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Electronic heat capacity was calculated for a mesoscopically disordered s-wave superconductor treated as a spatial ensemble of domains with a continuously varying superconducting properties. The domains are assumed to have sizes larger than…

Superconductivity · Physics 2009-11-07 A. M. Gabovich , A. I. Voitenko , Mai Suan Li , H. Szymczak , M. Pekala

We report on the strong anisotropy of the inter-band process of impact ionization in direct-gap cubic semiconductors with either weak or strong spin-orbit coupling at low effective temperatures of electron distribution $T$, and the…

Mesoscale and Nanoscale Physics · Physics 2021-12-16 A. N. Afanasiev , A. A. Greshnov , G. G. Zegrya

A material called LK-99, a modified-lead apatite crystal structure with the composition Pb$_{10-x}$Cu$_x$(PO$_4$)$_6$O ($0.9<x<1.1$), has been synthesized using the solid-state method. The material exhibits the Ohmic metal characteristic of…

Superconductivity · Physics 2023-08-14 Sukbae Lee , Jihoon Kim , Hyun-Tak Kim , Sungyeon Im , SooMin An , Keun Ho Auh

The half-Heusler compounds YPdBi and TbPdBi, while having similar band structure, exhibit different magnetic properties. YPdBi is a diamagnet, while TbPdBi shows antiferromagnetic order below 5.5 K. Both are superconductors with…

Superconductivity · Physics 2019-01-02 S. M. A. Radmanesh , C. Martin , Yanglin Zhu , X. Yin , H. Xiao , Z. Q. Mao , L. Spinu

We compute the thermodynamic phase diagram of seventeen elemental metals with hexagonal close-packed (hcp), face-centered cubic (fcc), and body-centered cubic (bcc) crystal structures using finite-temperature density functional theory.…

Materials Science · Physics 2026-04-15 S. Azadi , S. M. Vinko , A. Principi , T. D. Kuehne , M. S. Bahramy

The Casimir effect between metal surfaces has now been well-verified at the few-percent level experimentally. However, the temperature dependence has never been observed in the laboratory, since all experiments are conducted at room…

High Energy Physics - Theory · Physics 2014-01-28 K. A. Milton , Iver Brevik , Simen A. Ellingsen

A new metallic radical cation salt $\kappa$-(BETS)$_2$Co$_{0.13}$Mn$_{0.87}$[N(CN)$_2$]$_3$, where BETS is bis(ethylenedithio)tetraselenafulvalene, C$_{10}$S$_4$Se$_4$H$_8$, has been synthesized. In this salt, a part of Mn$^{2+}$ ions are…

The discovery of superconductivity at 200 K in the hydrogen sulfide system at large pressures [1] was a clear demonstration that hydrogen-rich materials can be high-temperature superconductors. The recent synthesis of LaH$_{10}$ with a…

We report on the determination of the electronic heat capacity of a slightly overdoped (x = 0.075) Ba(Fe1-xCox)2As2 single crystal with a Tc of 21.4 K. Our analysis of the temperature dependence of the superconducting-state specific heat…

Superconductivity · Physics 2015-05-14 F. Hardy , T. Wolf , R. A. Fisher , R. Eder , P. Schweiss , P. Adelmann , H. v. Loehneysen , C. Meingast

While using first-principles-based Boltzmann transport equation approach to predict the thermal conductivity of crystalline semiconductor materials has been a routine, the validity of the approach is seldom tested for high-temperature…

Mesoscale and Nanoscale Physics · Physics 2020-03-05 Xiaokun Gu , Shouhang Li , Hua Bao

Ultrafast laser excitation can induce fast increases of the electronic subsystem temperature. The subsequent electronic evolutions in terms of band structure and energy distribution can determine the change of several thermodynamic…

Materials Science · Physics 2015-03-25 Emile Bévillon , Jean-Philippe Colombier , Vanina Recoules , Razvan Stoian

The effects of cobalt incorporation in spherical heterostructured iron oxide nanocrystals (NCs) of sub-critical size have been explored by colloidal chemistry methods. Synchrotron X-ray total scattering methods suggest that cobalt (Co)…

We have studied NpPdSn by means of the heat capacity, electrical resistivity, Seebeck and Hall effect, $^{237}$Np M\"{o}ssbauer spectroscopy, and neutron diffraction measurements in the temperature range 2-300 K and under magnetic fields up…

Strongly Correlated Electrons · Physics 2018-07-11 K. Shrestha , D. Antonio , J-C. Griveau , K. Prokeš , P. Gaczyński , E. Colineau , R. Caciuffo , K. Gofryk

Temperature-dependent magnetization (M(T)) and specific heat (C_p(T)) measurements were carried out on single crystal Sm_{1.85}Ce_{0.15}CuO_{4-delta} (T_c = 16.5 K). The magnetic anisotropy in the static susceptibility, chi {equiv} M/H, is…

Superconductivity · Physics 2009-10-31 B. K. Cho , Jae Hoon Kim , Young Jin Kim , Beom-hoan O , J. S. Kim , G. R. Stewart

The temperature dependence of AC susceptibility (ACS) has been measured for a very high-quality plate-like slightly overdoped YBCO single crystal for different frequencies and AC magnetic field amplitudes. Frequency dependence of the ACS is…

Superconductivity · Physics 2021-06-01 M. Rakibul Hasan Sarkar , S. H. Naqib

Tuning the opto-electronic properties through alloying is essential for semiconductor technology. Currently, mostly isovalent and isostructural alloys are used (e.g., group-IV and III-V), but a vast and unexplored space of novel functional…

Materials Science · Physics 2014-07-02 Vladan Stevanovic , Andriy Zakutayev , Stephan Lany

In this paper we report on detailed temperature and magnetic field dependence of m agnetization of IV-VI semiconductor PbTe doped with mixed valence transition metal Cr$^{2+/3+}$. The material is studied solely by an integral…

Bound Magnetic Polarons (BMP) have been proposed to play an important role in doped wide band gap semiconductors. We report the experimental evidence supporting polaronic magnetism and the role of defects on it. Temperature variation of…

Materials Science · Physics 2021-10-26 Gyanti Prakash Moharana , Rahul Kothari , S. K. Singh , P. D. Babu , Harish Kumar Narayanan

Polycrystalline samples of LaNi2(Ge{1-x}P{x})2 (x = 0, 0.25, 0.50, 0.75, 1) were synthesized and their properties investigated by x-ray diffraction (XRD), heat capacity Cp, magnetic susceptibility chi, and electrical resistivity rho…

Superconductivity · Physics 2013-08-20 R. J. Goetsch , V. K. Anand , Abhishek Pandey , D. C. Johnston

The filled skutterudite compound SmOs_{4}Sb_{12} was prepared in single crystal form and characterized. The SmOs_{4}Sb_{12} crystals have the LaFe_{4}P_{12}-type structure with lattice parameter a = 9.3085 Angstroms. Specific heat…

Strongly Correlated Electrons · Physics 2009-11-10 W. M. Yuhasz , N. A. Frederick , P. -C. Ho , N. P. Butch , B. J. Taylor , T. A. Sayles , M. B. Maple , J. B. Betts , A. H. Lacerda , P. Rogl , G. Gieste
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