Details

Autor(en) / Beteiligte

• Corboz, Philippe
• Rice, T M
• Troyer, Matthias

Titel

Competing states in the t-J model: uniform D-wave state versus stripe state

Ist Teil von

• Physical review letters, 2014-07, Vol.113 (4), p.046402-046402, Article 046402

Ort / Verlag

United States

Erscheinungsjahr

2014

Quelle

American Physical Society

Beschreibungen/Notizen

• Variational studies of the t-J model on the square lattice based on infinite projected-entangled pair states confirm an extremely close competition between a uniform d-wave superconducting state and different stripe states. The site-centered stripe with an in-phase d-wave order has an equal or only slightly lower energy than the stripe with antiphase d-wave order. The optimal stripe filling is not constant but increases with J/t. A nematic anisotropy reduces the pairing amplitude and the energies of stripe phases are lowered relative to the uniform state with increasing nematicity.