126
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Xu P, Gordon MS. Renormalized Coupled Cluster Approaches in the Cluster-in-Molecule Framework: Predicting Vertical Electron Binding Energies of the Anionic Water Clusters (H2O)n–. J Phys Chem A 2014; 118:7548-59. [DOI: 10.1021/jp5015498] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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127
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Xu P, Zahariev F, Gordon MS. The R–7 Dispersion Interaction in the General Effective Fragment Potential Method. J Chem Theory Comput 2014; 10:1576-87. [DOI: 10.1021/ct500017n] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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128
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Leang SS, Rendell AP, Gordon MS. Quantum Chemical Calculations Using Accelerators: Migrating Matrix Operations to the NVIDIA Kepler GPU and the Intel Xeon Phi. J Chem Theory Comput 2014; 10:908-12. [DOI: 10.1021/ct4010596] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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129
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Roskop LB, Kong L, Valeev EF, Gordon MS, Windus TL. Assessment of Perturbative Explicitly Correlated Methods for Prototypes of Multiconfiguration Electronic Structure. J Chem Theory Comput 2013; 10:90-101. [PMID: 26579894 DOI: 10.1021/ct4006773] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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130
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131
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Xu P, Gordon MS. Charge transfer interaction using quasiatomic minimal-basis orbitals in the effective fragment potential method. J Chem Phys 2013; 139:194104. [DOI: 10.1063/1.4829509] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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132
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Copel M, Kuroda MA, Gordon MS, Liu XH, Mahajan SS, Martyna GJ, Moumen N, Armstrong C, Rossnagel SM, Shaw TM, Solomon PM, Theis TN, Yurkas JJ, Zhu Y, Newns DM. Giant piezoresistive on/off ratios in rare-earth chalcogenide thin films enabling nanomechanical switching. NANO LETTERS 2013; 13:4650-4653. [PMID: 24016226 DOI: 10.1021/nl401710f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Sophisticated microelectromechanical systems for device and sensor applications have flourished in the past decade. These devices exploit piezoelectric, capacitive, and piezoresistive effects, and coupling between them. However, high-performance piezoresistivity (as defined by on/off ratio) has primarily been observed in macroscopic single crystals. In this Letter, we show for the first time that rare-earth monochalcogenides in thin film form can modulate a current by more than 1000 times due to a pressure-induced insulator to metal transition. Furthermore, films as thin as 8 nm show a piezoresistive response. The combination of high performance and scalability make these promising candidates for nanoscale applications, such as the recently proposed piezoelectronic transistor (PET). The PET would mechanically couple a piezoelectric thin film with a piezoresistive switching layer, potentially scaling to higher speeds and lower powers than today's complementary metal-oxide-semiconductor technology.
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133
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Pruitt SR, Leang SS, Xu P, Fedorov DG, Gordon MS. Hexamers and witchamers: Which hex do you choose? COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.06.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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134
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Yan K, Duchimaza Heredia JJ, Ellern A, Gordon MS, Sadow AD. Lewis Base Mediated β-Elimination and Lewis Acid Mediated Insertion Reactions of Disilazido Zirconium Compounds. J Am Chem Soc 2013; 135:15225-37. [DOI: 10.1021/ja407950e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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135
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Gordon MS, Smith QA, Xu P, Slipchenko LV. Accurate first principles model potentials for intermolecular interactions. Annu Rev Phys Chem 2013; 64:553-78. [PMID: 23561011 DOI: 10.1146/annurev-physchem-040412-110031] [Citation(s) in RCA: 133] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The general effective fragment potential (EFP) method provides model potentials for any molecule that is derived from first principles, with no empirically fitted parameters. The EFP method has been interfaced with most currently used ab initio single-reference and multireference quantum mechanics (QM) methods, ranging from Hartree-Fock and coupled cluster theory to multireference perturbation theory. The most recent innovations in the EFP model have been to make the computationally expensive charge transfer term much more efficient and to interface the general EFP dispersion and exchange repulsion interactions with QM methods. Following a summary of the method and its implementation in generally available computer programs, these most recent new developments are discussed.
