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Practically useful form of Kim model from hysteresis loop of a superconductor
Ratan Lal
Considering a theoretical hysteresis loop within the Kim model for the Kim constant = 0 it has been found that the expression of obtained in Lal [R. Lal, Physica C 470…
Hump Structure below Tc in the thermal conductivity of MgB2 superconductor
R. Lal, Arpita Vajpayee, V. P. S. Awana +2
A reasonable cause of absence of hump structure in thermal conductivity of MgB2 below the superconducting transition temperature (Tc) lies in the appearance of multigap structure.…
Consistent estimation of the critical current density of a superconductor from hysteresis loops
Ratan Lal
It has been noticed that the critical current density Jc of some of the superconducting samples, calculated on the basis of Bean model, increases with increasing magnetic field H u…
Magnetism, Upper critical field and Thermoelectric power of Magneto-Superconductor RuSr2Eu1.5Ce0.5Cu2O10
R. Lal, V. P. S. Awana, H. Kishan +5
Magnetic susceptibility, M-H plot, magnetoresistance and thermoelectric power of the RuSr2Eu1.5Ce0.5Cu2O10 superconductor are measured. Values of the magnetic transition temperatur…
Experimental study of magneto-superconductor RuSr2Eu1.5Ce0.5Cu2O10: Effect of Mo doping on magnetic behavior and Tc variation
V. P. S. Awana, R. Lal, H. Kishan +3
Mo doped ruthenocuprates Ru1-xMoxSr2Eu1.5Ce0.5Cu2O10 are synthesized for x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0, and their magnetic and superconducting properties are studied. It has…
A comparison of the resistivity behavior of MgB2, AlB2 and AgB2 systems
R. Lal, V. P. S. Awana, K. P. Singh +2
Measurements have been performed of the resistivity of the samples of MgB2, AlB2 and AgB2. The samples show presence of impurities. Analyzing the data in terms of the impurity scat…