scholarly journals Peak effect phenomena, surface superconductivity and paramagnetic Meissner effect in a spherical single crystal of niobium

2009 ◽  
Vol 150 (5) ◽  
pp. 052041 ◽  
Author(s):  
Pradip Das ◽  
C V Tomy ◽  
H Takeya ◽  
S Ramakrishnan ◽  
A K Grover
Keyword(s):  
Single Crystal ◽  
Meissner Effect ◽  
Peak Effect ◽  
Paramagnetic Meissner Effect ◽  
Surface Superconductivity

scholarly journals Paramagnetic Meissner effect at high fields in YCaBaCuO single crystal

2012 ◽  
Vol 391 ◽  
pp. 012124
Author(s):  
F T Dias ◽  
V N Vieira ◽  
A L Falck ◽  
D L da Silva ◽  
P Pureur ◽  
...  
Keyword(s):  
Single Crystal ◽  
Meissner Effect ◽  
Paramagnetic Meissner Effect ◽  
High Fields

scholarly journals Paramagnetic Meissner effect at high fields in YCaBaCuO single crystal and melt-textured YBaCuO

2010 ◽  
Vol 470 ◽  
pp. S111-S112 ◽  
Author(s):  
F.T. Dias ◽  
V.N. Vieira ◽  
M.L. de Almeida ◽  
A.L. Falck ◽  
P. Pureur ◽  
...  
Keyword(s):  
Single Crystal ◽  
Meissner Effect ◽  
Paramagnetic Meissner Effect ◽  
High Fields

High-Field Paramagnetic Meissner Effect in Ga-Implanted Single Crystal

2016 ◽  
Vol 26 (3) ◽  
pp. 1-4
Author(s):  
V. N. Vieira ◽  
F. T. Dias ◽  
C. P. Gouvea ◽  
P. Pureur ◽  
J. Schaf ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Field ◽  
Meissner Effect ◽  
Paramagnetic Meissner Effect

Surface superconductivity, positive field cooled magnetization, and peak-effect phenomenon observed in a spherical single crystal of niobium

2008 ◽  
Vol 78 (21) ◽  
Author(s):  
Pradip Das ◽  
C. V. Tomy ◽  
S. S. Banerjee ◽  
H. Takeya ◽  
S. Ramakrishnan ◽  
...  
Keyword(s):  
Single Crystal ◽  
Peak Effect ◽  
Surface Superconductivity

scholarly journals Paramagnetic Meissner effect in multiply-connected superconductors

2000 ◽  
Vol 62 (21) ◽  
pp. 14380-14383 ◽  
Author(s):  
A. P. Nielsen ◽  
A. B. Cawthorne ◽  
P. Barbara ◽  
F. C. Wellstood ◽  
C. J. Lobb ◽  
...  
Keyword(s):  
Meissner Effect ◽  
Paramagnetic Meissner Effect ◽  
Multiply Connected

NOVEL MAGNETIC PROPERTIES IN MULTI-WALLED CARBON NANOTUBE MATS: CONSISTENT WITH THE PARAMAGNETIC MEISSNER EFFECT DUE TO ULTRAHIGH-TEMPERATURE SUPERCONDUCTIVITY

2009 ◽  
Vol 23 (20n21) ◽  
pp. 4285-4296 ◽  
Author(s):  
GUO-MENG ZHAO ◽  
PIEDER BEELI
Keyword(s):  
Carbon Nanotube ◽  
Saturation Magnetization ◽  
Magnetic Measurements ◽  
Meissner Effect ◽  
Magnetic Data ◽  
Ferromagnetic Transition ◽  
Measured Concentration ◽  
Paramagnetic Meissner Effect ◽  
Multi Walled Carbon Nanotube ◽  
Ultrahigh Temperature

We report magnetic measurements up to 1200 K on iron-contaminated multi-walled carbon nanotube mats with a Quantum Design vibrating sample magnetometer. Extensive magnetic data consistently show a ferrromagnetic transition at about 1000 K and a ferromagnetic-like transition at about 1275 K. The ferromagnetic transition at about 1000 K is associated with an Fe impurity phase and its saturation magnetization is in quantitative agreement with the Fe concentration measured by an inductively coupled plasma mass spectrometer. On the other hand, the saturation magnetization for the ferromagnetic-like phase (at 1275 K) is about four orders of magnitude larger than that expected from the measured concentration of Co or CoFe . We show that this ultrahigh-temperature ferromagnetic-like behavior cannot be explained by ferromagnetism of any Fe -carbon phases, carbon-based phases, or magnetic impurities, but is consistent with the paramagnetic Meissner effect (orbital ferromagnetism) due to the existence of π Josephson junctions in a granular superconductor.

scholarly journals Paramagnetic Meissner effect and strong time dependence at high fields in melt-textured high-T C superconductors

2013 ◽  
Vol 62 (10) ◽  
pp. 1414-1417 ◽  
Author(s):  
Cristol de Paiva Gouvêa ◽  
Fábio Teixeira Dias ◽  
Valdemar das Neves Vieira ◽  
Douglas Langie da Silva ◽  
Jacob Schaf ◽  
...  
Keyword(s):  
Time Dependence ◽  
Meissner Effect ◽  
Paramagnetic Meissner Effect ◽  
High Fields

Phenomenological theory of the paramagnetic Meissner effect

1994 ◽  
Vol 72 (17) ◽  
pp. 2773-2776 ◽  
Author(s):  
Daniel Domínguez ◽  
E. A. Jagla ◽  
C. A. Balseiro
Keyword(s):  
Phenomenological Theory ◽  
Meissner Effect ◽  
Paramagnetic Meissner Effect
Sign in / Sign up

Export Citation Format

Share Document