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相关论文: Magnetostructural transition in Ce(Fe0.975Ga0.025)…

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The structural transitions, magnetic properties, and electronic structures of Co(Fe)-doped MnNiSi compounds are investigated by x-ray powder diffraction (XRD), differential scanning calorimetry (DSC), magnetic measurements, and…

材料科学 · 物理学 2015-04-17 Y. Li , Z. Y. Wei , E. K. Liu , G. D. Liu , S. G. Wang , W. H. Wang , G. H. Wu

Kinetics of polymorphous "gamma"-"alfa" transformation in Fe is studied numerically within a model taking into account both lattice and magnetic degrees of freedom, based on first-principle calculations of the total energy for different…

材料科学 · 物理学 2013-03-21 I. K. Razumov , Yu. N. Gornostyrev , M. I. Katsnelson

We report on the synthesis of single crystalline and polycrystalline samples of Ce$_{3-x}$Mg$_x$Co$_9$ solid solution ($0\leq x \lesssim 1.4$) and characterization of their structural and magnetic properties. The crystal structure remains…

We have investigated the crystal structure and magnetic properties for polycrystalline samples of LaMn1-xFexO3+y, in the whole range x=0.0 to x=1.0, prepared by solid state reaction in air. All samples show the ORT-2 orthorhombic structure…

强关联电子 · 物理学 2009-11-13 O. F. de Lima , J. A. H. Coaquira , R. L. de Almeida , L. B. de Carvalho , S. K. Malik

The structural and physical properties of two single-grain Au-Al-Gd 1/1 approximant crystals (ACs) with analyzed compositions Au73.67Al12.24Gd14.09 and Au74.67Al11.35Gd13.98 were thoroughly investigated. The two variants are iso-structural…

材料科学 · 物理学 2025-03-18 Farid Labib , Takanori Sugimoto , Hiroyuki Takakura , Asuka Ishikawa , Ryuji Tamura

To advance the use of thermally-activated magnetic materials in device applications it is necessary to examine their behaviour on the localised scale in operando conditions. Equi-atomic FeRh undergoes a magnetostructural transition from an…

We report the successful synthesis of the polycrystalline compounds CePd$_2$As$_{2-x}$P$_x$ ($0 \leq x \leq 2$) and their physical properties by measuring the transport, magnetic and thermodynamic behaviors as a function of temperature…

强关联电子 · 物理学 2013-12-25 T Shang , Y H Chen , W B Jiang , Y Chen , L Jiao , J L Zhang , Z F Weng , X Lu , H Q Yuan

We present results from a detailed experimental investigation of LaFeAsO, the parent material in the series of "FeAs" based oxypnictide superconductors. Upon cooling this material undergoes a tetragonal-orthorhombic crystallographic phase…

Two-dimensional (2D) magnetic materials have predominantly exhibited easy-axis or easy-plane anisotropy and display a high sensitivity to the underlying crystal structure and lattice symmetry. Recently, an in-plane anisotropic 2D…

The temperature dependence of the electronic structure of CeBi arising from two types of antiferromagnetic transitions based on optical conductivity ($\sigma(\omega)$) was observed. The $\sigma(\omega)$ spectrum continuously and…

强关联电子 · 物理学 2009-11-10 Shin-ichi Kimura , Mitsuru Okuno , Hideaki Kitazawa , Fumihiko Ishiyama , Osamu Sakai

First-principles based on density functional theory is used to study the phase stability, elastic, magnetic, and electronic properties of cubic (c)-Fe$_4$C. Our results show that c-Fe$_{4}$C has a ferromagnetic (FM) ground state structure…

材料科学 · 物理学 2014-08-26 Gul Rahman , Haseen Ullah Jan

We performed magnetization and electrical resistivity measurements under high pressures of up to 19 GPa for FeTe0.92. The compound shows an anomaly in magnetization and resistivity at atmospheric pressure due to a structural distortion…

We report the thermal expansion, critical behavior, magnetocaloric effect (MCE), and magnetoresistance ($MR$) on the polycrystalline Mn$_{1.4}$Fe$_{3.6}$Si$_{3}$ compound around the ferromagnetic transition. A large negative volume thermal…

强关联电子 · 物理学 2021-08-11 Vikram Singh , R. Nath

A comparative analysis of the properties of FeSe${}_{1-x}$Te${}_{x}$ crystals in the range of x values of about 0.4 and pure FeSe crystals is presented. We found that the anomaly in R (T) at the structural transition for the former differs…

超导电性 · 物理学 2021-12-09 Y. A. Ovchenkov , D. A. Chareev , D. E. Presnov , O. S. Volkova , A. N. Vasiliev

A detailed investigation of Ba$_2$MnGe$_2$O$_7$ was performed in its low-temperature magnetoelectric state combining neutron diffraction with magnetization measurements on single crystals. In the paramagnetic state at 10 K, polarized…

强关联电子 · 物理学 2023-03-07 A. Sazonov , H. Thoma , R. Dutta , M. Meven , A. Gukasov , R. Fittipaldi , V. Granata , T. Masuda , B. Náfrádi , V. Hutanu

Cubic CeZn shows a structural phase transition under pressure, and it modifies the ground state from an antiferromagnetic (AFM) state to a ferromagnetic (FM) state. To investigate how the FM state terminates at a quantum phase transition,…

强关联电子 · 物理学 2022-11-28 Hisashi Kotegawa , Toshiaki Uga , Hideki Tou , Eiichi Matsuoka , Hitoshi Sugawara

The compound FeMnP$_{0.50}$Si$_{0.50}$ has been studied by magnetic measurements, M\"ossbauer spectroscopy and electronic structure and total energy calculations. An unexpected high magnetic hyperfine field for Fe atoms located at the…

Thermal ($C_P$), magnetic ($M$ and $\chi_{ac}$) and transport ($\rho$) measurements on Ce$_{2}$Pd$_{2}$Sn are reported. High temperature properties are well described by the presence of two excited crystal field levels at $(65\pm 5)$K and…

强关联电子 · 物理学 2013-05-29 J. G. Sereni , M. Gomez-Berisso , A. Braghta , G. Schmerber , J. P. Kappler

We report on the specific heat studies performed on a new generation of CeRh$_2$As$_2$ single crystals. Superior quality of the samples and dedicated experimental protocol allowed us to observe an antiferromagnetic-like behavior in the…

超导电性 · 物理学 2024-03-01 Grzegorz Chajewski , Dariusz Kaczorowski

Using first-principles calculations, we demonstrate that an Fe monolayer can assume very different magnetic phases on hexagonal hcp (0001) and fcc (111) surfaces of 4d- and 5d-transition metals. Due to the substrates' d-band filling, the…

材料科学 · 物理学 2008-11-07 B. Hardrat , A. Al-Zubi , P. Ferriani , S. Blügel , G. Bihlmayer , S. Heinze