来自ESR测量的YBa2Cu3O7−δ中Cu3+的证据:重新评估

Physica B+C Pub Date : 1988-08-01 DOI:10.1016/0378-4363(88)90306-3

M.D. Sastry

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引用次数: 2

摘要

Blank et al. [Physica 145B(1987) 222]在最近的一篇文章中报道了对YBa2Cu3O7−δ的q波段ESR测量结果，表明存在10%至15%的Cu3+。本文表明，他们在g=2.08时将ESR线分配给Cu3+是不正确的。进一步指出不能排除这条线是低自旋Cu4+的归属。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Evidence for Cu3+ in YBa2Cu3O7−δ from ESR measurements: A reassessment

Blank et al. [Physica 145B (1987) 222] in a recent letter reported Q-band ESR measurements on YBa₂Cu₃O_7−δ suggesting the presence of 10 to 15% of Cu³⁺. It is shown in this article that their assignment of the ESR line at g=2.08 to Cu³⁺ is incorrect. Further it is pointed out that the assignment of this line to low-spin Cu⁴⁺ cannot be ruled out.

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Physica B+C

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