Kuang, M.Q.; Wu, S.Y.; Zhang, Z.H.; Song, B.T.
(Condensed Matter Physics, 2011)
The ⁶³Cu Knight shifts and g factors for the normal state of YBa₂Cu₃O₇ in tetragonal phase are theoretically studied in a uniform way from the high (fourth-) order perturbation formulas of these parameters for a 3d⁹ ion ...