Enhancement of critical current by post-annealing of thin YBCO films prepared by laser ablation from a nanocrystalline target

被引：0

作者：

Huhtinen, H ^{[1
]}

Paturi, P ^{[1
]}

Lähderanta, E ^{[1
]}

机构：

[1] Turku Univ, Wihuri Phys Lab, FIN-20014 Turku, Finland

来源：

PHYSICS OF LOW-DIMENSIONAL STRUCTURES | 1999年 / 9-10卷

关键词：

D O I：

暂无

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Influence of post-annealing oil surface morphology and superconducting properties of thin YBCO films prepared by laser ablation from a. nanocrystalline target is investigated. Annealing of the films in slowly flowing oxygen at the optimum temperature of 900 degrees C increases the superconducting transition temperature T-c at best from 82 K (as-deposited film) to 90 K (annealed film). Also the critical current density rises remarkably during annealing, reaching the value of J(c) approximate to 1.4 x 10(7) A/cm(2) at 77 It in zero magnetic field; A plausible mechanism is discussed for explanation of these observations. The main surface defects found on the annealed films are a few large particles and holes. Between these defects the rms smoothness of the surface is 3.6 nm.

引用

页码：25 / 37

页数：13

共 50 条

[1] Effect of post-annealing on thin YBCO films deposited from a nanocrystalline target
H. Huhtinen
E. Lähderanta
P. Paturi
Journal of Low Temperature Physics, 1999, 117 : 795 - 799
[2] Effect of post-annealing on thin YBCO films deposited from a nanocrystalline target
Huhtinen, H.
Lahderanta, E.
Paturi, P.
Journal of low temperature physics, 1999, 117 (03): : 795 - 799
[3] Effect of post-annealing on thin YBCO films deposited from a nanocrystalline target
Huhtinen, H
Lähderanta, E
Paturi, P
JOURNAL OF LOW TEMPERATURE PHYSICS, 1999, 117 (3-4) : 795 - 799
[4] Reason for high critical current in thin YBCO films prepared by laser ablation from nanostructured target
Paturi, P
Huhtinen, H
Laajalehto, K
Laiho, R
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2000, 13 (05): : 622 - 628
[5] Enhancement of critical current density in ErBa2Cu3Oy thin films by post-annealing
Horii, S
Ichinose, A
Mukaida, M
Matsumoto, K
Ohazama, T
Yoshida, Y
Shimoyama, J
Kishio, K
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2004, 43 (9A-B): : L1223 - L1225
[6] CRITICAL CURRENT ANISOTROPY AND FLUX PINNING IN YBCO(001) AND YBCO(110) SUPERCONDUCTING THIN FILMS PREPARED BY KrF PULSED LASER ABLATION
Juang, J. Y.
Wu, K. H.
Wang, S. J.
Lai, T. C.
Kao, R. T.
Wu, C. L.
Uen, T. M.
Gou, Y. S.
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1993, 3 (01) : 1532 - 1535
[7] Enhancement of critical current density in ErBa2Cu 3Oy thin films by post-annealing
Horii, S., 1600, Japan Society of Applied Physics (43):
[8] Effect of post-annealing on laser-ablation deposited WS2 thin films
Wang, H.
Ng, S. M.
Wong, H. F.
Wong, W. C.
Lam, K. K.
Liu, Y. K.
Fei, L. F.
Zhou, Y. B.
Mak, C. L.
Wang, Y.
Leung, C. W.
VACUUM, 2018, 152 : 239 - 242
[9] Effect of laser-ablation process parameters and post-annealing treatment on ferroelectric PZT thin films
Lappalainen, Jyrki
Frantti, Johannes
Lantto, Vilho
Applied Surface Science, 1999, 142 (01): : 407 - 412
[10] Effect of laser-ablation process parameters and post-annealing treatment on ferroelectric PZT thin films
Lappalainen, J
Frantti, J
Lantto, V
APPLIED SURFACE SCIENCE, 1999, 142 (1-4) : 407 - 412

← 1 2 3 4 5 →