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相关论文: What can one learn about Fe-Cr alloys using M\"oss…

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Heusler compounds have been intensively studied owing to the important technological advancements that they provide in the field of shape memory, thermomagnetic energy conversion and spintronics. Many of their intriguing properties are…

The effect of Fe substitution on Mn sites in the colossal magnetoresistive compounds La0.65Ca0.35Mn1-xFexO3 with 0.01<x<0.1 have been studied. A careful study in the magnetic properties has been carried out by the measurement of ac…

强关联电子 · 物理学 2010-07-13 Wiqar Hussain Shah , S. K. Hasanain

Non-linear ac magnetic susceptibility terms viz. quadratic, chi2, and cubic, chi3, were measured versus temperature and frequency for a series of the sigma-phase Fe(100-x)Mo(x) (47<x<53) compounds. Clear evidence was found that the ground…

强关联电子 · 物理学 2016-02-18 S. M. Dubiel

Heusler alloys have attracted interest in various fields of functional materials since their properties can quite easily be tuned by composition. Here, we have investigated the relatively new class of all-3d Heusler alloys in view of its…

材料科学 · 物理学 2023-05-17 Madhura Marathe , Heike C. Herper

Kinetics of phase decomposition accompanied by precipitation of sigma-phase in a Fe73.7Cr26.3 alloy isothermally annealed at 832 K was studied by means of M\"ossbauer spectroscopy. Two stage decomposition process has been revealed by three…

材料科学 · 物理学 2019-11-01 Stanisław M. Dubiel , Jan Żukrowski

Narrow-gap higher mobility semiconducting alloys In_{1-x}Mn_{x}Sb were synthesized in polycrystalline form and their magnetic and transport properties have been investigated. Ferromagnetic response in In_{0.98}Mn_{0.02}Sb was detected by…

The metallicity spread, or the metallicity trend along the evolutionary sequence of a globular cluster, is a rich source of information to help understand the cluster physics (e.g. multiple populations) and stellar physics (e.g. atomic…

太阳与恒星天体物理 · 物理学 2022-05-25 Martina Baratella , Deepthi S. Prabhu , Luiz A. Silva-Lima , Philippe Prugniel

It is shown that analysis of M\"{o}ssbaur spectra of a granulated medium, immersed into the epoxy resin without hardener, allows to study mechanical vibrations of granules. In our experiments, small particles of the potassium ferrocyanide…

软凝聚态物质 · 物理学 2020-01-22 R. N. Shakhmuratov , F. G. Vagizov

Sigma-phase intermetallic compound of Fe54Cr46 was investigated using DC and AC magnetic susceptibility techniques. A clear-cut evidence was found that the sample orders magnetically at Tc=23.5 K and its ground magnetic state is constituted…

材料科学 · 物理学 2015-05-26 S. M. Dubiel , M. I. Tsindlekht , I. Felner

A redistribution of Cr atoms related to a phase decomposition (PD) caused by an isothermal annealing at 415 C in a 15.15 at%Cr Fe-Cr alloy was studied in an ex-situ way by the conversion electrons M\"ossbauer spectroscopy. Analysis of the…

材料科学 · 物理学 2013-08-23 Stanislaw M. Dubiel , Jan Zukrowski

The Fe(1+x)Sb compound has been synthesized close to stoichiometry with x = 0.023(8). The compound was investigated by 57Fe M\"ossbauer spectroscopy in the temperature range 4.2 - 300 K. The antiferromagnetic ordering temperature was found…

强关联电子 · 物理学 2016-01-20 K. Komedera , A. K. Jasek , A. Blachowski , K. Ruebenbauer , A. Krzton-Maziopa

57Fe site Mossbauer Spectroscopy (MS) was used to investigate a dynamics of 57Fe atoms embedded into chromium lattice as impurities. From the Mossbauer spectra recorded in the temperature range of 80 to 350 K, a temperature dependence of…

材料科学 · 物理学 2015-05-13 S. M. Dubiel , J. Zukrowski , J. Cieslak

We present a systematic benchmark of MACE potentials for iron-nickel alloys, focusing on structural, elastic, magnetic, and finite-temperature properties relevant to phase stability. The reference dataset comprises spin-polarized PBE…

材料科学 · 物理学 2026-05-28 Kushal Ramakrishna , Mani Lokamani , Attila Cangi

We present a machine-learning guided approach to predict saturation magnetization (MS) and coercivity (HC) in Fe-rich soft magnetic alloys, particularly Fe-Si-B systems. ML models trained on experimental data reveals that increasing Si and…

We study the spin-crossover molecule Fe(phen)$_2$(NCS)$_2$ using density functional theory (DFT) plus dynamical mean-field theory, which allows access to observables not attainable with traditional quantum chemical or electronic structure…

材料科学 · 物理学 2015-06-30 Jia Chen , Andrew Millis , Chris Marianetti

Surface based geometries of microfabricated wires or patterned magnetic films can be used to magnetically trap and manipulate ultracold neutral atoms or Bose-Einstein condensates. We investigate the magnetic properties of such atom chips…

原子物理 · 物理学 2009-11-13 M. Volk , S. Whitlock , B. V. Hall , A. I. Sidorov

Concentration of Cr in the Fe-rich alpha-phase, x, resulted from a phase decomposition caused by an isothermal annealing at T = 415 and 450 C of a non-irradiated (NR) Fe-Cr14 EFDA sample and that of a He-ions irradiated (IR) one annealed at…

材料科学 · 物理学 2013-07-05 S. M. Dubiel , J. Zukrowski

We investigate the magnetic behavior and critical exponents of quaternary CoFeV$_{0.8}$Mn$_{0.2}$Si Heusler alloy to understand the interactions across the Curie temperature ($T_{\rm C}$). The Rietveld refinement of the x-ray diffraction…

材料科学 · 物理学 2023-10-04 Guru Dutt Gupt , P. D. Babu , R. S. Dhaka

A lattice spin-fermion model for diluted magnetic semiconductors (DMS) is investigated numerically, improving on previously used mean-field (MF) approximations. Curie temperatures are obtained varying the Mn-spin x and hole n densities, and…

强关联电子 · 物理学 2009-11-07 Gonzalo Alvarez , Matthias Mayr , Elbio Dagotto

Shubnikov-de Haas (SdH) oscillations and upper critical magnetic field ($H\_{c2}$) of the iron-based superconductor FeSe ($T\_c$ = 8.6 K) have been studied by tunnel diode oscillator-based measurements in magnetic fields of up to 55 T and…