhysRevB.37.5182 / Phys. Rev. (1988)
10.1103/PhysRevB.38.7009 / Phys. Rev. (1988)
10.1016/0921-4534(88)90117-7 / Physica C (1988)
10.1063/1.341318 / J. Appl. Phys. (1988)
10.1103/PhysRevLett.8.250 / Phys. Rev. Lett. (1962)
10.1143/JJAP.27.L1843 / Jpn. J. Appl. Phys. (1988)
10.1103/PhysRevB.39.9091 / Phys. Rev. (1989)
10.1103/PhysRevLett.10.486 / Phys. Rev. Lett. (1963)
{'key': '', 'first-page': '419', 'volume': '3', 'year': '1980', 'journal-title': 'Sov. J. Low Tern. Phys.'} / Sov. J. Low Tern. Phys. (1980)
10.1143/JJAP.26S3.1613 / Proc. 18th. Int. Conf. on Low Temperature Physics, Kyoto, 1987, Jpn. J. Appl. Phys. (1987)
10.1103/RevModPhys.36.226 / Rev. Mod. Phys. (1964)
10.1007/BF01332932 / Z. Phys. (1959)
10.1016/0038-1098(74)90237-3 / Solid State Commun. (1974)
10.1016/0921-4534(88)90828-3 / Physica C (1988)

Dates

Type	When
Created	20 years, 6 months ago (Feb. 22, 2005, 8:32 p.m.)
Deposited	2 years, 8 months ago (Dec. 6, 2022, 9:32 a.m.)
Indexed	6 months, 2 weeks ago (Feb. 21, 2025, 5:35 a.m.)
Issued	36 years, 2 months ago (July 1, 1989)
Published	36 years, 2 months ago (July 1, 1989)
Published Print	36 years, 2 months ago (July 1, 1989)

Funders 0

None

BibTeX

@article{Masuda_1989, title={Flux Pinning and Weak Link Structure in Ca-Doped LaBa2Cu3O7-y}, volume={28}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.28.l1226}, DOI={10.1143/jjap.28.l1226}, number={7A}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={Masuda, Hiromu and Mizuno, Fumio and Hirabayashi, Izumi and Tanaka, Shoji}, year={1989}, month=jul, pages={L1226} }

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