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Related papers: Emergent Anomalous Hall Effect in the Eu-Based Com…

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We examine the magnetic and electrical transport properties of the hexagonal EuIn2As2 compound, combining experimental and theoretical results. This compound is predicted to be an axion-insulator from an electronic point of view and an…

We report resistivity and Hall effect measurements in the chiral antiferromagnet EuPtSi. Depending on the magnetic field orientation with respect to the crystallographic axes, EuPtSi presents different topological magnetic phases below the…

Strongly Correlated Electrons · Physics 2025-10-08 Simon Rousseau , Gabriel Seyfarth , Georg Knebel , Dai Aoki , Yoshichika Ōnuki , Alexandre Pourret

Magnetic, thermal and transport properties of the non-centrosymmetric compound Eu$_2$Pd$_2$Sn are revisited after including new measurements. In its paramagnetic phase, the outstanding feature of this compound is the formation of Eu$^{2+}$…

Strongly Correlated Electrons · Physics 2023-08-02 J. G. Sereni , I. Čurlik , M. Reiffers , M. Goivannini

The compound EuCo{2-y}As2 with the tetragonal ThCr2Si2 structure is known to contain Eu{+2} ions with spin S = 7/2 that order below a temperature TN = 47 K into an antiferromagnetic (AFM) proper helical structure with the ordered moments…

Strongly Correlated Electrons · Physics 2018-04-25 N. S. Sangeetha , V. K. Anand , Eduardo Cuervo-Reyes , V. Smetana , A. -V. Mudring , D. C. Johnston

An antiferromagnetic transition is observed in single crystal EuRh2As2 at a high temperature T_N = 47 K compared to the ferromagnetic Weiss temperature theta = 12 K. We show that this is, surprisingly, consistent with mean field theory. A…

Strongly Correlated Electrons · Physics 2010-11-12 Yogesh Singh , Y. Lee , B. N. Harmon , D. C. Johnston

We report the measurements of anisotropic magnetization and magnetoresistance on single crystals of EuFe$_2$As$_2$, a parent compound of ferro-arsenide high-temperature superconductor. Apart from the antiferromagnetic (AFM)…

Superconductivity · Physics 2009-11-13 Shuai Jiang , Yongkang Luo , Zhi Ren , Zengwei Zhu , Cao Wang , Xiangfan Xu , Qian Tao , Guanghan Cao , Zhu'an Xu

This work reports a study of the nonlinear Hall Effect (HE) in the semimetallic ferromagnet EuB6. A distinct switch in its Hall resistivity slope is observed in the paramagnetic phase, which occurs at a single critical magnetization over a…

Strongly Correlated Electrons · Physics 2009-09-01 Xiaohang Zhang , Liuqi Yu , Stephan von Molnar , Zachary Fisk , Peng Xiong

We have carried out magnetization, heat capacity, electrical and magnetoresistance measurements (2-300 K) for the polycrystalline form of intermetallic compounds, R2RhSi3 (R= Gd, Tb, and Dy), forming in a AlB2 derived hexagonal structure…

Strongly Correlated Electrons · Physics 2020-05-20 Ram Kumar , Kartik K Iyer , P. L. Paulose , E. V. Sampathkumaran

The Eu-based compound, EuCu2As2, crystallizing in the ThCr2Si2-type tetragonal structure, has been synthesized and its magnetic behavior has been investigated by magnetization (M), heat-capacity (C) and electrical resistivity (rho)…

Strongly Correlated Electrons · Physics 2009-11-11 Kausik Sengupta , P. L. Paulose , E. V. Sampathkumaran , Th. Doert , J. P. F. Jemetio

In this work, we synthesized single crystal of EuCd$_2$As$_2$, which exhibits A-type antiferromagnetic (AFM) order with in-plane spin orientation below $T_N$ = 9.5~K.Optical spectroscopy and transport measurements suggest its topological…

