Results 11 to 20 of about 1,057,418 (265)

The quasi-low temperature behaviour of specific heat [PDF]

open access: yesRoyal Society Open Science, 2019
A new mathematical approach to condensed matter physics, based on the finite temperature field theory, was recently proposed. The field theory is a scale-free formalism; thus, it denies absolute values of thermodynamic temperature and uses dimensionless ...
Yuri Vladimirovich Gusev
doaj   +2 more sources

Numerical Interchain Mean-Field Theory for the Specific Heat of the Bimetallic Ferromagnetically Coupled Chain Compound MnNi(NO2)4(en)2 (en = Ethylenediamine) [PDF]

open access: yesMolecules, 2022
We present a detailed study of the field-dependent specific heat of the bimetallic ferromagnetically coupled chain compound MnNi(NO2)4(en)2, en = ethylenediamine.
Andreas Honecker   +5 more
doaj   +2 more sources

Specific heat of Sr4Ru3O10 [PDF]

open access: yesSolid State Communications, 2004
We have measured the specific heat of single crystals of the triple-layer Ruddlesden-Popper material, Sr4Ru3O10, grown both in an image furnace and by flux-growth. The flux grown sample has a sharp mean-field-like anomaly at the onset of magnetic order, Tc = 102 K, but a much broader anomaly, indicative of residual heterogeneity, is observed for the ...
Lin, X. N.   +3 more
openaire   +2 more sources

Specific heat of Ca0.33Na0.67Fe2As2 [PDF]

open access: yesSolid State Communications, 2014
The specific heat of single crystal hole-doped Ca0.33Na0.67Fe2As2, Tc(onset)=33.7 K, was measured from 0.4 to 40 K. The discontinuity in the specific heat at Tc, deltaC, divided by Tc is 105 +- 5 mJ/molK2, consistent with values found previously for hole-doped Ba0.6K0.4Fe2As2 and somewhat above the general trend for deltaC/Tc vs Tc for the iron based ...
Kim, J. S.   +3 more
openaire   +2 more sources

Specific heat of a ferromagnetic film [PDF]

open access: yesPhysical Review E, 1996
We analyze the specific heat for the $O(N)$ vector model on a $d$-dimensional film geometry of thickness $L$ using ``environmentally friendly'' renormalization. We consider periodic, Dirichlet and antiperiodic boundary conditions, deriving expressions for the specific heat and an effective specific heat exponent, $α\ef$. In the case of $d=3$, for $N=1$,
Freire, F.   +2 more
openaire   +3 more sources

Kinks in the Electronic Specific Heat [PDF]

open access: yesPhysical Review Letters, 2009
We find that the heat capacity of a strongly correlated metal presents striking changes with respect to Landau Fermi liquid theory. In contrast with normal metals, where the electronic specific heat is linear at low temperature (with a T^3 term as a leading correction), a dynamical mean-field study of the correlated Hubbard model reveals a clear kink ...
A. Toschi   +3 more
openaire   +5 more sources

Temperature-dependent thermal properties of spark plasma sintered alumina [PDF]

open access: yesScience of Sintering, 2017
In this work, we report temperature-dependent thermal properties of alumina powder and bulk alumina consolidated by spark plasma sintering method. The properties were measured between room temperature and 250ºC using a thermal constants analyzer.
Saheb Nouari, Hayat Umer
doaj   +1 more source

Magnetization, Band Gap and Specific Heat of Pure and Ion Doped MnFe2O4 Nanoparticles

open access: yesMagnetochemistry, 2023
We have studied the magnetic properties of ion doped MnFe2O4 nanoparticles with the help of a modified Heisenberg model and Green’s function theory taking into account all correlation functions.
I. N. Apostolova   +2 more
doaj   +1 more source

FIRE CHARACTERISTICS FOR ADVANCED MODELLING OF FIRES [PDF]

open access: yesCivil Engineering Journal, 2016
This paper summarizes the material and fire properties of solid flammable/combustible materials /substances /products, which are used as inputs for the computer numerical fire models. At the same time it gives the test standards for their determination.
Otto Dvořák
doaj   +1 more source

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