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Magnetically pure spinel compound ${\rm LiV_2O_4}$ is a rare $d$-electron heavy fermion. Measurements on single crystals are needed to clarify the mechanism for the heavy fermion behavior in the pure material. In addition, it is known that…

强关联电子 · 物理学 2010-11-17 S. Das , X. Zong , A. Niazi , A. Ellern , J. Q. Yan , D. C. Johnston

A new disordered atom configuration in Fe2CrGa alloy has been created by ball-milling method. This leads to a significant enhancement of the magnetic moment up to 3.2~3.9 {\mu}B and an increase of Curie temperature by about 200 K, compared…

材料科学 · 物理学 2013-10-21 H. G. Zhang , C. Z. Zhang , W. Zhu , E. K. Liu , W. H. Wang , H. W. Zhang , J. L. Cheng , H. Z. Luo , G. H. Wu

Heat capacity experiments, crystal structure determination and transmission electron microscopy have been carried out on U3Cu3Sn4 single-crystals. U3Cu3Sn4 was confirmed to be a heavy-fermion antiferromagnet (TN=13(1) K) with a low…

强关联电子 · 物理学 2009-10-31 L. Shlyk , P. Estrela , J. C. Waerenborgh , L. E. De Long , A. de Visser , D. P. Rojas , F. Gandra , M. Almeida

We performed first-principles calculations at finite temperatures to investigate the temperature dependence of the magnetic properties, such as exchange stiffness constants and Curie temperatures, of Co2MnZ (Z= Si, Al) assuming L21 and B2…

材料科学 · 物理学 2025-07-30 Shogo Yamashita , Akimasa Sakuma , Mikihiko Oogane

Alloys of hexagonal $\delta$-phase UZr$_2$ have been synthesized and studied by means of heat capacity, magnetic susceptibility, magnetization, electrical resistivity, magnetoresistance, thermoelectric power, thermal conductivity…

ErAl$_3$ can form in either a trigonal ($\alpha$) or cubic ($\beta$) polymorph and this paper investigates the physical properties of these polymorphs through characterizations of single crystals grown in an aluminum flux. We demonstrate…

强关联电子 · 物理学 2025-07-15 Karolina Gornicka , Brenden R. Ortiz , Andrew D. Christianson , Andrew F. May

Neutron and x-ray diffraction measurements are presented for powders and single crystals of CaCo{1.86}As2. The crystal structure is a collapsed-tetragonal ThCr2Si2-type structure as previously reported, but with 7(1)% vacancies on the Co…

Single crystal of CeAl has been grown by flux method using Ce-Al self-flux. Several needle like single crystals were obtained and the length of the needle corresponds to the [001] crystallographic direction. Powder x-ray diffraction…

强关联电子 · 物理学 2015-06-22 Pranab Kumar Das , A. Thamizhavel

We have synthesized a nominal composition of Ni50Mn30Sn20 alloy using arc melting technique. Rietveld refinement confirms the austenite L21 structure in Fm-3m space group. Electrical resistivity has been found to clearly exhibiting two…

强关联电子 · 物理学 2015-11-06 Ramesh Chandra Bhatt , R. S. Meena , H. Kishan , V. P. S. Awana , S. K. Agarwal

A very fundamental property of both weakly and strongly interacting materials is the nature of its magnetic response. In this work we detail the growth of crystals of the quasicrystal approximant Fe$_4$Al$_{13}$ with an Al flux solvent…

Two-dimensional (2D) van der Waals (vdWs) materials have gathered a lot of attention recently. However, the majority of these materials have Curie temperatures that are well below room temperature, making it challenging to incorporate them…

We report on a ternary intermetallic compound, "YMn2Zn20", comprising a pyrochlore lattice made of Mn atoms. A series of In-doped single crystals undergo no magnetic long-range order down to 0.4 K, in spite of the fact that the Mn atom…

强关联电子 · 物理学 2015-05-19 Yoshihiko Okamoto , Takeshi Shimizu , Jun-ichi Yamaura , Yoko Kiuchi , Zenji Hiroi

Polycrystalline samples of four intermetallic compounds: MV$_2$Al$_{20}$ (M = Sc, Y, La, and Lu) were synthesized using an arc-melting technique. The crystal structures were analyzed by means of powder x-ray diffraction and Rietveld…

A new series of cubic double perovskites Ba$_2R_{2/3}$TeO$_6$ ($R$ = Y, La, Pr, Nd, Sm-Lu) was synthesized via solid state reaction. The $R^{3+}$ and Te$^{6+}$ ions are ordered on alternating octahedral sites, with the rare earth sites 2/3…

材料科学 · 物理学 2019-03-14 Tai Kong , Robert J. Cava

The electronic structure of the ferromagnetic material CeRh$_{3}$B$_{2}$ is studied by means of first-principles calculations with an emphasis on the treatment of localized $4f$ states around Ce. Via the construction of an effective spin…

材料科学 · 物理学 2019-03-21 Shotaro Doi , Munehisa Matsumoto

The single crystal growth, structure, and basic magnetic properties of ErMgGaO4 are reported. The structure consists of triangular layers of magnetic ErO6 octahedra separated by a double layer of randomly occupied non-magnetic (Ga,Mg)O5…

材料科学 · 物理学 2018-10-16 F. Alex Cevallos , Karoline Stolze , Robert J. Cava

Based on magnetization, specific heat, magnetostriction, and neutron diffraction studies on single-crystal TbCo2B2C, it is found out that the paramagnetic properties, down to liquid nitrogen temperatures, are well described by a Curie-Weiss…

强关联电子 · 物理学 2008-12-24 M. ElMassalami , R. Moreno , R. M. Saeed , F. A. B. Chaves , C. M. Chaves , H. Takeya , B. Ouladdiaf , M. Amara

Low-loss crystals with defects due to paramagnetic or rare earth impurity ions is a major area of investigation for quantum hybrid systems at both optical and microwave frequencies. In this work we examine the single crystal yttrium…

材料科学 · 物理学 2017-08-02 N. C. Carvalho , M. Goryachev , J. Krupka , P. Bushev , M. E. Tobar

First principles calculations are performed to investigate the thermodynamical stability, dynamical, mechanical, electronic and magnetic properties of CrTiCoZ (Z= Al/Si) novel quaternary Heusler alloys. Y-type III atomic configuration is…

材料科学 · 物理学 2022-05-11 Eesha Andharia , Hind Alquarashi , Bothina Hamad

The chromium(II) orthophosphate {\alpha}-Cr3(PO4)2 is a weak ferrimagnet with the Curie temperature TC = 29 K confirmed by a \lambda-type peak in specific heat. Dominant antiferromagnetic interactions in this system are characterized by the…