title: EPR study of some rare-earth ions (Dy3+, Tb3+, and Nd3+) in YBa2Cu3O6-compound.
abstract: We investigate the low temperature X-band electron paramagnetic resonance (EPR) of YBa(2)Cu(3)O(x) compounds with x congruent with 6.0 doped with Dy(3+), Tb(3+), and Nd(3). The EPR spectra of Dy(3+) and Tb(3+) have been identified. The EPR of Tb(3+) is used also to study the effect of suppression of high T(c) superconductivity by doping with Tb(3+). The EPR of Nd(3+) is probably masked by the intense resonance of Cu(2+). All experimental EPR results compare well with theoretical estimations.
authors.affiliation: MRS Laboratory, Kazan State University, 420008, Kremlevskaya 18, Kazan, Russia. marat.gafurov@ksu.ru
authors.forename: M R
authors.initials: MR
authors.lastname: Gafurov
authors.forename: V A
authors.initials: VA
authors.lastname: Ivanshin
authors.forename: I N
authors.initials: IN
authors.lastname: Kurkin
authors.forename: M P
authors.initials: MP
authors.lastname: Rodionova
authors.forename: H
authors.initials: H
authors.lastname: Keller
authors.forename: M
authors.initials: M
authors.lastname: Gutmann
authors.forename: U
authors.initials: U
authors.lastname: Staub