scholarly journals Effects of Asymmetric Splayed Columnar Defects on the Anomalous Peak Effect in Ba0.6K0.4Fe2As2

2020 ◽  
Vol 89 (9) ◽  
pp. 094705 ◽  
Author(s):  
Ayumu Takahashi ◽  
Sunseng Pyon ◽  
Tadashi Kambara ◽  
Atsushi Yoshida ◽  
Tsuyoshi Tamegai
Keyword(s):  
Peak Effect ◽  
Columnar Defects ◽  
Anomalous Peak

Correlation between Anomalous Peak Effect in Magnetic Hysteresis Loop and Nanoscale Structure forNdBa2Cu3O7-δSingle-Crystal Superconductor

1996 ◽  
Vol 35 (Part 1, No. 7) ◽  
pp. 3882-3886 ◽  
Author(s):  
Masaru Nakamura ◽  
Tsukasa Hirayama ◽  
Yasuji Yamada ◽  
Yuichi Ikuhara ◽  
Yuh Shiohara
Keyword(s):  
Hysteresis Loop ◽  
Magnetic Hysteresis ◽  
Magnetic Hysteresis Loop ◽  
Peak Effect ◽  
Anomalous Peak ◽  
Nanoscale Structure

From an Anomalous Peak Effect to a Second Magnetization Peak in Nb-rich Nb-Ti Alloys

2016 ◽  
Vol 30 (4) ◽  
pp. 1103-1108
Author(s):  
A. M. Ionescu ◽  
I. Ivan ◽  
M. Enculescu ◽  
M. Grigoroscuta ◽  
D. Miu ◽  
...  
Keyword(s):  
Peak Effect ◽  
Ti Alloys ◽  
Anomalous Peak ◽  
Second Magnetization Peak

Peak effect at microwave frequencies in swift heavy ion irradiated YBa2Cu3O7-δthin films - investigation of vortex dynamics

2001 ◽  
Vol 689 ◽  
Author(s):  
Tamalika Banerjee ◽  
A. R. Bhangale ◽  
P. Raychaudhuri ◽  
D. Kanjilal ◽  
R. Pinto
Keyword(s):  
Vortex Dynamics ◽  
Surface Resistance ◽  
Flux Line ◽  
Heavy Ion ◽  
Peak Effect ◽  
Microwave Surface Resistance ◽  
Line Lattice ◽  
Microwave Frequencies ◽  
Columnar Defects ◽  
Pronounced Peak

ABSTRACTThe vortex dynamics at microwave frequencies in YBa2Cu3O7-δ(YBCO) films has been studied. We observe a peak in the microwave surface resistance Rs vs. T (temperature) plots at 4.88 GHz in some films in magnetic fields (upto 0.8 T) whereas a few films do not show a pronounced peak in their surface resistance. This is associated with the ‘peak-effect’ phenomenon and reflects the order-disorder transformation of the flux-line lattice near the transition temperature. Introduction of artificial pinning centers like columnar defects as a result of irradiation with 200 MeV Ag ion leads to the suppression of the peak in films exhibiting the ‘peak-effect’. Interestingly, a peak is seen to develop in those films that initially did not show a peak in the surface resistance before irradiation. These results and the dynamics of the vortices at microwave frequencies for the unirradiated and irradiated films will be discussed.

Anomalous peak-effect in CeRu 2 : effect of disorder

1999 ◽  
Vol 111 (5) ◽  
pp. 263-268 ◽  
Author(s):  
Sujeet Chaudhary ◽  
S.B. Roy ◽  
P. Chaddah
Keyword(s):  
Peak Effect ◽  
Anomalous Peak ◽  
Effect Of Disorder

Anomalous peak effect in Bi2Sr2CaCu2Oy single crystal system

1994 ◽  
Vol 235-240 ◽  
pp. 2819-2820 ◽  
Author(s):  
H. Ikeda ◽  
D.S. Jeon ◽  
M. Akamatu ◽  
R. Yoshizaki
Keyword(s):  
Single Crystal ◽  
Peak Effect ◽  
Crystal System ◽  
Anomalous Peak

Anomalous peak effect in single crystal Bi2Sr2CaCu2O8+ studied by Hall probe magnetometry

1993 ◽  
Vol 213 (1-2) ◽  
pp. 33-42 ◽  
Author(s):  
T. Tamegai ◽  
Y. Iye ◽  
I. Oguro ◽  
K. Kishio
Keyword(s):  
Single Crystal ◽  
Peak Effect ◽  
Hall Probe ◽  
Anomalous Peak
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