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Odd-Parity Triplet Pair Induced by Hund's Rule Coupling

Takashi Hotta·Kazuo Ueda
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Abstract

We discuss microscopic aspects of odd-parity triplet pair in orbital degenerate systems. From the concept of off-diagonal long-range order, a pair state is unambiguously defined as the eigenstate with the maximum eigenvalue of pair correlation function. Performing this scheme by a numerical technique, we clarify that the odd-parity triplet pair occurs as an out-of-phase combination of local triplets induced by Hund's rule coupling for the lattice including two sites in the unit cell.

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Takashi Hotta, Kazuo Ueda. 2004-01-28. Odd-Parity Triplet Pair Induced by Hund's Rule Coupling. https://doi.org/10.1103/physrevlett.92.107007

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