Quantum Monte Carlo simulations of disordered magnetic and superconducting materials

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Over the last decade, Quantum Monte Carlo (QMC) calculations for tight binding Hamiltonians like the Hubbard and Anderson lattice models have made the transition from addressing abstract issues concerning the effects of electron-electron correlations on magnetic and metal-insulator transitions, to concrete contact with experiment. This paper presents results of applications of �determinant� QMC to systems with disorder such as the conductivity of thin metallic films, the behavior of the magnetic susceptibility in doped semiconductors, and Zn doped cuprate superconductors. Finally, preliminary attempts to model the Kondo volume collapse in rare earth materials are discussed.

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Scalettar, R. T. January 28, 1998.

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Description

Over the last decade, Quantum Monte Carlo (QMC) calculations for tight binding Hamiltonians like the Hubbard and Anderson lattice models have made the transition from addressing abstract issues concerning the effects of electron-electron correlations on magnetic and metal-insulator transitions, to concrete contact with experiment. This paper presents results of applications of �determinant� QMC to systems with disorder such as the conductivity of thin metallic films, the behavior of the magnetic susceptibility in doped semiconductors, and Zn doped cuprate superconductors. Finally, preliminary attempts to model the Kondo volume collapse in rare earth materials are discussed.

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1.2 Megabytes

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  • Materials Research Society Symposium 1997 Fall Meeting, Boston, MA, December 1-5, 1997

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  • Other: DE00001798
  • Report No.: UCRL-JC-129733
  • Grant Number: W-7405-Eng-48
  • Office of Scientific & Technical Information Report Number: 1798
  • Archival Resource Key: ark:/67531/metadc666779

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  • January 28, 1998

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  • June 29, 2015, 9:42 p.m.

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  • May 6, 2016, 11:04 p.m.

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Scalettar, R. T. Quantum Monte Carlo simulations of disordered magnetic and superconducting materials, article, January 28, 1998; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc666779/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.