The Paramagnetism Carried by Paramagnetic Ions and its Effect on the Superconductivity in High TC Superconductors

An investigation of the spin-Hamiltonian parameters for Gd3+-doped YBa2Cu3O6+y(y= 0.06) superconductor

“…The calculated spin-Hamiltonian parameters g , g ⊥ , b 0 2 , b 0 4 , b 4 4 , b 0 6 and b 4 6 are compared with the experimental values in table 2.…”

“…Substitutions of rare earth ions Re 3+ for Y 3+ ions in YBa 2 Cu 3 O 6+y superconductors have been widely studied in order to find out how much the superconductivity and rare earth magnetism depend upon the rare earth impurities [1][2][3][4]. So many spectroscopic experiments were performed for the Re 3+ -doped YBa 2 Cu 3 O 6+y superconductors [5][6][7][8][9], particularly for the electron paramagnetic resonance (EPR) spectra of Gd 3+ -doped YBa 2 Cu 3 O 6+y superconductors [9][10][11][12][13][14] because these EPR spectra, unlike for other rare earth dopants, could be obtained even at room temperatures.…”