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A series of polycrystalline samples of Sr2-xIrO4 have been synthesized by a solid-state reaction method. The crystal structure of this doped system can be explained on the basis of the extended nature of 5d electrons and strontium vacancies…

强关联电子 · 物理学 2016-11-09 Jimei Kong , S. L. Liu , Jie Cheng , Haiyun Wang , Xing ao Li , Z. H. Wang

We report the single-crystal X-ray analysis and magnetic properties of a new double-layered perovskite antiferromagnet, Cs$_3$Cu$_2$Cl$_4$Br$_3$. This structure is composed of Cu$_2$Cl$_4$Br$_3$ double layers with elongated CuCl$_4$Br$_2$…

强关联电子 · 物理学 2015-06-25 F. Yamada , T. Ono , H. Tanaka , J. Yamaura

Powder X-ray diffraction (PXRD) and single-crystal neutron scattering were used to study in detail the structural properties of the Cs2CuCl(4-x)Br(x) series, good realizations of layered triangular antiferromagnets. Detailed…

The high temperature magnetic order in SrRu$_2$O$_6$ was studied by measuring magnetization and neutron powder diffraction with both polarized and unpolarized neutrons. SrRu$_2$O$_6$ crystallizes into the hexagonal lead antimonate…

强关联电子 · 物理学 2019-08-17 W. Tian , C. Svoboda , M. Ochi , M. Matsuda , H. B. Cao , J. -G. Cheng , B. C. Sales , D. G. Mandrus , R. Arita , N. Trivedi , J. -Q. Yan

We report a single-crystal neutron diffraction study of the layered $\rm Sr_2IrO_4$. This work unambiguously determines the magnetic structure of the system and reveals that the spin orientation rigidly tracks the staggered rotation of the…

强关联电子 · 物理学 2013-04-23 Feng Ye , Songxue Chi , Bryan C. Chakoumakos , Jaime A. Fernandez-Baca , Tongfei Qi , G. Cao

The antiperovskite-related nitride Cr$_3$GeN forms a tetragonal structure with the space group $P\bar{4}2_1m$ at room temperature. It shows a tetragonal ($P\bar{4}2_1m$) to tetragonal ($I4/mcm$) structural transition with a large hysteresis…

强关联电子 · 物理学 2017-08-02 K. Takao , Z. Liu , K. Uji , T. Waki , Y. Tabata , I. Watanabe , H. Nakamura

We report the results of ac and dc magnetization (M) and heat-capacity (C) measurements on the solid solution, Sr$_3$Cu$_{1-x}$Zn$_x$IrO$_6$. While the Zn end member is known to form in a rhombohedral pseudo one-dimensional K$_4$CdCl$_6$…

强关联电子 · 物理学 2009-11-07 Asad Niazi , E. V. Sampathkumaran , P. L. Paulose , D. Eckert , A. Handstein , K. -H. Müller

The recently proposed novel materials class called Weyl-Kondo semimetal (WKSM) is a time reversal invariant but inversion symmetry broken Kondo semimetal in which Weyl nodes are pushed to the Fermi level by the Kondo interaction. Here we…

We report on the spin densities in CeRuSn determined at elevated and at low temperatures using polarized neutron diffraction. At 285 K, where the CeRuSn crystal structure, commensurate with the CeCoAl type, contains two different…

强关联电子 · 物理学 2016-11-04 K. Prokes , S. Hartwig , A. Gukasov , J. A. Mydosh , Y. -K. Huang , O. Niehaus , R. Pottgen

Ce$_{3}$Bi$_{4}$Au$_{3}$ crystallizes in the same non-centrosymmetric cubic structure as the prototypical Kondo insulator Ce$_{3}$Bi$_{4}$Pt$_{3}$. Here we report the physical properties of Ce$_{3}$Bi$_{4}$Au$_{3}$ single crystals using…

The effect of isoelectronic substitution within single crystals of (Sr1-xCax)2-yIrO4+z is explored. The nominal n=1 Ruddlesden-Popper phase with y=0, z=0 remains stable from x=0 until x=0.11, where the antiferromagnet spin-orbit Mott…

材料科学 · 物理学 2016-11-23 Xiang Chen , Stephen D. Wilson

The Kondo system CeRu$_4$Sn$_6$ shows a strong anisotropy in its electric, optic and magnetic properties. We employ density functional theory plus dynamical mean field theory and show that the predominant Ce-$f$ state has total angular…

强关联电子 · 物理学 2016-03-23 P. Wissgott , K. Held

We have used single crystal X-ray diffraction methods to establish the crystal structures of a compound in the Pd-Mn-Si system and in the Pd-Mn-Ge system. The title compounds have structures related to the Fe$_2$P structure type and are…

材料科学 · 物理学 2007-06-16 Srinivasa Thimmaiah , Claudia Felser , Ram Seshadri

Ferromagnetic compound PrRu2Si2 exhibits a giant magnetocrystalline anisotropy of about 400 T. Its ordered moment below Tc=14K reaches 2.7 mB and is parallel to [0 0 1] crystalline direction. We have attributed the magnetism of PrRu2S2 to…

强关联电子 · 物理学 2009-10-31 R. Michalski , Z. Ropka , R. J. Radwanski

We report the synthesis, structure, and magnetic and transport properties of a new ternary intermetallic compound PrRhSn3 which crystallizes in LaRuSn3-type cubic structure (space group Pm-3n). At low applied fields the dc magnetic…

强关联电子 · 物理学 2014-07-22 V. K. Anand , D. T. Adroja , A. D. Hillier

We present an extensive powder and single-crystal neutron scattering investigation of the crystallographic structure and magnetic order of the frustrated metallic $f$-electron magnet UNi$_4$B. We carry out a full refinement of the…

In this study we report the results of study of novel ternary $Np_2PtGa_3$ compound. The x-ray-powder diffraction analysis reveals that the compound crystallizes in the orthorhombic CeCu$_2$-type crystal structure (space group Imma) with…

强关联电子 · 物理学 2014-12-08 V. H. Tran , J. -C. Griveau , R. Eloirdi , E. Colineau

The synthesis and crystallographic and physical properties of polycrystalline EuNiGe3 are reported. EuNiGe3 crystallizes in the noncentrosymmetric body-centered tetragonal BaNiSn3-type structure. The physical property data consistently…

强关联电子 · 物理学 2013-06-26 R. J. Goetsch , V. K. Anand , D. C. Johnston

We have grown the single crystal of PrRhAl$_4$Si$_2$, which crystallizes in the tetragonal crystal structure. From the low temperature physical property measurements like, magnetic susceptibility, magnetization, heat capacity and electrical…

强关联电子 · 物理学 2016-06-22 Arvind Maurya , Ruta Kulkarni , A. Thamizhavel , S. K. Dhar

Noncentrosymmetric magnets usually host intriguing magnetic interactions inherent the crystal structure with broken inversion symmetry, which can give rise to rich magnetic behaviors. We report herein the high-pressure synthesis, crystal…