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arXiv 1502.05353cond-mat.supr-con
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HTSC铜酸盐中t-J哈密顿量的直接交换与间接交换

Direct Exchange versus the indirect Exchange of the t-J Hamiltonian in HTSC Cuprates

Moshe Dayan

摘要:

计算了高温超导铜氧化物反键波函数的直接交换积分和传递积分。直接交换积分产生的值比t-J哈密顿量的间接交换大三倍。它还预测了相邻平行自旋的正交换能,与t-J哈密顿量预测的零能量相反。提出了一种修正的t-J哈密顿量,并讨论了结果的意义。

英文摘要:

The direct exchange integral and the transfer integral are calculated for the anti-bonding wave-function of the HTSC cuprates. The direct exchange integral yields a value three times larger than the indirect exchange of the t-J Hamiltonian. It also predicts positive exchange energy for neighboring parallel spins, contrary to the prediction of zero energy by the t-J Hamiltonian. A modified t-J Hamiltonian is proposed, and the implications of the results are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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