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Spin-phonon interaction and band effects in the high-T C superconductor HgBa 2CuO 4 by Jarlborg, T. is a scholarly article available to read on EtoBox.

What is Spin-phonon interaction and band effects in the high-T C superconductor HgBa 2CuO 4 about?

Band calculations show that a stripe-like anti-ferromagnetic spin wave is enforced by a 'half-breathing' phonon distortion within the CuO plane of HgBa_2CuO_4. This spin-phonon coupling is increased further by shear distortion and by increased distance between Cu and apical oxygens. The effects from spin-phonon coupling are consistent with many observations in high-T_C materials. Spin-phonon coupling can be important for the mechanism of spin fluctuations and superconductivity, although the effects are quantitatively weak when using the local density potential.

Author

Jarlborg, T.

Published

2003

Language

EN