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Related papers: Ca substituion instead of Sr in La$_{0.58}$Sr$_{0.…

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We have reported shell-model results for $^{47-58}$Ca isotopes in the $fp$, $fpg_{9/2}$ and $fpg_{9/2}d_{5/2}$ model spaces using realistic $NN$ interaction. We have also performed a systematic shell-model study using interactions derived…

Nuclear Theory · Physics 2020-05-06 Bharti Bhoy , Praveen C. Srivastava , Kazunari Kaneko

Oxide thermoelectrics are exciting due to their chemical and thermal stability at high temperatures. However, the efficacy of these materials are limited by poor figure of merit (zT). In this study, the role of Sr and Mn co-substitution on…

Materials Science · Physics 2021-07-23 Ashutosh Kumar

This study presents a method of estimating battery cell core and surface temperature using a thermal model coupled with electrical impedance measurement, rather than using direct surface temperature measurements. This is advantageous over…

Systems and Control · Computer Science 2015-04-06 Robert R. Richardson , David A. Howey

Dense and mesoporous 4% mol Yttria-stabilized zirconia thin films were deposited on amorphous silica substrates. The effects of the temperature on the mesostructure were analyzed, by applying different thermal treatments to the samples…

We studied the magnetoresistance (MR) of well-characterized samples of Co$_{1-x}$Fe$_x$Si at x=0.2, 0.4, and 0.65 at temperatures between 1.8 and 100~K and magnetic fields of 9~T. The quasilinear dependence of MR on the magnetic field at…

Strongly Correlated Electrons · Physics 2025-10-30 A. E. Petrova , S. Yu. Gavrilkin , V. A. Stepanov , S. S. Khasanov , Dirk Mensel , S. M. Stishov

We successfully synthesized new layered iron oxypnictide Sr2CrO2(FeAs)2 by solid-state-reaction techniques. This is the first report on the Fe-substituted Sr2Mn3As2O2-type oxypnictides to our knowledge. A pellet of stoichiometric mixtures…

This paper presents new results which may constitute a breakthrough in the effort to develop fuel cells truly suitable for use in cars and trucks. For decades, researchers have known that the alkaline fuel cell (AFC) is much cheaper to…

Chemical Physics · Physics 2007-05-23 Mirna Urquidi-Macdonald , Ayusman Sen , Patrick Grimes , Ashutosh Tewari , Varun Sambhy

Systematic P-NMR studies on LaFe(As_{1-x}P_x)(O_{1-y}F_y) with y=0.05 and 0.1 have revealed that the antiferromagnetic spin fluctuations (AFMSFs) at low energies are markedly enhanced around x=0.6 and 0.4, respectively, and as a result, Tc…

Superconductivity · Physics 2014-03-06 H. Mukuda , F. Engetsu , K. Yamamoto , K. T. Lai , M. Yashima , Y. Kitaoka , A. Takemori , S. Miyasaka , S. Tajima

Substitutions of the zirconium and tin ions along with the indium-niobium and iron-niobium complexes for titanium in the barium modified NBT solid solutions impact the formation of phases in the process of the solid state synthesis and the…

Materials Science · Physics 2015-08-11 V. M. Ishchuk , L. G. Gusakova , N. G. Kisel , D. V. Kuzenko , N. A. Spiridonov , V. L. Sobolev

Chromium substituted cobalt ferrite with grain size less than the single domain (approx. 70 nm) has been prepared by the sol-gel method. XRD analysis reveals that the samples crystallize to cubic symmetry with spacegroup number 227. Two…

Materials Science · Physics 2016-10-11 Sweety Supriya , Sunil Kumar , Manoranjan Kar

We report an inelastic neutron scattering study of single crystals of (Li$_{0.8}$Fe$_{0.2}$)ODFeSe. Temperature-dependent low-energy spin excitations are observed near $\mathbf{Q}=$ (0.5, 0.27, 0.5) and equivalent wave vectors symmetrically…

Superconductivity · Physics 2017-03-28 Mingwei Ma , Lichen Wang , Philippe Bourges , Yvan Sidis , Sergey Danilkin , Yuan Li

We report thermoelectric properties of Ir$_{1-x}$Rh$_x$Te$_2$ ($0 \leqslant x \leqslant 0.3$) alloy series where superconductivity at low temperatures emerges as the high-temperature structural transition ($T_s$) is suppressed. The…

The polycrystalline Bi1-xHoxFeO3 (x=0, 0.05, 0.1) compounds were synthesized by conventional solid-state route. Rietveld refinement reveals that all the compounds were stabilized in rhombohedral structure with R3c (IUCr No. 161) space…

Materials Science · Physics 2015-01-06 T. Durga Rao , T. Karthik , Adiraj Srinivas , Saket Asthana

We report thermoelectric (TE) properties of Sr and Mn co-substituted LaCoO3 system from room temperature to 700 K. Sr-substitutions at La and Mn at Co site in LaCoO3 improves the electrical conductivity ({\sigma}). Thermal conductivity…

Materials Science · Physics 2018-07-17 Ashutosh Kumara , D. Sivaprahsam , Ajay D Thakur

To face the higher levels of radiation due to the 10-fold increase in integrated luminosity during the High-Luminosity LHC, the CMS detector will replace the current Calorimeter Endcap (CE) using the High-Granularity Calorimeter (HGCAL)…

In Fe-based superconductors, electron doping is often realized by the substitution of transition-metal atoms for Fe. In order to investigate how the electronic structure of the parent compound is influenced by Zn substitution, which…

Lithium-ion batteries (LIBs) have become essential in modern energy storage; however, their performance is often limited by the stability and efficiency of their components, particularly the cathode and electrolyte. Transition metal layered…

Materials Science · Physics 2025-07-15 M. D. Hashan C. Peiris , Michael Woodcox , Diana Liepinya , Robert Shepard , Hao Liu , Manuel Smeu

Superconducting FeSe0.8Te0.2 thin films on SrTiO3, LaAlO3 and CaF2 substrates were electrochemically etched in an ionic liquid DEME-TFSI electrolyte with a gate bias of 5 V. Superconductivity at 38 K was commonly observed on all substrates…

Two-dimensional iron-chalcogenide intercalates display a remarkable correlation of the interlayer spacing with the enhancement of the superconducting critical temperature ($T_c$). In this work, synchrotron x-ray absorption ($XAS$, at Fe and…

We report results of high-resolution measurements of the \emph{c$^*$}-axis expansivity ($\alpha_{c^{*}}$) at the charge-ordering (CO) transition for the quasi-1D (TMTTF)$_{2}$X compounds with X = SbF$_6$ and Br and make a comparison with…

Strongly Correlated Electrons · Physics 2015-05-14 Mariano de Souza , Daniel Hofmann , Pascale Foury-Leylekian , Alec Moradpour , Jean-Paul Pouget , Michael Lang
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