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arXiv · 0903.1491

d-Wave Spin Density Wave phase in the Attractive Hubbard Model with Spin Polarization

H. Tamaki·K. Miyake·Y. Ohashi
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Abstract

We investigate the possibility of unconventional spin density wave (SDW) in the attractive Hubbard model with finite spin polarization. We show that pairing and density fluctuations induce the transverse d-wave SDW near the half-filling. This novel SDW is related to the d-wave superfluidity induced by antiferromagnetic spin fluctuations, in the sense that they are connected with each other through Shiba's attraction-repulsion transformation. Our results predict the d-wave SDW in real systems, such as cold Fermi atom gases with population imbalance and compounds involving valence skipper elements.

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H. Tamaki, K. Miyake, Y. Ohashi. 2009-03-09. d-Wave Spin Density Wave phase in the Attractive Hubbard Model with Spin Polarization. https://doi.org/10.1143/jpsj.78.073001

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