Browsing by Author "Vishina A."

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Inhomogeneous broadening of the EPR signal of Yb3+ ions in domain walls of lightly doped antiferromagnetic cuprates

Vishina A.; Maisuradze A.; Shengelaya A.; Kochelaev B.; Keller H. (2012)

Distortion of the long-range antiferromagnetic order in the YBa2Cu3O6+y is investigated by the electron paramagnetic resonance (EPR) measurements for y = 0.1 - 0.4. In the case of the doping level y = 0.2, 0.3 the EPR ...
Spin excitations and electron paramagnetic resonance in two-layer antiferromagnetic system Y1-xYbxBa2Cu 3O6+y

Vishina A.; Maisuradze A.; Shengelaya A.; Kochelaev B.; Keller H. (2012)

An experimental and theoretical study of the EPR spectrum of Y 0.98Yb0.02Ba2Cu3O6.1 is reported. A strong anisotropy of the EPR linewidth is revealed for the parallel and perpendicular orientations of the external magnetic ...
Spin-magnon relaxation of Yb3+-ions in antiferromagnetic cuprate Y1-xYbxBa2Cu3O6+y

Vishina A.; Maisuradze A. (2012)

The spin relaxation of Yb3+-ions due to their coupling to antiferromagnetic spin waves existing in CuO2 planes in YBa2Cu3O6+y compound is reported. It is shown that it results in a strong temperature dependence of electron ...

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