Results 71 to 80 of about 61,960 (294)
Aggregate, 2023 Stimulating and harnessing circularly polarized luminescence (CPL) is not only a sine qua non for fundamentally unveiling chirogenesis in physical chemistry, but also a pivotal prerequisite for implementation of such phenomenon in research fields ...
Jiaying Lin +11 more
doaj +1 more source
Amplification of Chirality at Solid Surfaces [PDF]
Origins of Life and Evolution of Biospheres, 2009 Symmetry-breaking phenomena in two-dimensional crystallization at surfaces are reviewed and the potential impact to chiral amplification in three-dimensional systems in connection with the origin of homochirality in the biomolecular world is discussed.
openaire +3 more sources
Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires
Advanced Functional Materials, EarlyView.Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar +11 more
wiley +1 more source
Surface States of the Topological Insulator Bi_{1-x}Sb_x
, 2008 We study the electronic surface states of the semiconducting alloy BiSb. Using a phenomenological tight binding model we show that the Fermi surface of the 111 surface states encloses an odd number of time reversal invariant momenta (TRIM) in the surface
C. L. Kane +4 more
core +1 more source
Bulk charges in eleven dimensions [PDF]
, 1997 Eleven dimensional supergravity has electric type currents arising from the Chern-Simon and anomaly terms in the action. However the bulk charge integrates to zero for asymptotically flat solutions with topological trivial spatial sections.
Hawking, S. W., Taylor-Robinson, M. M.
core +4 more sources
Heliyon, 2019 The chiral signal of the carvone air/liquid interface is probed by heterodyne-detected sum frequency generation (HD-SFG) without the electronic resonance. The chiral SFG spectra exhibit two distinguishable spectral signatures.
Yang Wang +5 more
doaj +1 more source
Drug‐Free Thrombolysis Mediated by Physically Activated Micro/Nanoparticles
Advanced Functional Materials, EarlyView.Overview of particle‐mediated thrombolytic effects (thermal, mechanical, and chemical) and their activating physical stimuli (light, ultrasound, and magnetic field) in drug‐free thrombolysis. ABSTRACT Thrombus‐associated disorders rank among the world's leading causes of death, with ischemic heart disease and stroke as the main contributors.
Pierre Sarfati +2 more
wiley +1 more source
Active fluids at circular boundaries: Swim pressure and anomalous droplet ripening
, 2018 We investigate the swim pressure exerted by non-chiral and chiral active particles on convex or concave circular boundaries. Active particles are modeled as non-interacting and non-aligning self-propelled Brownian particles.
Jamali, Tayeb, Naji, Ali
core +1 more source
Chiral surfaces self-assembling in one-component systems with isotropic interactions [PDF]
, 2012 We show that chiral symmetry can be broken spontaneously in one-component systems with isotropic interactions, i.e. many-particle systems having maximal a priori symmetry.
E. Edlund +6 more
core +2 more sources
AggregateThe synthesis of chiral unsubstituted poly(para‐phenylene) (PPP) chains has remained elusive for decades, with the production of high‐molecular‐weight PPP still inaccessible to date.
Qun Song +12 more
doaj +1 more source