Results 21 to 30 of about 538,139 (255)

A Phase Space Diagram for Gravity

open access: yesEntropy, 2012
In modified theories of gravity including a critical acceleration scale <em>a</em><sub>0</sub>, a critical length scale<em> r<sub>M</sub> = (GM/a</em><sub>0</sub><em>)<sup>1/2< ...
Xavier Hernandez
doaj   +1 more source

Pressure–Temperature Phase Diagram of Multiferroic TbFe2.46Ga0.54(BO3)4

open access: yesMagnetochemistry, 2022
The pressure–temperature phase diagram of the multiferroic TbFe2.46Ga0.54(BO3)4 was studied for hydrostatic pressures up to 7 GPa and simultaneously with temperatures up to 400 K by the Raman spectroscopy technique.
Alexander Krylov   +6 more
doaj   +1 more source

Phase diagram of Bi2Sr2CaCu2O8+δ revisited

open access: yesNature Communications, 2018
The doping level of cuprate superconductors is usually difficult to determine. Here, Drozdov et al. report spectroscopic studies of in-situ modified Bi2Sr2CaCu2O8+δ , exploring not only the superconducting dome but also the previously inaccessible, non ...
I. K. Drozdov   +8 more
doaj   +1 more source

Phase diagram of an extended parafermion chain

open access: yesSciPost Physics Core, 2022
We study the phase diagram of an extended parafermion chain, which, in addition to terms coupling parafermions on neighbouring sites, also possesses terms involving four sites.
Jurriaan Wouters, Fabian Hassler, Hosho Katsura, Dirk Schuricht
doaj   +1 more source

Achieving broadband near-infrared luminescence in Cr3+-Activated Y2Mg2Al2Si2O12 phosphors via multi-site occupancy

open access: yesAdvanced Powder Materials
Cr3+-activated near-infrared (NIR) phosphors are key for NIR phosphor-converted light emitting diodes (NIR pc-LED). While, the site occupancy of Cr3+ is one of the debates that have plagued researchers.
Gui-Hua Li   +6 more
doaj   +1 more source

Phase diagram of dilute cosmic matter

open access: yesEPJ Web of Conferences, 2011
Enhancement of nuclear pasta formation due to multi-nucleus simultaneous collision is presented based on time-dependent density functional calculations with periodic boundary condition.
Iwata Yoritaka
doaj   +1 more source

The extremely efficient and luminous-thermal-stable red phosphor based on new layered and rigid phosphate

open access: yesMaterials Today Advances
Developing idea red phosphors with high quantum efficiency and excellent fluorescent thermal stability has special significance for both lighting and display devices but is still challenging.
Rong-Rong Wang   +4 more
doaj   +1 more source

Charting the phase diagram of QCD3

open access: yesJournal of High Energy Physics, 2019
We study the phase diagram of SU (N) gauge theory in three space-time dimensions with a Chern-Simons term at level k, coupled to two sets of fundamental fermions with masses m 1 and m 2, respectively.
Riccardo Argurio   +3 more
doaj   +1 more source

x-T phase diagram of La-substituted BiFeO3-PbTiO3

open access: yesAIP Advances, 2011
Single-phase polycrystalline powders of 0.5(Bi1-xLax)FeO3-0.5PbTiO3 solid-solution were synthesized for x ≤ 0.3 using solid-state reaction method. The mixed crystals exhibit a tetragonal structure at ambient and the c/a ratio decreases with x.
K. K. Mishra   +3 more
doaj   +1 more source

Phase Diagram of a Strained Ferroelectric Nanowire

open access: yesCrystals, 2022
Ferroelectric materials manifest unique dielectric, ferroelastic, and piezoelectric properties. A targeted design of ferroelectrics at the nanoscale is not only of fundamental appeal but holds the highest potential for applications.
Maksim A. Pavlenko   +9 more
doaj   +1 more source

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