@article {Guskos1999558,
	title = {Time evolution of the magnetic properties of la0.5R0.5Ba2Cu3O6+x(R = rare earth) high-Tc superconductors},
	journal = {Physica C: Superconductivity and its Applications},
	volume = {317-318},
	year = {1999},
	note = {cited By 1},
	pages = {558-560},
	abstract = {The magnetic properties of the mixed high-Tc superconductors Ea0.5R0.5Ba2Cu3O6+x (R - rare earth) are studied after prolonged {\textquoteright}aging{\textquoteright} at room temperature (RT) for 1 year. Enhancement of the superconducting properties comprising the increase of the inhomogeneous diamagnetic signal for members of the series with the larger R-ion radius is detected after RT {\textquoteright}aging{\textquoteright}. For the members with the larger R-ion radius the diamagnetic signal has been come more stronger whereas for the members with the smaller R-ion radius the time evolution of the superconducting properties remained almost the unchanged and the diamagnetic signal slightly decreases after {\textquoteright}aging{\textquoteright}. The growth of the EPR intensity of localized Cu2+ centers complying with the rise of the normal-state magnetic susceptibility after prolonged storage at RT, is detected. The time evolution effects are related to slow ion diffusion processes that can be induced by stress-relaxation in the mixed Ea0.5R0.5Ba2Cu3O6+x structure, most pronounced for large R-ion radius. {\textcopyright} 1999 Elsevier Science B.V. All rights reserved.},
	doi = {10.1016/S0921-4534(99)00129-X},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-4243473744\&doi=10.1016\%2fS0921-4534\%2899\%2900129-X\&partnerID=40\&md5=e470eed51fcf9c496c1d144b826bb3a4},
	author = {Guskos, N. and V. Likodimos and Glenis, S. and Nabialek, A. and Szymczak, H. and Wabia, M.}
}
