In situ hydrostatic pressure induced improvement of critical current density and suppression of magnetic relaxation in Y(Dy0.5)Ba2Cu3O7-δ coated conductors

被引:0
作者
Sang, Lina [1 ,2 ]
Gutierrez, Joffre [2 ]
Cai, Chuanbing [1 ]
Dou, Shixue [2 ]
Wang, Xiaolin [2 ,3 ]
机构
[1] Shanghai Univ, Phys Dept, Shanghai Key Lab High Temp Superconductors, Shanghai 200444, Peoples R China
[2] Univ Wollongong, Fac Engn, Australian Inst Innovat Mat, Inst Superconducting & Elect Mat, Wollongong, NSW 2500, Australia
[3] Univ Wollongong, ARC Ctr Excellence Future Low Energy Elect Techno, Wollongong, NSW, Australia
基金
中国国家自然科学基金; 澳大利亚研究理事会; 欧盟地平线“2020”;
关键词
magnetic relaxation; critical current density; vortex pinning; metal organic deposition; BA-CU-O; PINNING MECHANISM; GRAIN-BOUNDARIES; DEPENDENCE; DEFECTS;
D O I
10.1088/1361-6668/aac121
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report on the effect of in situ hydrostatic pressure on the enhancement of the in-magneticfield critical current density parallel to the crystallographic c-axis and vortex pinning in epitaxial Y(Dy-0.5)Ba2Cu3O7-delta coated conductors prepared by metal organic deposition. Our results show that in situ hydrostatic pressure greatly enhances the critical current density at high fields and high temperatures. At 80 K and 5 T we observe a ten-fold increase in the critical current density under the pressure of 1.2 GPa, and the irreversibility line is shifted to higher fields without changing the critical temperature. The normalized magnetic relaxation rate shows that vortex creep rates are strongly suppressed due to applied pressure, and the pinning energy is significantly increased based on the collective creep theory. After releasing the pressure, we recover the original superconducting properties. Therefore, we speculate that the in situ hydrostatic pressure exerted on the coated conductor enhances the pinning of existing extended defects. This is totally different from what has been observed in REBa2Cu3O7-delta melt-textured crystals, where the effect of pressure generates point-like defects.
引用
收藏
页数:7
相关论文
共 47 条
  • [31] Magnetic field orientation dependence of flux pinning in (Gd,Y)Ba2Cu3O7-x coated conductor with tilted lattice and nanostructures
    Zhang, Y.
    Specht, E. D.
    Cantoni, C.
    Christen, D. K.
    Thompson, J. R.
    Sinclair, J. W.
    Goyal, A.
    Zuev, Y. L.
    Aytug, T.
    Paranthaman, M. P.
    Chen, Y.
    Selvamanickam, V.
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2009, 469 (23-24): : 2044 - 2051
  • [32] Effect of Hf addition on critical current density of (Y,Eu)Ba2Cu3.6O7-δ thin films prepared by trifluoroacetate metal organic deposition
    Li, M. Y.
    Liu, Z. Y.
    Fang, Q.
    Guo, Y. Q.
    Lu, Y. M.
    Bai, C. Y.
    Cai, C. B.
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2016, 531 : 14 - 19
  • [33] Influence of strain-driven segregation in low-angle grain boundaries on critical current density of Y0.9Nd0.1Ba2Cu3O7-d
    Kim, Sang-il
    Larbalestier, David C.
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2021, 34 (02)
  • [34] Short notes: Effect of hydrostatic pressure up to 12 kbar on the electrical resistance of Y0.77Pr0.23Ba2Cu3O7-δ single crystals
    Khadzhai, G.
    Matsepulin, A.
    Vovk, R.
    LOW TEMPERATURE PHYSICS, 2021, 47 (02) : 166 - 169
  • [35] Effect of Y2BaCuO5 Nanoparticle Doping on Critical Current Density of YBa2Cu3 O 7-δ Bulk Superconductor
    Farbod, Mansoor
    Shokrollahzadeh, Mahdieh
    Shoushtari, Morteza Zargar
    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2018, 31 (01) : 67 - 73
  • [36] Pressure and magnetic field effects on the transport critical current in Hg0.82Re0.18Ba2Ca2Cu3O8+δ ceramic superconductor
    Gonzalez, JL
    de Mello, EVL
    Yugue, ES
    Baggio-Saitovitch, E
    Orlando, MTD
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2004, 408 : 756 - 758
  • [37] Improvement of Pinning Force and Critical Current Density in Thick YBa 2 Cu 3 O 7-δ Films Grown on SrTiO 3 Substrates Decorated with LaNiO 3 Nanodots
    Crisan, A.
    Sarkar, A.
    Mikheenko, P.
    Dang, V. S.
    Kechik, M. M. Awang
    Abell, J. S.
    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2009, 22 (07) : 631 - 636
  • [38] Magnetic field dependence of the critical current density in thin epitaxial HTS YBa2Cu3O7-δ films with dislocation low-angle domain boundaries
    Fedotov, YV
    Ryabchenko, SM
    Pashitskii, EA
    Semenov, AV
    Vakaryuk, VI
    Flis, VS
    Pan, VM
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2002, 372 : 1091 - 1094
  • [39] Effect of pressure on the critical temperature of single-crystal Y0.95Pr0.05Ba2Cu3O7-δ with a specified planar defect geometry
    Khadzhai, G. Ya.
    Sclyar, V. V.
    Vovk, R. V.
    Dovhopolova, Ya. V.
    Chornovol-Tkachenko, O. O.
    LOW TEMPERATURE PHYSICS, 2014, 40 (08) : 699 - 701
  • [40] Pressure dependence of the transport critical current density in optimally doped Hg0.82Re0.18Ba2Ca2Cu3O8+δ polycrystalline compound
    González, JL
    Orlando, MTD
    de Mello, EVL
    Yugue, ES
    Baggio-Saitovitch, E
    SOLID STATE COMMUNICATIONS, 2002, 123 (09) : 405 - 409