Abstract
In the present letter, we study the magnetic contribution to the thermal expansion of Cu−O layer in YBa2Cu3O7−δ with the nearly antiferromagnetic Fermi liquid model. Our analysis suggest that this additional thermal expansion due to antiferromagnetic spin fluctuation is the origin of the Cu−O plane buckling.
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Hang-sheng, W., Ping, L. A possible effect caused by spin fluctuations in CuO2 planes in HTSC. Z. Physik B - Condensed Matter 85, 3–5 (1991). https://doi.org/10.1007/BF01387781
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DOI: https://doi.org/10.1007/BF01387781