Results 41 to 50 of about 878,894 (294)

Superconducting and charge-density wave instabilities in ultrasmall-radius carbon nanotubes

, 2004
We perform a detailed analysis of the band structure, phonon dispersion, and electron-phonon coupling of three types of small-radius carbon nanotubes (CNTs): (5,0), (6,0), and (5,5) with diameters 3.9, 4.7, and 6.8 \AA respectively.
Benedict, Benedict, Blase, Cobden, De Martino, Dubay, Efthimios Kaxiras, Egger, Egger, Eliashberg, Eugene Demler, Grest, Hertel, Ijima, Kociak, Langer, Li, McCumber, Mehl, Mintmire, Nygard, Ryan Barnett, Saito, Tang, Yin   +24 more
core   +1 more source

Electrostatic Field Formed by Charge Separation in Antiparallel Magnetic Reconnection

The Astrophysical Journal
The Hall effect resulting from the decoupled motions between ions and electrons is a critical factor in modeling collisionless magnetic reconnection. It leads to the production of charge separation in the reconnection plane, generating the electrostatic ...
Shihang Hu, Quanming Lu, Yukang Shu, San Lu, Kai Huang, Jia Nan   +5 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Fermi-surface reconstruction in a smectic phase of a high temperature superconductor

, 2011
It is shown that, in the presence of a moderately strong C_4 symmetry breaking (which could be produced either by lattice orthorhombicity or the presence of an electron nematic phase), a weak, period 4, unidirectional charge density wave ("charge stripe")
Kivelson, Steven A., Lee, Dung-Hai, Yao, Hong   +2 more
core   +1 more source

Study of Simulation Method of Time Evolution of Atomic and Molecular Systems by Quantum Electrodynamics [PDF]

, 2014
We discuss a method to follow step-by-step time evolution of atomic and molecular systems based on QED (Quantum Electrodynamics). Our strategy includes expanding the electron field operator by localized wavepackets to define creation and annihilation ...
Aharonovich, Bauer, Buller, Calzetta, Claudon, Drescher, Dyall, Furry, Grotch, Haroche, Ichikawa, Iwasa, Jackson, Joachain, Kimble, Krausz, Krekora, Krekora, Landau, Lifshitz, Lindgren, Loudon, McMurchie, Meystre, Mocken, Peskin, Rammer, Reiher, Sakurai, Salpeter, Senami, Senami, Senami, Tachibana, Tachibana, Tachibana, Tachibana, Tachibana, Umezawa, Weinberg, Weinberg, Weinberg, Yang   +42 more
core   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Charge density wave and superconducting dome in TiSe2 from electron-phonon interaction

, 2011
At low temperature TiSe2 undergoes a charge density wave instability. Superconductivity is stabilized either by pressure or by Cu intercalation. We show that the pressure phase diagram of TiSe2 is well described by first-principles calculations.
Calandra, Matteo, Mauri, Francesco
core   +3 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Charge Density Wave Ratchet

, 1999
We propose to operate a locally-gated charge density wave as an electron pump. Applying an oscillating gate potential with frequency $f$ causes equally spaced plateaux in the sliding charge density wave current separated by $\Delta I=2eNf,$ where $N$ is ...
Bauer, Gerrit E. W, Visscher, Mark I.
core   +2 more sources

Pseudopotential Calculations of Electronic Charge Densities in Seven Semiconductors [PDF]

Physical Review B, 1971
Electronic charge densities are calculated as a function of position in the unit cell for seven diamond and zinc-blende semiconductors using wave functions derived from pseudopotential band-structure calculations. Detailed plots of the charge density are presented in the (110) plane for each valence band of Ge, GaAs, and ZnSe and for the sum of the ...
Walter, John P., Cohen, Marvin L.
openaire   +2 more sources