Results 91 to 100 of about 1,254,804 (384)

Analysis of Nutrient Compositions in Five Hybrid Sea Buckthorn Varieties Berries

open access: yesShipin gongye ke-ji, 2022
In order to comprehensively develop the biological resources of sea buckthorn, five hybrid sea buckthorn berries including Zaciyou 1, Zaciyou 2, Zaciyou 10, Zaciyou 12, and Zaciyou 54 were used as test materials to compare and analyze.
Sufen GE   +5 more
doaj   +1 more source

Non-Abelian Berry Phase, Instantons and N=(0,4) Supersymmetry

open access: yes, 2010
In supersymmetric quantum mechanics, the non-Abelian Berry phase is known to obey certain differential equations. Here we study N=(0,4) systems and show that the non-Abelian Berry connection over R^{4n} satisfies a generalization of the self-dual Yang ...
Laia, João N.
core   +1 more source

Fermi Surface Nesting and Anomalous Hall Effect in Magnetically Frustrated Mn2PdIn

open access: yesAdvanced Functional Materials, EarlyView.
Mn2PdIn, a frustrated inverse Heusler alloy, showing electronic‐structure driven anomalous Hall effect with Weyl crossings, Fermi‐surface nesting and near‐zero magnetization ideal for low‐magnetization spintronics. Abstract Noncollinear magnets with near‐zero net magnetization and nontrivial bulk electronic topology hold significant promise for ...
Afsar Ahmed   +7 more
wiley   +1 more source

Grape berry flavonoids: a review of their biochemical responses to high and extreme high temperatures

open access: yesJournal of Experimental Botany, 2018
Climate change scenarios predict an increase in average temperatures and in the frequency, intensity, and length of extreme temperature events in many wine regions around the world.
J. Gouot   +4 more
semanticscholar   +1 more source

Geometric phases of d-wave vortices in a model of lattice fermions

open access: yes, 2012
We study the local and topological features of Berry phases associated with the adiabatic transport of vortices in a d-wave superconductor of lattice fermions.
Seidel, Alexander   +2 more
core   +1 more source

Dynamic Control of Synaptic Plasticity by Competing Ferroelectric and Trap‐Assisted Switching in IGZO Transistors with Al2O3/HfO2 Dielectrics

open access: yesAdvanced Functional Materials, EarlyView.
A frequency‐tunable ferroelectric synaptic transistor based on a buried‐gate InGaZnO channel and Al2O3/HfO2 dielectric stack exhibits linear and reversible weight updates using single‐polarity pulses. By switching between ferroelectric and trap‐assisted modes depending on input frequency, the device simplifies neuromorphic circuit design and achieves ...
Ojun Kwon   +8 more
wiley   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha   +18 more
wiley   +1 more source

An on/off Berry phase switch in circular graphene resonators [PDF]

open access: yesScience, 2017
Flicking the Berry phase switch When an electron completes a cycle around the Dirac point (a particular location in graphene's electronic structure), the phase of its wave function changes by π. This so-called Berry phase is tricky to observe directly in
F. Ghahari   +12 more
semanticscholar   +1 more source

Berry's Phase

open access: yes, 2009
Berry's phase, entry in the Compendium of Quantum Physics: Concepts, Experiments, History and Philosophy, ed. F. Weinert, K. Hentschel, D. Greenberger and B.
openaire   +2 more sources

Berry Phase and Pseudospin Winding Number in Bilayer Graphene

open access: yes, 2011
Ever since the novel quantum Hall effect in bilayer graphene was discovered, and explained by a Berry phase of 2pi [K. S. Novoselov et al., "Unconventional quantum Hall effect and Berry's phase of 2pi in bilayer graphene", Nature Phys. 2, 177 (2006)], it
Marzari, Nicola, Park, Cheol-Hwan
core   +1 more source

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