Results 1 to 10 of about 1,844,634 (338)

P-T Phase Diagram of LuFe2O4 [PDF]

open access: yesCrystals, 2018
The high-pressure behavior of LuFe2O4 is characterized based on synchrotron X-ray diffraction and neutron diffraction, resistivity measurements, X-ray absorption spectroscopy and infrared spectroscopy studies. The results obtained enabled us to propose a
Maria Poienar   +12 more
doaj   +6 more sources

On the Definition of Phase Diagram

open access: yesCrystals, 2022
A phase diagram, which is understood as a graphical representation of the physical states of materials under varied temperature and pressure conditions, is one of the basic concepts employed in high-pressure research. Its general definition refers to the
Kamil Filip Dziubek
doaj   +2 more sources

Anomalous excitonic phase diagram in band-gap-tuned Ta2Ni(Se,S)5 [PDF]

open access: yesNature Communications, 2023
During a band-gap-tuned semimetal-to-semiconductor transition, Coulomb attraction between electrons and holes can cause spontaneously formed excitons near the zero-band-gap point, or the Lifshitz transition point.
Cheng Chen   +19 more
doaj   +2 more sources

Phase diagram for the quasi-binary thallium(I) selenide–bismuth(III) telluride system [PDF]

open access: yesScientific Reports
The phase diagram for the quasi-binary Tl2Se–Bi2Te3 system has been established based on the results of phase studies by differential thermal analysis (DTA) and X-ray diffraction (XRD).
I. Mucha, W. Gawel
doaj   +2 more sources

The Gd2O3 – GdSrFeO4 pseudo -binary phase diagram [PDF]

open access: yesHeliyon
The Gd2O3 – GdSrFeO4 pseudo-binary phase diagram is presented for the first time. The liquidus and eutectic temperatures, metatectic points of the Gd2O3 transformations in the Gd2O3 – GdSrFeO4 section were defined using the Schröder–Le Chatelier equation,
K.M. Kenges   +2 more
doaj   +2 more sources

Uncomputability of phase diagrams [PDF]

open access: yesNature Communications, 2021
AbstractThe phase diagram of a material is of central importance in describing the properties and behaviour of a condensed matter system. In this work, we prove that the task of determining the phase diagram of a many-body Hamiltonian is in general uncomputable, by explicitly constructing a continuous one-parameter family of Hamiltonians H(φ), where $$\
Bausch, Johannes   +2 more
openaire   +6 more sources

Constraining the QCD phase diagram [PDF]

open access: yesEPJ Web of Conferences, 2023
Lattice QCD and functional methods are making significant progress in constraining the QCD phase diagram. As an important milestone, the chiral phase transition with massless u, d-quarks at zero density is now understood to be of second order for all ...
Philipsen Owe
doaj   +1 more source

Thermodynamic description of the Al-Cu-Yb ternary system supported by first-principles calculations [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2016
Phase relationships of the ternary Al-Cu-Yb system have been assessed using a combination of CALPHAD method and first principles calculations. A self-consistent thermodynamic parameter was established based on the experimental and theoretical ...
Huang G., Liu L., Zhang L., Jin Z.
doaj   +1 more source

QCD phase diagram by holography

open access: yesPhysics Letters B, 2022
We explore the QCD phase diagram by constructing a holographic QCD model using the Einstein-Maxwell-Scalar system. The chiral transition is investigated by adding a probe scalar and the confinement transition is studied by adding a probe string into the ...
Yi Yang, Pei-Hung Yuan
doaj   +1 more source

Thermodynamic modeling of the Bi-M (M = Ti, Cr, V) systems [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2013
The Bi-M (M = Ti, Cr, V) systems have been critically reviewed and modeled by means of the CALPHAD technique. All the intermetallics (BiTi3, BiTi2, Bi9Ti8, Bi3Ti2 and Bi2Ti) were treated as stoichiometric compounds.
Cao Z.   +6 more
doaj   +1 more source

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