Magnetocrystalline symmetry, spin statics and dynamics in high-temperature superconductors

V. G. Bar'yakhtar, V. M. Loktev, D. A. Yablonskii

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


The symmetry analysis of the magnetic structures of La2CuO4 and YBa2Cu3O6+δ (δ ≲0.4) antiferromagnetic oxide has been carried out. The spin configurations and spin-reorientation transition fields have been found. The frequencies of uniform spin oscillations and the external field dependence of their polarization properties have been calculated. It has been shown that the spin excitation branches may include exchange modes among which some dipole-active modes can be present. The spectrum of the inelastic light scattering accompanied with the excitation of spin and libration (tilting) freedom degrees has been discussed.

Original languageEnglish
Pages (from-to)667-678
Number of pages12
JournalPhysica C: Superconductivity and its applications
Issue number5
StatePublished - Dec 1 1988


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