In-situ hydrostatic pressure induced significant suppression of magnetic relaxation and enhancement of flux pinning in Fe1−Co Se0.5Te0.5 single crystals

2019 ◽  
Vol 171 ◽  
pp. 57-61 ◽  
Author(s):  
Lina Sang ◽  
Pankaj Maheshwari ◽  
Jixing Liu ◽  
Zhi Li ◽  
Wenbin Qiu ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Single Crystals ◽  
Magnetic Relaxation ◽  
Flux Pinning ◽  
Significant Suppression

scholarly journals Study of flux pinning mechanism under hydrostatic pressure in optimally doped (Ba,K)Fe2As2 single crystals

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Babar Shabbir ◽  
Xiaolin Wang ◽  
Y. Ma ◽  
S. X. Dou ◽  
S. S. Yan ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Single Crystals ◽  
Flux Pinning ◽  
Pinning Mechanism

Non-logarithmic magnetic relaxation in Bi2.2Sr1.7CaCu2O8 single crystals; evidence for collective flux pinning

1991 ◽  
Vol 176 (4-6) ◽  
pp. 336-346 ◽  
Author(s):  
P. Svedlindh ◽  
C. Rossel ◽  
K. Niskanen ◽  
P. Norling ◽  
P. Nordblad ◽  
...  
Keyword(s):  
Single Crystals ◽  
Magnetic Relaxation ◽  
Flux Pinning

Flux Pinning Defects Induced by Electron Irradiation in Y1Ba2Cu3O7–8 Single Crystals

1992 ◽  
Vol 275 ◽  
Author(s):  
J. Giapintzakis ◽  
M. A. Kirk ◽  
W. C. Lee ◽  
J. P. Rice ◽  
D. M. Ginsberg ◽  
...  
Keyword(s):  
Single Crystals ◽  
Electron Energy ◽  
Point Defects ◽  
Electron Irradiation ◽  
Flux Pinning ◽  
Small Clusters

ABSTRACTSingle crystals of R1Ba2Cu3O7–8, (R=Y, Eu and Gd), have been irradiated with 0.4–1.0 MeV electrons in directions near the c-axis. An incident threshold electron energy for producing flux pinning defects has been found. In-situ TME studies found no visible defects induced by electron irradiation. This means that point defects or small clusters ( ≤ 20 Å) are responsible for the extra pinning. A consistent interpretation of the data suggests that the most likely pinning defect is the displacement of a Cu atom from the CuO2 planes.

Flux pinning and magnetic relaxation in Ga-doped LiFeAs single crystals

2012 ◽  
Vol 112 (5) ◽  
pp. 053914 ◽  
Author(s):  
L. Shlyk ◽  
M. Bischoff ◽  
E. Rose ◽  
R. Niewa
Keyword(s):  
Single Crystals ◽  
Magnetic Relaxation ◽  
Flux Pinning

The stability of dislocation networks under various oxygen-doping conditions in superconducting Bi2Sr2CaCu2Oy single crystals and their influence on the flux pinning properties

1994 ◽  
Vol 52 ◽  
pp. 802-803
Author(s):  
Y. Feng ◽  
X. Y. Cai ◽  
R. J. Kelley ◽  
D. C. Larbalestier
Keyword(s):  
Single Crystals ◽  
Oxygen Content ◽  
Basal Plane ◽  
Flux Pinning ◽  
Pinning Centers ◽  
Before And After ◽  
Anomalous Peak ◽  
Basal Plane Dislocation ◽  
The Stability ◽  
Further Development

The issue of strong flux pinning is crucial to the further development of high critical current density Bi-Sr-Ca-Cu-O (BSCCO) superconductors in conductor-like applications, yet the pinning mechanisms are still much debated. Anomalous peaks in the M-H (magnetization vs. magnetic field) loops are commonly observed in Bi2Sr2CaCu2Oy (Bi-2212) single crystals. Oxygen vacancies may be effective flux pinning centers in BSCCO, as has been found in YBCO. However, it has also been proposed that basal-plane dislocation networks also act as effective pinning centers. Yang et al. proposed that the characteristic scale of the basal-plane dislocation networksmay strongly depend on oxygen content and the anomalous peak in the M-H loop at ˜20-30K may be due tothe flux pinning of decoupled two-dimensional pancake vortices by the dislocation networks. In light of this, we have performed an insitu observation on the dislocation networks precisely at the same region before and after annealing in air, vacuumand oxygen, in order to verify whether the dislocation networks change with varying oxygen content Inall cases, we have not found any noticeable changes in dislocation structure, regardless of the drastic changes in Tc and the anomalous magnetization. Therefore, it does not appear that the anomalous peak in the M-H loops is controlled by the basal-plane dislocation networks.

The Hydrostatic Pressure Effect on Elastic Properties of B2-Phase Single Crystals Ti50Ni48Fe2and Ti50Ni45Fe5Alloys

1995 ◽  
Vol 05 (C8) ◽  
pp. C8-729-C8-734
Author(s):  
A.I. Lotkov ◽  
V.P. Lapshin ◽  
V.A. Goncharova ◽  
H.V Chernysheva ◽  
V.N. Grishkov ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Single Crystals ◽  
Elastic Properties ◽  
Pressure Effect ◽  
B2 Phase

Evolution of Pore Ordering during Anodizing of Aluminum Single Crystals: In Situ Small-Angle X-ray Scattering Study

2021 ◽  
Author(s):  
Ilya V. Roslyakov ◽  
Andrei P. Chumakov ◽  
Andrei A. Eliseev ◽  
Alexey P. Leontiev ◽  
Oleg V. Konovalov ◽  
...  
Keyword(s):  
Single Crystals ◽  
Small Angle ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Study ◽  
Ray Scattering

Enhanced flux pinning and fishtail effect in spiral grown Bi2Sr2CaCu2Oy single crystals

1997 ◽  
Vol 282-287 ◽  
pp. 2125-2126 ◽  
Author(s):  
X.L. Wang ◽  
J. Horvat ◽  
H.K. Liu ◽  
S.X. Dou
Keyword(s):  
Single Crystals ◽  
Flux Pinning
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