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相关论文: Multiphased alkali halide mixed crystals: The cond…

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Ac electrical measurements have been reported for alkali halide mixed crystals that were melt grown from NaCl, KCl and KBr starting materials. They showed a nonlinear variation of all the electrical parameters with the bulk composition.…

材料科学 · 物理学 2017-05-03 Vassiliki Katsika-Tsigourakou

AC and DC electrical measurements between 273 and 800 K were used to characterize the electrical conductivity of Al_2 O_3:Mg single crystals containing [Mg]^{0} center. At low fields contacts are blocking. At high fields, electrical current…

软凝聚态物质 · 物理学 2009-10-31 M. Tardío , R. Ramírez , R. González , Y. Chen , M. R. Kokta

DC and AC electrical measurements were performed to investigate the electrical conductivity of alpha-Al2O3:Mg samples with different concentrations of [Mg]^0 centers .The concentration of [Mg]^0 centers was monitored by the…

材料科学 · 物理学 2016-08-31 M. Tardio , R. Ramirez , R. Gonzalez , Y. Chen , M. R. Kokta

The phenomenally large enhancement in conductivity observed when Li-doped MgO crystals are oxidized at elevated temperatures was investigated by dc and ac electrical measurements in the temperature interval 250-673 K. The concentration of…

材料科学 · 物理学 2009-11-07 M. M. Tardio , R. Ramirez , R. Gonzalez , Y. Chen

The thermal conductivity of nanoparticles colloidal suspensions, submitted to the action of an external force field has been calculated by non equilibrium molecular dynamics simulations. For driven forces in the radio frequency and…

介观与纳米尺度物理 · 物理学 2008-01-25 Clément Le Goff , Philippe Ben-Abdallah , Gilberto Domingues , Ahmed Ould El Moctar

We report single crystal growth and physical properties characterization of YbFe$_2$Al$_{10}$ compounds. The measurements of resistivity, magnetic susceptibility, and specific heat show different behaviors from previous studies on…

强关联电子 · 物理学 2017-06-21 J. L. Lv , R. Y. Chen , H. P. Wang , J. L. Luo , N. L. Wang

KMgBi single crystals are grown by using the Bi flux successfully. KMgBi shows semiconducting behavior with a metal-semiconductor transition at high temperature region and a resistivity plateau at low temperature region, suggesting KMgBi…

材料科学 · 物理学 2017-02-01 Xiao Zhang , Shanshan Sun , Hechang Lei

A unique bistable transition has been identified in granular/colloidal gel-composites, resulting from shear-induced phase separation of the gel phase into dense blobs. In energy applications, it is critical to understand how this transition…

(Bi1-xSbx)2Te3 (x=0.60, 0.65, 0.68, 0.70, 0.75 and 0.80) mixed crystals have been synthesized by solid state reaction. In depth structural, thermal, transport and electronic properties are reported. Defect and disorder play a crucial role…

应用物理 · 物理学 2021-08-03 K. Malik , S. Mahakal , Diptasikha Das , Aritra Banerjee , S. Chatterjee , Anusree Das

Electrolysis was carried out on fused mixtures of MgCl2, NaCl, KCl and MgB2O4 under an Ar flow at 600C. Electrical resistivity measurements for the grown deposits show an onset of superconducting transition at 37 K in the absence of applied…

超导电性 · 物理学 2009-11-07 Kenji Yoshii , Hideki Abe

We report the measurements of thermopower, electrical resistivity and thermal conductivity in a complex cobalt oxide Li$_{0.48}$Na$_{0.35}$CoO$_{2}$, whose crystal structure can be viewed as an intergrowth of the O3 phase of…

材料科学 · 物理学 2007-05-23 Zhi Ren , Jingqin Shen , Shuai Jiang , Xiaoyang Chen , Chunmu Feng , Zhu'an Xu , Guanghan Cao

In this Rapid Communication we demonstrate the applicability of an augmented Gibbs ensemble Monte Carlo approach for the phase behavior determination of model colloidal systems with short-ranged depletion attraction and long-ranged…

软凝聚态物质 · 物理学 2007-05-23 P. Charbonneau , D. R. Reichman

The hcp-fcc transformation induced in cobalt powder by ball milling at room temperature was studied using the excess Gibbs free energy for the metals, in nanometric form, to calculate the activation energy that the atoms need for the phase…

材料科学 · 物理学 2007-05-23 J. C. de Lima , V. H. F. dos Santos , T. A. Grandi , R. S. de Biasi

The behaviors of resistance, magnetoresistance (up to 5 T), and Hall electromotive force (EMF) with varying temperature (from 10 to 300 K) and measuring current (from 10 mkA to 10 mA) are studied for the Si sample with CrSi2…

介观与纳米尺度物理 · 物理学 2014-10-14 V. V. Andrievskii , Yu. F. Komnik , I. B. Berkutov , I. G. Mirzoiev , N. G. Galkin , D. L. Goroshko

The ab-plane thermal conductivity $\kappa$ of single-crystalline hexagonal MgB_2 has been measured as a function of magnetic field H with orientations both parallel and perpendicular to the c-axis and at temperatures between 0.5 and 300 K.…

超导电性 · 物理学 2009-11-07 A. V. Sologubenko , J. Jun , S. M. Kazakov , J. Karpinski , H. R. Ott

Twist-bend (Ntb) and ferroelectric (NF) nematic liquid crystals exhibit several novel effects and new physical properties. The question of what happens in binary mixtures is interesting as a matter of curiosity and pure science. Here, we…

软凝聚态物质 · 物理学 2023-08-07 Abinash Barthakur , Jakub Karcz , Przemyslaw Kula , Surajit Dhara

The review considers bulk MgB2-based materials in terms of their structure, superconducting and mechanical properties. Superconducting transition temperatures of 34.5-39.4 K, critical current densities of 1.8-1.0 x E6 A/sq.cm in self field…

超导电性 · 物理学 2009-12-25 T. A. Prikhna

The preceding paper (Nissen 2017) shows multiphasic profiles, straight lines separated by discontinuous transitions, for the ion activities of NaCl and KCl at 15, 25, 35 and 45oC based on very precise tabular data of Lee et al. (2002). In…

生物物理 · 物理学 2017-12-20 Per Nissen

We investigate the phase behaviour of mixtures of two populations of colloidal particles dispersed in a binary solvent system near its critical composition. The surfaces of particles are chemically modified to elicit a specific solvent…

软凝聚态物质 · 物理学 2026-02-16 T. E. Kodger , N. Farahmand Bafi , M. Labbé-Laurent , E. Steijlen , A. Maciolek , P. Schall

Barium hydrides are of interest for their potential in both ionic conductivity and superconductivity. Recently, a superconducting hydride BaH$_{12}$ containing H$_2$ and H${_3}^{-1}$ molecular units was experimentally reported with a…

超导电性 · 物理学 2025-10-07 Yue-Wen Fang , Ion Errea
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