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We study the phase transition behavior of the ferroelectric BaTi$_{0.8}$Zr$_{0.2}$O$_3$ in the paraelectric region. The temperature dependencies of thermal, polar, elastic and dielectric properties indicate the presence of local structures…

A quantum critical point (QCP) of the heavy fermion Ce(Ru_{1-x}Rh_x)_2Si_2 (x = 0, 0.03) has been studied by single-crystalline neutron scattering. By accurately measuring the dynamical susceptibility at the antiferromagnetic wave vector…

Strongly Correlated Electrons · Physics 2007-05-23 Hiroaki Kadowaki , Yoshikazu Tabata , Masugu Sato , Naofumi Aso , Stephane Raymond , Shuzo Kawarazaki

X-ray magnetic critical scattering measurements and specific heat measurements were performed on the perovskite iridate Sr$_3$Ir$_2$O$_7$. We find that the magnetic interactions close to the N\'{e}el temperature $T_N$ = 283.4(2) K are…

Strongly Correlated Electrons · Physics 2019-03-27 J. G. Vale , S. Boseggia , H. C. Walker , R. S. Springell , E. C. Hunter , R. S. Perry , S. P. Collins , D. F. McMorrow

Magnetization isotherms of the 5f-electron ferromagnets URhGa, UCoGa and UCo0.98Ru0.02Al were measured at temperatures in the vicinity of their Curie temperature in order to investigate the critical behavior near the ferromagnetic phase…

Strongly Correlated Electrons · Physics 2021-01-05 Petr Opletal , Vladimír Sechovský , Jan Prokleška

We observe superconductivity below a critical temperature TC = 1.8 K in single-crystal Ir3Te8, which also exhibits normal-state diamagnetism and a linear temperature dependence of electrical resistivity for a wide temperature interval, 20 K…

The crystalline structure, magnetism, and magnetocaloric effect of a GdCrO$_3$ single crystal grown with the laser-diode-heated floating-zone technique have been studied. The GdCrO$_3$ single crystal crystallizes into an orthorhombic…

Strongly Correlated Electrons · Physics 2020-10-27 Yinghao Zhu , Pengfei Zhou , Tao Li , Junchao Xia , Si Wu , Ying Fu , Kaitong Sun , Qian Zhao , Zhen Li , Zikang Tang , Yinguo Xiao , Zhenqiang Chen , Hai-Feng Li

An investigation of the thermodynamic and electrical transport properties of the isoelectronic chemical substitution series CeTi$_{1-x}$V$_{x}$Ge$_{3}$ (CTVG) single crystals is reported. As x increases, the ferromagnetic (FM) transition…

Strongly Correlated Electrons · Physics 2024-08-12 R. -Z. Lin , H. Jin , P. Klavins , W. -T. Chen , Y. -Y. Chang , C. -H. Chung , V. Taufour , C. -L. Huang

We report measurements of the magnetic susceptibility of twinned single crystals of YBa$_{2}$Cu$_{3}$O$_{6+x}$ from just above their superconducting transition temperatures to 300 K with magnetic fields of up to 5 T applied parallel and…

Superconductivity · Physics 2016-09-21 I. Kokanović , J. R. Cooper

The bilayer of CrI3 is a prototypical van der Waals 2D antiferromagnetic material with magnetoelectric effect. It is not generally known, however, that for symmetry reasons the flexomagnetic effect, i.e., the strain gradient-induced…

Materials Science · Physics 2023-07-12 Lei Qiao , Jan Sladek , Vladimir Sladek , Alexey S. Kaminskiy , Alexander P. Pyatakov , Wei Ren

Magnetic layered van der Waals crystals are an emerging class of materials giving access to new physical phenomena, as illustrated by the recent observation of 2D ferromagnetism in Cr2Ge2Te6 and CrI3. Of particular interest in…

We report here the results of magnetic susceptibility, electrical-resistivity, magnetoresistance (MR), heat-capacity and ^{151}Eu Mossbauer effect measurements on the compound, Eu_2CuSi_3, crystallizing in an AlB_2-derived hexagonal…

Strongly Correlated Electrons · Physics 2009-10-31 Subham Majumdar , R. Mallik , E. V. Sampathkumaran , Kirsten Rupprecht , G. Wortmann

The search for two-dimensional (2D) magnetic materials has attracted a great deal of attention because of the experimental synthesis of 2D CrI$_3$, which has a measured Curie temperature of 45 K. Often times, these monolayers have a higher…

Strongly Correlated Electrons · Physics 2023-01-16 Daniel Wines , Kamal Choudhary , Francesca Tavazza

The unexpected discovery of intrinsic ferromagnetism in layered van der Waals materials has sparked interest in both their fundamental properties and their potential for novel applications. Recent studies suggest near room-temperature…

Two-dimensional van der Waals magnetic materials are intriguing for applications in the future spintronics devices, so it is crucial to explore strategy to control the magnetic properties. Here, we carried out first-principles calculations…

Materials Science · Physics 2021-07-20 Chong Xu , Qianjun Wang , Bin Xu , Jun Hu

The critical fluctuations in SrTiO$_3$ near its $105 K$ structural phase transition were studied with triple axis diffractometry using high energy ($\ge 100 keV$) synchrotron radiation in different SrTiO$_3$ crystals with different oxygen…

Materials Science · Physics 2007-05-23 H. Hünnefeld , T. Niemöller , J. R. Schneider , B. A. Kaufmann , F. Schwabl

We present reversible magnetization data of a high quality Bi2212 single crystal and explore the occurrence of 3D-xy critical behavior close to the bulk transition temperature Tc and of Kosterlitz-Thouless (KT) behavior. Below and above the…

Superconductivity · Physics 2009-06-08 S. Weyeneth , T. Schneider , E. Giannini

Cr$_2$Ge$_2$Te$_6$ is a quasi-2D semiconducting van der Waals ferromagnet down to the bilayer with great potential for technological applications. Engineering the critical temperature to achieve room temperature applications is one of the…

Strongly Correlated Electrons · Physics 2022-05-23 S. Spachmann , A. Elghandour , S. Selter , B. Büchner , S. Aswartham , R. Klingeler

The magnetization of single crystal SrRuO3 is studied as a function of temperature along different crystallographic directions. The magnetocrystalline anisotropy and behavior near the critical transition temperature are analyzed in detail.…

Materials Science · Physics 2019-04-30 G. Jeffrey Snyder

We report a chemical substitution-induced ferromagnetic quantum critical point in polycrystalline Ni$_{1-x}$Rh$_x$ alloys. Through magnetization and muon spin relaxation measurements, we show that the ferromagnetic ordering temperature is…

Strongly Correlated Electrons · Physics 2020-03-23 C. -L. Huang , A. M. Hallas , K. Grube , S. Kuntz , B. Spiess , K. Bayliff , T. Besara , T. Siegrist , Y. Cai , J. Beare , G. M. Luke , E. Morosan

Higher-order exchange interactions and quantum effects are widely known to play an important role in describing the properties of low-dimensional magnetic compounds. Here we identify the recently discovered two-dimensional (2D) van der…

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