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Ferromagnetic polarons in the one-dimensional t−t'−J model

✍ Scribed by Igor Sega; Anton Ramšak; Peter Prelovšek


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
280 KB
Volume
185-189
Category
Article
ISSN
0921-4534

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✍ C.Stephen Hellberg; E.J. Mele 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 193 KB

We study the t-J model in one dimension by combining a variational approach and an exact ground-state projection method. We find that the model exhibits Luttinger-liquid behavior for most of the phase diagram before the critical J/t for phase separation. However, at small densities and high interact