Correlation effects in the electronic structure of high Tc superconductors期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Correlation effects in the electronic structure of high Tc superconductors

Institution:	1. Department of Orthopaedic Surgery, Vanderbilt University Medical Center, 1215 21st Ave S #3200, Nashville, TN 37232, USA;2. Department of Biostatistics, Vanderbilt University Medical Center, 2525 West End Ave Ste 1100, Nashville, TN 37203, USA;3. Center for Musculoskeletal Research, Vanderbilt University Medical Center, 1211 Medical Center Dr, Nashville, TN 37232, USA;4. Department of Neurosurgery, Mayo Clinic, 200 First St SW Floor 8. Rochester, MN 55905, USA;5. Neuroscience Institute, Atrium Health and Department of Neurosurgery, Carolinas Medical Center, Charlotte, North Carolina; Carolina Neurosurgery and Spine Associates, Charlotte, North Carolina, 1021 Morehead Medical Dr, Charlotte, NC 28204, USA;6. Department of Physical Medicine & Rehabilitation, Osher Center for Integrative Health, Vanderbilt University Medical Center, 3401 West End Ave Suite 380, Nashville, TN 37203, USA;7. Department of Neurological Surgery, Vanderbilt University Medical Center, The Village at Vanderbilt, 1500 21st Ave S Suite 1506, Nashville, TN 37212, USA

Abstract:	We model Cu-O high T_c superconductors by a generalized Hubbard Hamiltonian. We obtain the ground state for finite linear chain systems exactly. This allows us to calculate physical quantities to show that: a) those systems can change from a highly ionic to a highly metallic state as holes are added. b) In the metallic state holes tend to form pairs in next nearest neighbour sites.

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