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136
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Devarajan A, Markutsya S, Lamm MH, Cheng X, Smith JC, Baluyut JY, Kholod Y, Gordon MS, Windus TL. Ab Initio Study of Molecular Interactions in Cellulose Iα. J Phys Chem B 2013; 117:10430-43. [DOI: 10.1021/jp406266u] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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137
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Asadchev A, Gordon MS. Fast and Flexible Coupled Cluster Implementation. J Chem Theory Comput 2013; 9:3385-92. [DOI: 10.1021/ct400054m] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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138
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De Silva N, Minezawa N, Gordon MS. Excited-State Hydrogen Atom Transfer Reaction in Solvated 7-Hydroxy-4-methylcoumarin. J Phys Chem B 2013; 117:15386-94. [DOI: 10.1021/jp404686c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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139
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De Silva N, Willow SY, Gordon MS. Solvent induced shifts in the UV spectrum of amides. J Phys Chem A 2013; 117:11847-55. [PMID: 23758065 DOI: 10.1021/jp402999p] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Solvent effects on the electronic spectra of formamide and trans-N-methylacetamide are studied using four different levels of theory: singly excited configuration interaction (CIS), equations of motion coupled-cluster theory with singles and doubles (EOM-CCSD), completely renormalized coupled-cluster theory with singles and doubles with perturbative triple excitations (CR-EOM-CCSD(T)), and time-dependent density functional theory (TDDFT), employing small clusters of water molecules. The simulated electronic spectrum is obtained via molecular dynamics simulations with 100 waters modeled with the effective fragment potential method and exhibits a blue-shift and red-shift, respectively, for the n → π* and πnb → π* vertical excitation energies, in good agreement with the experimental electronic spectra of amides.
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140
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Zahariev F, Leang SS, Gordon MS. Functional derivatives of meta-generalized gradient approximation (meta-GGA) type exchange-correlation density functionals. J Chem Phys 2013; 138:244108. [DOI: 10.1063/1.4811270] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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141
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Markutsya S, Devarajan A, Baluyut JY, Windus TL, Gordon MS, Lamm MH. Evaluation of coarse-grained mapping schemes for polysaccharide chains in cellulose. J Chem Phys 2013; 138:214108. [DOI: 10.1063/1.4808025] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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142
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Pruitt SR, Steinmann C, Jensen JH, Gordon MS. Fully Integrated Effective Fragment Molecular Orbital Method. J Chem Theory Comput 2013; 9:2235-49. [DOI: 10.1021/ct4001119] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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143
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Roskop L, Fedorov DG, Gordon MS. Diffusion energy profiles in silica mesoporous molecular sieves modelled with the fragment molecular orbital method. Mol Phys 2013. [DOI: 10.1080/00268976.2013.780102] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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144
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Schmidt MW, Gordon MS. The Decomposition of Hydrazine in the Gas Phase and over an Iridium Catalyst. Z PHYS CHEM 2013. [DOI: 10.1524/zpch.2013.0404] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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145
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De Silva N, Njegic B, Gordon MS. Anharmonicity of Weakly Bound Li+–(H2)n (n = 1–3) Complexes. J Phys Chem A 2012; 116:12148-52. [DOI: 10.1021/jp306647s] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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146
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Rios D, Schoendorff G, Van Stipdonk MJ, Gordon MS, Windus TL, Gibson JK, de Jong WA. Roles of Acetone and Diacetone Alcohol in Coordination and Dissociation Reactions of Uranyl Complexes. Inorg Chem 2012; 51:12768-75. [DOI: 10.1021/ic3015964] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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147
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Xu P, Gordon MS, Nguyen B. Theoretical Study of the Binding of Silane (SiH4) with Borane (BH3), Diborane (B2H6), and Boron Trichloride (BCl3): The Role of Core–Electron Correlation. J Phys Chem A 2012; 116:11668-72. [DOI: 10.1021/jp306765b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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148
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Gaenko A, Windus TL, Sosonkina M, Gordon MS. Design and Implementation of Scientific Software Components to Enable Multiscale Modeling: The Effective Fragment Potential (QM/EFP) Method. J Chem Theory Comput 2012; 9:222-31. [DOI: 10.1021/ct300614z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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149
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Brorsen KR, Minezawa N, Xu F, Windus TL, Gordon MS. Fragment Molecular Orbital Molecular Dynamics with the Fully Analytic Energy Gradient. J Chem Theory Comput 2012; 8:5008-12. [DOI: 10.1021/ct3007869] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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150
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Asadchev A, Gordon MS. New Multithreaded Hybrid CPU/GPU Approach to Hartree–Fock. J Chem Theory Comput 2012; 8:4166-76. [DOI: 10.1021/ct300526w] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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