scholarly journals Study on Flux Pinning Mechanism of Nb-doped YBCO Film

2019 ◽  
pp. 45
Author(s):  
WANG Ya ◽  
SUO Hong-Li ◽  
Mao Lei ◽  
LIU Min ◽  
MA Lin ◽  
...  
Keyword(s):  
Flux Pinning ◽  
Ybco Film ◽  
Pinning Mechanism

Flux pinning mechanism in Ca1−xCdxLaBaCu3O7−y superconductor

1997 ◽  
Vol 282-287 ◽  
pp. 2129-2130
Author(s):  
Minghu Fang ◽  
Qinghu Chen ◽  
Zhengkuan Jiao ◽  
Qirui Zhang ◽  
Haihu Wen ◽  
...  
Keyword(s):  
Flux Pinning ◽  
Pinning Mechanism

Influences of BaZrO3 particles on the microstructure and flux pinning of YBCO film prepared by using modified TFA-MOD approach

2015 ◽  
Vol 149-150 ◽  
pp. 188-192 ◽  
Author(s):  
L.H. Jin ◽  
S.N. Zhang ◽  
Z.M. Yu ◽  
C.S. Li ◽  
J.Q. Feng ◽  
...  
Keyword(s):  
Flux Pinning ◽  
Ybco Film

Anisotropic critical current density and flux pinning mechanism of Fe1+yTe0.6Se0.4 single crystals

2021 ◽  
Author(s):  
Yongqiang Pan ◽  
Nan Zhou ◽  
Bencheng Lin ◽  
Jinhua Wang ◽  
Zengwei Zhu ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Single Crystals ◽  
Critical Current ◽  
Current Density ◽  
Flux Pinning ◽  
Magnetic Hysteresis ◽  
Magnetic Hysteresis Loop ◽  
Pinning Force ◽  
Magnetization Relaxation ◽  
Pinning Mechanism

Abstract Fe1+yTe0.6Se0.4 has considerable application potential due to its large critical current density (J c) and high upper critical magnetic field (H c2). However, the uncertainty of the anisotropy of J c and the unclear flux-pinning mechanism have limited the application of this material. In this study, the J c in three directions were obtained from magnetic hysteresis loop measurements. A large anisotropy of J c ab /J c c ~ 10 was observed, and the origin of the anisotropy was discussed in details. Flux pinning force densities (F p) were obtained from J c, and a non-scaling behavior was found in the normalized pinning force f p[F p/F p-max] versus the normalized field h[H/H c2]. The peaks of pinning force shift from a high h to a low h with increasing temperature. Based on the vortex dynamics analysis, the peak shift was found to originate from the magnetization relaxation. The J c and F p at critical states free from the magnetic relaxation were regained. According to the Dew-Hughes model, the dominant pinning type in Fe1+yTe0.6Se0.4 clean single crystals was confirmed to be normal point pinning.

scholarly journals Enhancement of superconducting properties and flux pinning mechanism on Cr0.0005NbSe2 single crystal under Hydrostatic pressure

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
S. Arumugam ◽  
Manikandan Krishnan ◽  
Kent Ishigaki ◽  
Jun Gouchi ◽  
Rukshana Pervin ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Single Crystal ◽  
Flux Pinning ◽  
Superconducting Properties ◽  
Pinning Mechanism

MAGNETO-OPTIC IMAGING OF PROTON-IRRADIATED HIGH Tc SUPERCONDUCTING THIN FILMS: A REVISIT OF Jc(T) FUNCTIONAL AND FLUX PINNING ENHANCEMENT

2001 ◽  
Vol 15 (24n25) ◽  
pp. 3357-3358
Author(s):  
Chong Wang ◽  
Hye-Won Seo ◽  
Chun-Jung Su ◽  
Yuh-Huah Wang ◽  
Q. Y. Chen ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Fields ◽  
External Field ◽  
Critical Current Density ◽  
Current Density ◽  
Flux Pinning ◽  
Ybco Film ◽  
Superconducting Thin Films ◽  
High Tc ◽  
Quantitative Measurements

We have performed systematic quantitative measurements of the critical current density Jc(B, T) for YBCO thin films proton-irradiated to various dosages using the MOI technique. Results for external magnetic fields up to 400Oe and temperature ranging from 5 to 80K are presented for a 600nm thick YBCO film irradiated by proton up to a dosage of 1016 cm -2 at 500 keV. While no significant differences were observed for T>50K, the Jc values consistently increased with the increasing external field for T<50K.

STRONG FLUX PINNING OF NANO-SIZED YSZ PARTICLES IN YBCO FILMS PREPARED BY MOD METHOD

2011 ◽  
Vol 25 (31) ◽  
pp. 2371-2376
Author(s):  
S. YE ◽  
H. L. SUO ◽  
M. LIU ◽  
X. TANG ◽  
Z. P. WU ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Applied Field ◽  
Flux Pinning ◽  
Ybco Film ◽  
Precursor Solution ◽  
Organic Salt ◽  
Superconducting Properties ◽  
Ybco Films ◽  
Metal Organic ◽  
Better Than

The YBCO films with doped YSZ nanoparticles have been prepared successfully by metal organic doepositon method using trifluoroacetates (TFA-MOD) through dissolving Zr organic salt into the YBCO precursor solution. The doped films have well in-plane and out-plane textures detected by both XRD Φ-scan and ω-scan. The YSZ nanoparticles with the size of about 5 ~ 15 nm were observed on the surface of the YBCO films using both FE-SEM and TEM. By comparing the superconducting properties, it was found that the doped YBCO films had lower Tc than that of undoped YBCO films. However, as increasing the applied magnetic field, Jc of the doped YBCO films were much better than that of undoped one. The Jc was as higher as 2.5 times than that of undoped YBCO film at 77 K and 1 T applied field.

Transition of flux pinning mechanism in mesoscopic NbTi/Nb/Cu superconductor

Cryogenics ◽  
1998 ◽  
Vol 38 (8) ◽  
pp. 779-784 ◽  
Author(s):  
T Kitai ◽  
H Tsurumaru ◽  
M Higuchi ◽  
K Osamura ◽  
S Kikuchi ◽  
...  
Keyword(s):  
Flux Pinning ◽  
Pinning Mechanism
Sign in / Sign up

Export Citation Format

Share Document