Search Results - "Sikora, Olga"
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Seeing the light: Experimental signatures of emergent electromagnetism in a quantum spin ice
Published in Physical review. B, Condensed matter and materials physics (30-08-2012)“…The "spin-ice" state found in the rare-earth pyrochlore magnets Ho sub(2) Ti sub(2) O sub(7) and Dy sub(2) Ti sub(2) O sub(7) offers a beautiful realization of…”
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2
Variational Monte Carlo simulations using tensor-product projected states
Published in Physical review. B, Condensed matter and materials physics (08-04-2015)“…We propose an efficient numerical method, which combines the advantages of recently developed tensor-network based methods and standard trial wave functions,…”
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3
Density functional theory study of Au-fcc/Ge and Au-hcp/Ge interfaces
Published in Beilstein journal of nanotechnology (2023)“…In recent years, nanostructures with hexagonal polytypes of gold have been synthesised, opening new possibilities in nanoscience and nanotechnology. As bulk…”
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4
Quantum ice: a quantum Monte Carlo study
Published in Physical review letters (10-02-2012)“…Ice states, in which frustrated interactions lead to a macroscopic ground-state degeneracy, occur in water ice, in problems of frustrated charge order on the…”
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5
Quantum liquid with deconfined fractional excitations in three dimensions
Published in Physical review letters (11-12-2009)“…Excitations which carry "fractional" quantum numbers are known to exist in one dimension in polyacetylene, and in two dimensions, in the fractional quantum…”
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6
Spin and mixed spin-and-orbital excitations in
Published in Physica. B, Condensed matter (01-05-2006)Get full text
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7
Spin and mixed spin-and-orbital excitations in LaMnO 3
Published in Physica. B, Condensed matter (2006)“…We investigate the stability of antiferromagnetic phases at Hund's exchange coupling between two e g electrons J H = 0 in a model of LaMnO 3, and derive spin…”
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Density functional theory study of experimentally observed Au/Ge interfaces
Published 22-12-2022“…In recent years, nanostructures with hexagonal polytypes of gold have been synthesised, opening new possibilities in nanoscience and technology. As bulk gold…”
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Journal Article -
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Seeing the light: Experimental signatures of emergent electromagnetism in a guantum spin ice
Published in Physical review. B, Condensed matter and materials physics (15-08-2012)“…The "spin-ice" state found in the rare-earth pyrochlore magnets Ho sub(2) Ti sub(2) O sub(7) and Dy sub(2) Ti sub(2) O sub(7) offers a beautiful realization of…”
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Journal Article -
10
Spin and mixed spin-and-orbital excitations in LaMnO3
Published in Physica. B, Condensed matter (01-05-2006)“…We investigate the stability of antiferromagnetic phases at Hund's exchange coupling between two eg electrons JH=0 in a model of LaMnO3, and derive spin and…”
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Conference Proceeding Journal Article -
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Origin of monoclinic distortion and its impact on the electronic properties in KO$_2
Published 30-07-2020“…Phys. Rev. B 102, 085129 (2020) We use the density functional theory and lattice dynamics calculations to investigate the properties of potassium superoxide…”
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12
Extended quantum U ( 1 ) -liquid phase in a three-dimensional quantum dimer model
Published in Physical review. B, Condensed matter and materials physics (21-09-2011)“…Recently, quantum dimer models have attracted a great deal of interest as a paradigm for the study of exotic quantum phases. Much of this excitement has…”
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Magnetic order and excitations in half-doped manganites
Published in Physica. B, Condensed matter (2005)Get full text
Conference Proceeding -
14
Magnetic order and excitations in half-doped manganites
Published in Physica. B, Condensed matter (30-04-2005)“…We investigate possible ground states and spin excitations in the model of effective Mn–O–Mn polarons, for different values of magnetic interactions on a…”
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15
Classical and quantum theories of proton disorder in hexagonal water ice
Published 31-03-2016“…Phys. Rev. B 93, 125143 (2016) It has been known since the pioneering work of Bernal, Fowler and Pauling that common, hexagonal (Ih) water ice is the archetype…”
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16
Electron-Following Mapping Transformations from the Electronegativity Equalization Principle
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (15-06-2000)“…The so-called electron-following (EF) mapping relations for the closed molecular systems are derived within the charge sensitivity analysis (CSA) in atomic…”
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17
Seeing the light : experimental signatures of emergent electromagnetism in a quantum spin ice
Published 10-08-2012“…Phys. Rev. B 86, 075154 (2012) The "spin ice" state found in the rare earth pyrochlore magnets Ho2Ti2O7 and Dy2Ti2O7 offers a beautiful realisation of…”
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Journal Article -
18
Charge and orbital order in half-doped manganites
Published in Physica. B, Condensed matter (01-06-2002)“…We investigate the electronic properties and microscopic reasons of stability of the coexisting charge, magnetic and orbital ordering in half-doped manganites,…”
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19
Of chain-based order and quantum spin liquids in dipolar spin ice
Published 29-07-2015“…Phys. Rev. B 92, 094418 (2015) Recent experiments on the spin-ice material Dy2Ti2O7 suggest that the Pauling "ice entropy", characteristic of its classical…”
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Journal Article -
20
Variational Monte Carlo simulations using tensor-product projected states
Published 21-05-2015“…Phys. Rev. B 91, 165113 (2015) We propose an efficient numerical method, which combines the advantages of recently developed tensor-network based methods and…”
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Journal Article