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cond-mat.supr-con2005
Anomalous precursor diamagnetism at low reduced magnetic fields and the role of Tc inhomogeneities in the superconductors Pb55In45 and underdoped La1.9Sr0.1CuO4
L. Cabo, F. Soto, M. Ruibal +2
The magnetic field dependence of the magnetization was measured above the superconducting transition in a high-Tc underdoped cuprate La1.9Sr0.1CuO4 and in a low-Tc alloy (Pb55In45)…
cond-mat.supr-con2005
Observation of enhanced fluctuation diamagnetism in lanthanum superconductors with dilute magnetic impurities
Felix Soto, Lucia Cabo, Jesus Mosqueira +3
The fluctuation-induced diamagnetism (FD), associated with the presence of precursor Cooper pairs in the normal state, has been measured in lanthanum with dilute magnetic (Pr) and…
cond-mat.supr-con2005
Magnetic and electrical characterization of lanthanum superconductors with dilute Lu and Pr impurities
F. Soto, L. Cabo, J. Mosqueira +1
In this work we present measurements of the electrical conductivity and of the magnetization of La and of La-Pr and La-Lu dilute (up to 2 atomic percent) alloys, from which we dete…