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Zintl phases, containing strongly covalently bonded frameworks with separate ionically bonded ions, have emerged as a critical materials family in which to couple magnetism and strong spin-orbit coupling to drive diverse topological phases…

We report results of a magneto-optical investigation of the Zintl-phase compound EuIn$_2$P$_2$. The compound orders magnetically at $T_C$=24 K and exhibits concomitant large magnetoresistance effects. For $T\le$50 K and increasing magnetic…

Strongly Correlated Electrons · Physics 2012-01-11 F. Pfuner , L. Degiorgi. H. R. Ott , A. D. Bianchi , Z. Fisk

Narrow-gap rare-earth Zintl phases frequently exhibit fascinating physical phenomena due to their various crystal structures, complex magnetic properties, and tunable transport behaviors. Here we report the synthesis, magnetic,…

Materials Science · Physics 2024-11-27 Zhiyu Zhou , Ziwen Wang , Xiyu Chen , Jia-Yi Lu , Junchao Zhang , Xiong Luo , Guang-Han Cao , Shuai Dong , Zhi-Cheng Wang

The thermodynamic and electronic-transport properties of trigonal EuMg2Bi2 in ab-plane magnetic fields Hx and the A-type antiferromagnetic structure have recently been reported. At a temperature of 1.8 K < TN, the Eu magnetic moments with…

Strongly Correlated Electrons · Physics 2022-12-05 Santanu Pakhira , Yongbin Lee , Liqin Ke , D. C. Johnston

The trigonal compound EuMg2Bi2 has recently been discussed in terms of its topological band properties. These are intertwined with its magnetic properties. Here detailed studies of the magnetic, thermal, and electronic transport properties…

Strongly Correlated Electrons · Physics 2020-07-01 Santanu Pakhira , M. A. Tanatar , D. C. Johnston

We study the temperature dependence of the conductivity of the 2D electronic solid. In realistic samples, a domain structure forms in the solid and each domain randomly orients in the absence of the in-plane field. At higher temperature,…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Shi-Jie Yang , Yue Yu

We have grown single crystals of EuFe2As2 and investigated its electrical transport and thermodynamic properties. Electrical resistivity and specific heat measurements clearly establish the intrinsic nature of magnetic phase transitions at…

Superconductivity · Physics 2009-11-13 H. S. Jeevan , Z. Hossain , Deepa Kasinathan , H. Rosner , C. Geibel , P. Gegenwart

We report on the crystal structure, physical properties, and electronic structure calculations for the ternary pnictide compound EuCr2As2. X-ray diffraction studies confirmed that EuCr2As2 crystalizes in the ThCr2Si2-type tetragonal…

Superconductivity · Physics 2014-05-06 U. B. Paramanik , R. Prasad , C. Geibel , Z. Hossain

We studied electrical resistance of a single-crystalline SmB6 sample with a focus on the region of the "low-temperature resistivity plateau". Our observations did not show any true saturation of the electrical resistance at temperatures…

Strongly Correlated Electrons · Physics 2017-09-08 Marianna Batkova , Ivan Batko , Slavomir Gabani , Emil Gazo , Elena Konovalova , Vladimir Filippov

Eu-based Zintl-phase materials EuA$_2$Pn$_2$ (A = Mg, In, Cd, Zn; Pn = Bi, Sb, As, P) have generated significant recent interest owing to the complex interplay of magnetism and band topology. Here, we investigated the electronic, magnetic,…

Strongly Correlated Electrons · Physics 2022-07-27 Santanu Pakhira , Farhan Islam , Evan O'Leary , M. A. Tanatar , Thomas Heitmann , R. Prozorov , Adam Kaminski , David Vaknin , D. C. Johnston

Single crystals of EuPd2Sb2 have been grown from PdSb self-flux. The properties of the single crystals have been investigated by x-ray diffraction, magnetic susceptibility chi, magnetization M, electrical resistivity rho, Hall coefficient…

Superconductivity · Physics 2010-11-17 S. Das , K. McFadden , Yogesh Singh , R. Nath , A. Ellern , D. C. Johnston

We investigate single crystals of the trigonal antiferromagnet EuZn$_2$P$_2$ ($P\overline{3}m1$) by means of electrical transport, magnetization measurements, X-ray magnetic scattering, optical reflectivity, angle-resolved photoemission…

The intermetallic compound Eu$_5$In$_2$Sb$_6$, an antiferromagnetic material with nonsymmorphic crystalline structure, is investigated by magnetic, electronic transport and specific heat measurements. Being a Zintl phase, insulating…

In divalent Eu systems, the 4f local moment has a pure spin state J=S=7/2. Although the absence of orbital moment precludes crystal electric field effects, we report a sizeable magnetic anisotropy in single crystals of EuRh2Si2. We observed…

Materials Science · Physics 2019-01-23 Silvia Seiro , Christoph Geibel

The physical properties of self-flux grown EuPd2As2 single crystals have been investigated by magnetization M, magnetic susceptibility chi, specific heat Cp, and electrical resistivity rho measurements versus temperature T and magnetic…

Strongly Correlated Electrons · Physics 2014-06-23 V. K. Anand , D. C. Johnston

Single crystals of RPd${_2}$P${_2}$ (R=Y, La-Nd, Sm-Ho, Yb) were grown out of a high temperature solution rich in Pd and P and characterized by room-temperature powder X-ray diffraction, anisotropic temperature- and field-dependent…

Strongly Correlated Electrons · Physics 2016-06-29 Gil Drachuck , Anna E. Böhmer , Sergey L. Bud'ko , Paul C. Canfield

We synthesized single crystals for Mn2-xZnxSb and studied their magnetic and electronic transport properties. This material system displays rich magnetic phase tunable with temperature and Zn composition. In addition, two groups of distinct…

The mechanism of the peculiar transport properties around the magnetic ordering temperature of semiconducting antiferromagnetic EuCd$_2$P$_2$ is not yet understood. With a huge peak in the resistivity observed above the N\'eel temperature,…

We report a comprehensive study on the electronic transport properties of SrZn2Ge2 single crystals. The electrical resistivity of the compound exhibits metallic behavior, following a T^2 dependence below 35 K, consistent with the Fermi…

Strongly Correlated Electrons · Physics 2025-02-25 M. K. Hooda , A. Chakraborty , S. Roy , R. Swami , A. Agarwal , P. Mandal , S. N. Sarangi , D. Samal , V. P. S. Awana , Z. Hossain

Single crystals of CaZn2Sb2, EuZn2Sb2, and YbZn2Sb2 were grown from melts of nominal composition AZn5Sb5 (A=Ca,Eu,Yb) with the excess melt being removed at 1073\,K. The electrical transport properties are consistent with those previously…

Materials Science · Physics 2012-02-20 Andrew F. May , Michael A. McGuire , Jie Ma , Olivier Delaire , Ashfia Huq , Radu Custelcean
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