Results 31 to 40 of about 454,694 (225)

The infrared spectra of ABC-stacking tri- and tetra-layer graphenes studied by first-principles calculations

, 2010
The infrared absorption spectra of ABC-stacking tri- and tetra-layer graphenes are studied using the density functional theory. It is found that they exhibit very different characteristic peaks compared with those of AB-stacking ones, caused by the ...
San-Huang Ke, W. A. Harrison, Xiaowei Li, Yuehua Xu   +3 more
core   +1 more source

Polytypes of long-period stacking structures synchronized with chemical order in a dilute Mg-Zn-Y alloy

, 2011
A series of structural polytypes formed in an Mg-1at.%Zn-2at.%Y alloy has been identified, which are reasonably viewed as long-period stacking derivatives of the hcp Mg structure with alternate AB stacking of the close-packed atomic layers.
Abe, E., Itoi, T., Kawamura, Y., Ono, A., Yamasaki, M.   +4 more
core   +1 more source

Chlorinated Benzo[1,2‐b:4,5‐c′]dithiophene‐4,8‐dione Polymer Donor: A Small Atom Makes a Big Difference

Advanced Science, 2021
The position of a chlorine atom in a charge carrier of polymer solar cells (PSCs) is important to boost their photovoltaic performance. Herein, two chlorinated D‐A conjugated polymers PBBD‐Cl‐α and PBBD‐Cl‐β are synthesized based on two new building ...
Pengjie Chao, Hui Chen, Mingrui Pu, Yulin Zhu, Liang Han, Nan Zheng, Jiadong Zhou, Xiaoyong Chang, Daize Mo, Zengqi Xie, Hong Meng, Feng He   +11 more
doaj   +1 more source

Friedel oscillations responsible for stacking fault of adatoms: The case of Mg(0001) and Be(0001) [PDF]

, 2014
We perform a first-principles study of Mg adatom and adislands on the Mg(0001) surface, and Be adatom on Be(0001), to obtain further insights into the previously reported energetic preference of the fcc faulty stacking of Mg monomers on Mg(0001).
Aminpour, Maral, Ortigoza, Marisol Alcántara, Rahman, Talat S.   +2 more
core   +3 more sources

Stacking for machine learning redshifts applied to SDSS galaxies

, 2016
We present an analysis of a general machine learning technique called 'stacking' for the estimation of photometric redshifts. Stacking techniques can feed the photometric redshift estimate, as output by a base algorithm, back into the same algorithm as ...
Hoyle, Ben, Paech, Kerstin, Rau, Markus Michael, Seitz, Stella, Weller, Jochen, Zitlau, Roman   +5 more
core   +1 more source

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

FEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Anisotropic Dynamic Disorder of π‐Stacking and Static Disorder in Organic Electron Transporting Materials with Isomorphic Crystal Structures

Small Structures
In organic semiconductors, charge transport is strongly correlated with intermolecular π–π interactions and the dynamic disorder caused by solid‐state phonon vibrations.
Chae‐Won Lee, Uros Puc, Jeong Hyeon Lee, Na Young Cho, Jong Bum Lee, Yun‐Sang Lee, Jin Chul Kim, Woojin Yoon, Hoseop Yun, Seokhoon Jang, Youngu Lee, Jong H. Kim, Sang Kyu Kwak, Mojca Jazbinsek, O‐Pil Kwon   +14 more
doaj   +1 more source

Crystal structure of (μ-N-allylthiourea-κ2S:S)bis[μ-bis(diphenylphosphanyl)methane-κ2P:P′]bis[bromidocopper(I)] acetonitrile disolvate

Acta Crystallographica Section E: Crystallographic Communications, 2015
The reaction of cuprous bromide with a mixture of 1,1-bis(diphenylphosphanyl)methane (dppm: C25H22P2) and N-allylthiourea (ATU: C4H8N2S) in acetonitrile yielded the title solvated dinuclear complex, [Cu2Br2(C4H8N2S)(C25H22P2)2]·2C2H3N or [Cu2Br2(ATU ...
Mareeya Hemman, Chaveng Pakawatchai, Jaursup Boonmak, Sujittra Youngme, Saowanit Saithong   +4 more
doaj   +1 more source

Stacking sensitive topological phases in a bilayer Kane-Mele-Hubbard model at quarter filling

, 2019
Layered quasi two dimensional systems have garnered huge interest both in the advancement of technology and in understanding emergent physics such as unconventional superconductivity, topological phases. In particular, the study of topological properties
Lee, SungBin, Mishra, Archana
core   +1 more source

Entropy and biological systems: experimentally-investigated entropy-driven stacking of plant photosynthetic membranes [PDF]

, 2014
According to the Second Law of thermodynamics, an overall increase of entropy contributes to the driving force for any physicochemical process, but entropy has seldom been investigated in biological systems.
Chow, Wah Soon, Jia, Husen, Liggins, John R   +2 more
core   +2 more sources