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

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.

4 pages, 3 figures, to appear in Phys. Rev. Lett

References in corpus (1)

• Construction of microscopic model for f-electron systems on the basis of j-j coupling scheme

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