EPR study of some rare-earth ions (Dy3+, Tb3+, and Nd3+) in YBa2Cu3O6-compound.
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.
Gafurov
M R
MR
MRS Laboratory, Kazan State University, 420008, Kremlevskaya 18, Kazan, Russia. marat.gafurov@ksu.ru
Ivanshin
V A
VA
Kurkin
I N
IN
Rodionova
M P
MP
Keller
H
H
Gutmann
M
M
Staub
U
U