The simultaneous presence of a Fe-related spin-density wave and antiferromagnetic order of Eu$^{2+}$ moments ranks EuFe$_2$As$_2$ among the most interesting parent compounds of iron-based pnictide superconductors. Here we explore the…

Materials Science · Physics 2018-09-19 L. M. Tran , M. Babij , L. Korosec , T. Shang , Z. Bukowski , T. Shiroka

Frustrated rare-earth-based intermetallics provide a promising platform for emergent magnetotransport properties through exchange coupling between conduction electrons and localized rare-earth magnetic moments. Metamagnetism, the abrupt…

Strongly Correlated Electrons · Physics 2024-05-29 Takashi Kurumaji , Shiang Fang , Linda Ye , Shunsuke Kitou , Joseph G. Checkelsky

Recent work analyzing the impact of non-symmorphic symmetries on electronic states has given rise to the discovery of multiple types of topological matter. Here we report the single-crystal synthesis and magnetic properties of EuGa2Sb2, an…

Strongly Correlated Electrons · Physics 2021-11-25 Tanya Berry , Sean R. Parkin , Tyrel M. McQueen

We have systematically measured resistivity, susceptibility and specific heat under different magnetic fields (H) in Eu$_{1-x}$La$_x$Fe$_2$As$_2$ single crystals. It is found that a metamagnetic transition from A-type antiferromagnetism to…

Superconductivity · Physics 2015-05-13 T. Wu , G. Wu , H. Chen , Y. L. Xie , R. H. Liu , X. F. Wang , X. H. Chen

We report the observation of anomalous Hall resistivity in single crystals of EuAl$_4$, a centrosymmetric tetragonal compound, which exhibits coexisting antiferromagnetic (AFM) and charge-density-wave (CDW) orders with onset at…

Strongly Correlated Electrons · Physics 2021-01-13 T. Shang , Y. Xu , D. J. Gawryluk , J. Z. Ma , T. Shiroka , M. Shi , E. Pomjakushina

EuZn$_2$P$_2$ was reported to be an insulating antiferromagnet with $T_\mathrm{N}$ of 23.5 K. In this study, single crystals of EuZn$_2$P$_2$ exhibiting metallic behavior and a ferromagnetic order of 72 K ($T_\mathrm{C}$) are successfully…

Materials Science · Physics 2024-06-11 Xiyu Chen , Wuzhang Yang , Jia-Yi Lu , Zhiyu Zhou , Zhi Ren , Guang-Han Cao , Shuai Dong , Zhi-Cheng Wang

The tetragonal compound UPt2Si2 has been characterised as a moderately mass enhanced system with an antiferromagnetic ground state below T_N = 32 K. Here, we present an extensive study of the behavior in high magnetic fields. We have…

Electron-doped Eu(Fe$_{0.93}$Rh$_{0.07}$)$_2$As$_2$ has been systematically studied by high pressure investigations of the magnetic and electrical transport properties, in order to unravel the complex interplay of superconductivity and…

Superconductivity · Physics 2017-05-31 A. Löhle , A. Baumgartner , S. Zapf , W. H. Jiao , G. H. Cao , M. Dressel

Heavy fermion (HF) materials exhibit a rich array of phenomena due to the strong Kondo coupling between their localized moments and itinerant electrons. A central question in their study is to understand the interplay between magnetic order…

Materials Science · Physics 2016-03-02 S. M. Thomas , P. F. S. Rosa , S. B. Lee , S. A. Parameswaran , Z. Fisk , J. Xia

Ternary iron arsenide EuFe$_2$As$_2$ with ThCr$_2$Si$_2$-type structure has been studied by magnetic susceptibility, resistivity, thermopower, Hall and specific heat measurements. The compound undergoes two magnetic phase transitions at…

Superconductivity · Physics 2008-08-14 Zhi Ren , Zengwei Zhu , Shuai Jiang , Xiangfan Xu , Qian Tao , Cao Wang , Chunmu Feng , Guanghan Cao , Zhu'an Xu
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