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相关论文: Structural peculiarities of plastically-deformed c…

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Some special features of magnetically deformed multi-electron atoms in the crustal region of strongly magnetized neutron stars (magnetars) are studied with the relativistic version of semi-classical Thomas-Fermi model. An analytical…

天体物理学 · 物理学 2007-05-23 Nandini Nag , Somenath Chakrabarty

Properties of nanoparticles have been studied within the framework of Ising model and the method of random-field interactions: the average magnetic moment and position of critical points of the magnetic and the concentration phase…

介观与纳米尺度物理 · 物理学 2014-02-21 Yury Kirienko , Leonid Afremov

A caged compound CeOs2Al10, crystallizing in the orthorhombic YbFe2Al10-type structure, undergoes a mysterious phase transition at T_0=29 K. We report the results of electron diffraction, magnetization, and magnetoresistance for single…

强关联电子 · 物理学 2015-05-19 Y. Muro , J. Kajino , K. Umeo , K. Nishimoto , R. Tamura , T. Takabatake

The Fe$_5$PB$_2$ compound offers tunable magnetic properties via the possibility of various combinations of substitutions on the Fe and P-sites. Here, we present a combined computational and experimental study of the magnetic properties of…

Fe5-xGeTe2 is a van der Waals material with one of the highest reported bulk Curie temperatures, $T_C$ ~ 310K. In this study, theoretical calculations and experiments are utilized to demonstrate that the magnetic ground state is highly…

材料科学 · 物理学 2020-08-20 Andrew F. May , Mao-Hua Du , Valentino R. Cooper , Michael A. McGuire

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

Effects of the Co substitution have been observed on the structural, magnetic and magneto-transport properties of Fe2-xCoxMnSi alloy. Curie temperature (TC) and saturation magnetization (MS) of these alloys increased linearly with the Co…

强关联电子 · 物理学 2015-12-01 Lakhan Bainsla , K. G. Suresh , M. Manivel Raja , A. K. Nigam

The nanostructure and the carbon distribution in a pearlitic steel processed by torsion under high pressure was investigated by three-dimensional atom probe. In the early stage of deformation (shear strain of 62), off-stoichiometry…

材料科学 · 物理学 2008-12-18 Xavier Sauvage , Yulia Ivanisenko

In the orthorhombic manganites o-RMnO3, where R is a heavy rare earth (R = Gd-Yb), the Mn3+ sublattice is known to undergo two magnetic transitions. The low temperature phase has an antiferromagnetic structure (collinear or elliptical),…

The cubic Fe2-xMnxO3 is an intriguing material that has recently been investigated for various applications, including lithium-ion battery anodes, catalysts, energy storage media, humidity sensors, and photocatalysts. Despite its wide range…

Quaternary CaO-MgO-Al2O3-SiO2 glasses are important constituents of the Earth's lower crust and mantle, and they also have important industrial applications such as in metallurgical processes, concrete production and emerging low-CO2 cement…

材料科学 · 物理学 2021-01-20 Kai Gong , V. Ongun Özçelik , Kengran Yang , Claire E. White

We report the synthesis of Y-substituted Mg-Zn ferrites using conventional standard ceramic technique. XRD patterns confirm the single phase cubic spinel structure up to x = 0.03 and appearance of a secondary phase of YFeO3for higher Y…

Effect of an internal chemical pressure on structural, optical, magnetic and electrical properties in Bi0.9RE0.1FeO3 Ceramics (RE =Gd3+,Tb3+,Dy3+)has been studied extensively. Some of the highlights are as follows; 1. Coexistence of…

材料科学 · 物理学 2012-06-26 T. Karthik , T. Durga Rao , A. Srinivas , Saket Asthana

In this paper we present detailed M\"ossbauer spectroscopy study of structural and magnetic properties of the undoped parent compound CaFe$_2$As$_2$ single crystal. By fitting the temperature dependence of the hyperfine magnetic field we…

超导电性 · 物理学 2011-06-10 Zhiwei Li , Xiaoming Ma , Hua Pang , Fashen Li

The energy spectrum, spectral density and phase diagrams have been obtained for two-sublattice hard-core boson model in frames of random phase approximation approach. Reconstruction of boson spectrum at the change of temperature, chemical…

量子气体 · 物理学 2013-07-09 I. V. Stasyuk , O. Vorobyov

In metallic nanoparticles, the cluster geometric structures control the particle's electronic band structure, polarizability, and catalytic properties. Analyzing the structural properties is a complex problem; the structure of an assembled…

材料科学 · 物理学 2022-10-12 Jiale Shi , Shanghui Huang , François Gygi , Jonathan K. Whitmer

The experimental studies of the paramagnetic-antiferromagnetic phase transition through M\"{o}ssbauer spectroscopy and measurements of temperature and field dependencies of magnetic susceptibility in the layered Cu$_{0.15}$Fe$_{0.85}$PS$_3$…

计算物理 · 物理学 2023-01-05 V. Pashchenko , O. Bludov , D. Baltrunas , K. Mazeika , S. Motria , K. Glukhov , Yu. Vysochanskii

Earlier, the magnetoelectric effect of chromium sesquioxide Cr_2O_3 has been determined experimentally as a function of temperature. One measures the electric field-induced magnetization on Cr_2O_3 crystals or the magnetic field-induced…

其他凝聚态物理 · 物理学 2011-09-07 Friedrich W. Hehl , Yuri N. Obukhov , Jean-Pierre Rivera , Hans Schmid

The monolayer of $\textrm{CrI}_3$ has been reported to exhibit the ferromagnetic order, with a Curie temperature of $45 K$ and off-plane easy axis, which has attracted much attention in the community of condensed matter physics. Using the…

强关联电子 · 物理学 2022-11-11 Bartosz Rzepkowski , Michał Kupczyński , Paweł Potasz , Arkadiusz Wójs

The magnetic properties of Ce in the $\alpha$ and $\gamma$ phase are calculated within the LDA+DMFT approach. The magnetic susceptibility in these two phases shows a similar behavior over a wide temperature range: a Curie-Weiss law at high…

强关联电子 · 物理学 2012-06-26 S. V. Streltsov , E. Gull , A. O. Shorikov , M. Troyer , V. I. Anisimov , P. Werner