Results 11 to 20 of about 882,221 (292)

Liquid Stars and Atomic Volume [PDF]

open access: yesNature, 1928
THE problem of the general state of matter at high temperature is so fundamental in stellar physics that I venture to pursue the discussion with Dr. Jeans (NATURE, Feb. 25, p. 278). I would first thank him for his reply to my letter, which, though I differ from it on a number of points, deals fairly with the questions raised.
openaire   +2 more sources

Segregation of P and S Impurities to A Σ9 Grain Boundary in Cu

open access: yesMetals, 2020
The segregation of P and S to grain boundaries (GBs) in fcc Cu has implications in diverse physical-chemical properties of the material and this can be of particular high relevance when the material is employed in high performance applications.
Cláudio M. Lousada, Pavel A. Korzhavyi
doaj   +1 more source

Visualization of the disordered structure of Fe-Ni Invar alloys by reverse monte carlo calculations

open access: yesFrontiers in Materials, 2022
Reverse Monte Carlo (RMC) calculation was performed to visualize the atomic arrangement in a disordered Fe55Ni45 alloy, which is classified as an intermediate structure between the non-crystalline glass and crystalline structures. The optimized structure
Yusuke Kubo   +8 more
doaj   +1 more source

Nuclear ground-state properties from mean-field calculations [PDF]

open access: yes, 2002
The volume and surface effects in the nuclear local energy density and the volume and surface components of the pairing interaction are discussed in the context of the mean-field, Hartree-Fock-Bogoliubov description of atomic nuclei.
Dobaczewski, J.   +2 more
core   +2 more sources

Study of dimensional dependencies of thermodynamic characteristics of nanoparticles

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2019
In the article some approaches to the theoretical description of the deviations of thermodynamic characteristics, such as the heat capacity and the Debye temperature for nanoparticles are considered. The standard Debye inference for the heat capacity of
V.M. Yurov   +3 more
doaj   +1 more source

Anomalous atomic volume of α-Pu [PDF]

open access: yesPhysical Review B, 1997
We have performed full charge-density calculations for the equilibrium atomic volumes of the {alpha}-phase light actinide metals using the local density approximation (LDA) and the generalized gradient approximation (GGA). The average deviation between the experimental and the GGA atomic radii is 1.3{percent}.
J. Kollár, L. Vitos, H. L. Skriver
openaire   +1 more source

Superconducting transition temperatures of the elements related to elastic constants [PDF]

open access: yes, 2004
For a given crystal structure, say body-centred-cubic, the many-body Hamiltonian in which nuclear and electron motions are to be treated from the outset on the same footing, has parameters, for the elements, which can be classified as (i) atomic mass M, (
Angilella, G. G. N.   +2 more
core   +1 more source

Atomic Stress State Inside fcc and bcc Random Alloys: A First-Principles Approach

open access: yesFrontiers in Materials, 2022
The stress state at an atomic level and its governing physics inside a random alloy are essential elements in developing a model for solid solution strengthening in random alloys, which is one of the primary strengthening mechanisms of high-entropy ...
Yoshinori Shiihara   +3 more
doaj   +1 more source

An optically pumped atomic clock based on a continuous slow cesium beam

open access: yesFrontiers in Physics, 2022
Herein, we report the scheme of an optically pumped atomic clock based on a cold cesium atomic beam source. We propose the laser system and physical mechanism of this atomic clock, wherein the atomic beam travels in an upper parabolic trajectory, thereby
Weibin Xie   +10 more
doaj   +1 more source

THICKNESS OF THE SURFACE LAYER OF ATOMIC-SMOOTH CRYSTALS

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019
A brief review of the physics of the surface layer of atomically smooth crystals is given. It already contains a fairly large number of practical applications in various fields of interdisciplinary areas.
V.M. Yurov
doaj   +1 more source

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