Local Order in Fully Deuterated LiquidN-Methylacetamide (C3D7NO) As Studied by Neutron Diffraction and Density-Functional Theory Calculations

2006 ◽  
Vol 110 (49) ◽  
pp. 25021-25025 ◽  
Author(s):  
Sahbi Trabelsi ◽  
Salah Nasr ◽  
Mohamed Bahri ◽  
Marie-Claire Bellissent-Funel

2021 ◽  
Vol 60 (8) ◽  
pp. 6016-6026
Author(s):  
Aydar Rakhmatullin ◽  
Maxim S. Molokeev ◽  
Graham King ◽  
Ilya B. Polovov ◽  
Konstantin V. Maksimtsev ◽  
...  


2016 ◽  
Vol 18 (21) ◽  
pp. 14509-14519 ◽  
Author(s):  
Laura Lander ◽  
Marine Reynaud ◽  
Javier Carrasco ◽  
Nebil A. Katcho ◽  
Christophe Bellin ◽  
...  

The structure of electrochemically active Li1.5Fe(SO4)2 with difference Fourier maps highlighting the two lithium positions, which are also represented in the unit cell.



2020 ◽  
Vol 196 ◽  
pp. 704-709 ◽  
Author(s):  
Igor M. Gussev ◽  
Eric C. O'Quinn ◽  
Gianguido Baldinozzi ◽  
Jörg Neuefeind ◽  
Rodney C. Ewing ◽  
...  


2006 ◽  
Vol 71 (11-12) ◽  
pp. 1525-1531 ◽  
Author(s):  
Wojciech Grochala

The enthalpy of four polymorphs of CaN has been scrutinized at 0 and 100 GPa using density functional theory calculations. It is shown that structures of diamagnetic calcium diazenide (Ca2N2) are preferred over the cubic ferromagnetic polymorph (CaN) postulated before, both at 0 and 100 GPa.



2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Chih-Chuen Lin ◽  
Phani Motamarri ◽  
Vikram Gavini

AbstractWe present a tensor-structured algorithm for efficient large-scale density functional theory (DFT) calculations by constructing a Tucker tensor basis that is adapted to the Kohn–Sham Hamiltonian and localized in real-space. The proposed approach uses an additive separable approximation to the Kohn–Sham Hamiltonian and an L1 localization technique to generate the 1-D localized functions that constitute the Tucker tensor basis. Numerical results show that the resulting Tucker tensor basis exhibits exponential convergence in the ground-state energy with increasing Tucker rank. Further, the proposed tensor-structured algorithm demonstrated sub-quadratic scaling with system-size for both systems with and without a gap, and involving many thousands of atoms. This reduced-order scaling has also resulted in the proposed approach outperforming plane-wave DFT implementation for systems beyond 2000 electrons.



Author(s):  
Lijuan Meng ◽  
Jinlian Lu ◽  
Yujie Bai ◽  
Lili Liu ◽  
Tang Jingyi ◽  
...  

Understanding the fundamentals of chemical vapor deposition bilayer graphene growth is crucial for its synthesis. By employing density functional theory calculations and classical molecular dynamics simulations, we have investigated the...



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