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In this work, we use the thermodynamically consistent and conserving self-energy embedding theory (SEET) to study the spectra of the prototypical undistorted cubic perovskites SrVO$_3$ and SrMnO$_3$. In the strongly correlated metallic…

强关联电子 · 物理学 2021-06-02 Chia-Nan Yeh , Sergei Iskakov , Dominika Zgid , Emanuel Gull

Experimental data obtained with the perovskite compounds Pr$_{0.55}$Sr$_{0.45}$MnO$_{3}$ show that the magnetization decreases with increasing temperature $T$ and undergoes a very sharp phase transition to the paramagnetic phase. The sharp…

材料科学 · 物理学 2024-01-12 Yethreb Essouda , Hung T. Diep , Mohamed Ellouze

Observations of neutron stars (NSs) by the LIGO-Virgo and NICER collaborations have provided reasonably precise measurements of their various macroscopic properties. In this paper, we employ a Bayesian framework to combine them and place…

高能天体物理现象 · 物理学 2021-05-26 Bhaskar Biswas , Prasanta Char , Rana Nandi , Sukanta Bose

In this study, we investigate the structural properties, chemical stability, and electronic, optical, and thermoelectric properties of $\mathrm{Sr_2PrSbO_6}$ using first-principles calculations based on Density Functional Theory (DFT). The…

材料科学 · 物理学 2025-10-22 Md. Mohiuddin , Alamgir Kabir

In this paper, we present the study of the structural, mechanical, magneto-electronic and thermodynamic properties of the perovskite KBeO$_3$. The calculations were performed by the full potential augmented plane wave method, implemented in…

材料科学 · 物理学 2021-01-20 M. Hamlat , K. Amara , K. Boudia , F. Khelfaoui , H. Boutaleb

We report a theoretical equation of state (EOS) table for boron across a wide range of temperatures (5.1$\times$10$^4$-5.2$\times$10$^8$ K) and densities (0.25-49 g/cm$^3$), and experimental shock Hugoniot data at unprecedented high…

Equation of state (EOS) for bcc tungsten at 300 K (or 3000 K) up to 1000 GPa (or 300 GPa) was predicted for the first time by solving the partition function via a direct integral approach (DIA) with ab initio calculations of the atoms'…

材料科学 · 物理学 2022-11-02 Yue-Yue Tian , Bo-Yuan Ning , X. -D. Xiang , Hui-Fen Zhang , Xi-Jing Ning

We critically examine nuclear matter and neutron matter equation of state (EoS) parameters by using best available terrestrial experimental results. The nuclear incompression modulus $K_{\infty}$ is re-examined in comparisons with RPA…

核理论 · 物理学 2019-09-04 H. Sagawa , S. Yoshida , Li-Gang Cao

The hard sphere system plays a basic role in condensed matter physics and related fields, and equation of state (EoS) is the ultimate solution to its thermodynamic properties (1-3). Dozens of EoSs have been proposed since van der Waals…

统计力学 · 物理学 2007-05-23 Hongqin Liu

Fe and Al are two of the most important rock-forming elements other than Mg, Si, and O. Their presence in the lower mantle's most abundant minerals, MgSiO_3 bridgmanite, MgSiO_3 post-perovskite and MgO periclase, alters their elastic…

地球物理 · 物理学 2015-12-22 Shuai Zhang , Sanne Cottaar , Tao Liu , Stephen Stackhouse , Burkhard Militzer

Physics of the Equation of State (EoS) for proto-neutron star (PNS) concerns properties of neutron rich matter at finite temperature over wide range of densities. In this contribution we discuss the structure of PNS inner crust in a…

高能天体物理现象 · 物理学 2012-02-28 Gang Shen

A quantitative knowledge of the nuclear Equation of State (EoS) requires an accurate estimation of the uncertainties on the EoS parameters and their mutual correlations. Such correlations are empirically observed in a large set of EoS…

核理论 · 物理学 2019-02-27 J. Margueron , F. Gulminelli

Polycrystalline rhodium(IV) oxide perovskite SrRhO3 was obtained by high-pressure synthesis techniques, followed by measurements of the magnetic susceptibility, electrical resistivity, and specific heat. The title compound has five…

超导电性 · 物理学 2009-11-07 K. Yamaura , E. Takayama-Muromachi

An Equation of State (\textit{EoS}) closes the set of fluid equations. Although an ideal EoS with a constant \textit{adiabatic index} $\Gamma$ is the preferred choice due to its simplistic implementation, many astrophysical fluid…

天体物理仪器与方法 · 物理学 2015-08-19 B. Vaidya , A. Mignone , G. Bodo , S. Massaglia

In order to verify and validate the newly developed thermoelectron equation of state (EOS) model that is based on the Wu-Jing (W-J) EOS, calculations of shock compression behavior have been made on five different porous metals-iron, copper,…

材料科学 · 物理学 2012-03-06 H. Y. Geng , Q. Wu , H. Tan , L. Cai , F. Jing

We present microscopic Molecular Dynamics simulations including the efficient Ewald sum procedure to study warm and dense stellar plasmas consisting of finite-size ion charges immerse in a relativistic neutralizing electron gas. For…

高能天体物理现象 · 物理学 2024-02-19 D. Barba-González , C. Albertus , M. Ángeles Pérez-García

We investigate the Equation of State (EOS) of classical systems having 300 and 512 particles confined in a box with periodic boundary conditions. We show that such a system, independently on the number of particles investigated, has a…

核理论 · 物理学 2009-10-28 P. Finocchiaro , M. Belkacem , T. Kubo , V. Latora , A. Bonasera

The transition density $\rho_{t}$ and pressure $P_{t}$ at the inner edge separating the liquid core from the solid crust of neutron stars are systematically studied using a modified Gogny (MDI) and 47 popular Skyrme interactions within well…

太阳与恒星天体物理 · 物理学 2010-01-15 Jun Xu , Lie-Wen Chen , Bao-An Li , Hong-Ru Ma

In this work we present a newly constructed equation of state (EoS) --applicable to stellar core collapse and neutron star mergers--, including the entire baryon octet. Our EoS is compatible with the main constraints from nuclear physics…

核理论 · 物理学 2017-10-18 Miguel Marques , Micaela Oertel , Matthias Hempel , Jérôme Novak

The equation of state (EoS) $P = P (\rho, ...)$ -- pressure as a function of density and other thermodynamical quantities -- is what generates particularities of mass--radius distribution $M (R)$ for super--dense compact stellar bodies, the…

高能天体物理现象 · 物理学 2016-03-14 E. P. Tito , V. I. Pavlov