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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)…

强关联电子 · 物理学 2009-11-11 Kausik Sengupta , P. L. Paulose , E. V. Sampathkumaran , Th. Doert , J. P. F. Jemetio

We have calculated the electronic structure of V2O3 associated with the V3+ ions taking into account strong on-site electron correlations and the spin-orbit coupling. Closely lying 9 states of the subterm 3T1g are a physical reason for…

强关联电子 · 物理学 2007-05-23 Z. Ropka R. J. Radwanski

We report X-ray diffraction and magnetic susceptibility studies of the structural phase transition in $\alpha$-RuCl$_{3}$. By utilizing a single crystal sample with predominantly single twin domain, we show that $\alpha$-RuCl$_{3}$ goes…

强关联电子 · 物理学 2023-11-08 Subin Kim , Ezekiel Horsley , Jacob P. C. Ruff , Beatriz D. Moreno , Young-June Kim

Highly anisotropic properties of CeIr$_3$Si$_2$ have been observed by the magnetization $M$($B$), electrical resistivity $\rho$, and specific heat measurements on a single-crystalline sample. This compound with an orthorhombic structure…

强关联电子 · 物理学 2009-11-13 K. Shigetoh , A. Ishida , Y. Ayabe , T. Onimaru , K. Umeo , Y. Muro , K. Motoya , M. Sera , T. Takabatake

We report the enhancement of N\'eel temperature of Cr2O3 by replacing 50% of Cr by Fe prepared by sol-gel method. The structural analysis by neutron diffraction has revealed that FeCrO3 belongs to a corundum structure (R-3c space group)…

材料科学 · 物理学 2019-11-26 Rajesh kumar R , C. Dhanasekhar , N. Vijay Prakash Chaudhary , A. Das , A. Venimadhav

A correlation between the crystal structure and magnetic properties of system (1-x)BiFeO$_3$-(x)BaTiO$_3$ with compounds across the morphotropic phase boundary was studied using X-ray and neutron diffraction, magnetometry, and Mossbauer…

HoNiSi$_{3}$ is an intermetallic compound characterized by two successive antiferromagnetic transitions at $T_{N1} = 6.3$ K and $T_{N2} = 10.4$ K. Here, its zero-field microscopic magnetic structure is inferred from resonant x-ray magnetic…

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…

超导电性 · 物理学 2014-05-06 U. B. Paramanik , R. Prasad , C. Geibel , Z. Hossain

By using first-principles methods based on density functional theory we revisited the zero-temperature phase diagram of stoichiometric SrCoO3, a ferromagnetic metallic perovskite that undergoes significant structural, electronic, and…

材料科学 · 物理学 2016-12-21 Pablo Rivero , Claudio Cazorla

The structural and magnetic properties of the hexagonal four-layer form of SrMnO$_3$ have been investigated by combining magnetization measurements, electron diffraction and high-resolution synchrotron X-ray and neutron powder diffraction.…

强关联电子 · 物理学 2007-05-23 A. Daoud-Aladine , C. Martin , L. C. Chapon , M. Hervieu , K. S. Knight , M. Brunelli , P. G. Radaelli

LiCu$_3$O$_3$ is a novel 2D S=1/2 antiferromagnet with randomly depleted square lattice. The crystal structure contains two types of square planes with different Cu$^{2+}\rightarrow$ Li$^{+}$ substitution rates (20% and 40%). $^7$Li NMR and…

强关联电子 · 物理学 2024-09-09 A. A. Bush , S. K. Gotovko , V. Yu. Ivanov , V. I. Kozlov , E. G. Nikolaev , L. E. Svistov

This paper presents results of a recent study of multiferroic \CCO\ by means of single crystal neutron diffraction. This system has two close magnetic phase transitions at $T\nsub{N1}=24.2$ K and $T\nsub{N2}=23.6$ K. The low temperature…

材料科学 · 物理学 2015-05-30 M. Frontzek , G. Ehlers , A. Podlesnyak , H. Cao , M. Matsuda , O. Zaharko , N. Aliouane , S. Barilo , S. V. Shiryaev

Using density functional calculations we have examined the evolution of the electronic structure of SrRuO3 films grown on SrTiO3 substrates as a function of film thickness. At the ultrathin limit of two monolayers (RuO2-terminated surface)…

强关联电子 · 物理学 2009-06-17 Priya Mahadevan , F. Aryasetiawan , A. Janotti , T. Sasaki

The ground state properties of the pure perovskite compounds PrMnO$_3$ and NdMnO$_3$ were investigated by magnetization, magnetic AC susceptibility and specific heat measurements. A strongly anisotropic behavior has been detected for…

凝聚态物理 · 物理学 2007-05-23 J. Hemberger , M. Brando , R. Wehn , V. Yu. Ivanov , A. A. Mukhin , A. M. Balbashov , A. Loidl

The magnetic and electronic properties of the layered Zintl-phase compound EuAl$_2$Ge$_2$ crystallizing in the trigonal CaAl$_2$Si$_2$-type structure are reported. Our neutron-diffraction measurements show that EuAl$_2$Ge$_2$ undergoes…

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…

强关联电子 · 物理学 2025-10-08 Simon Rousseau , Gabriel Seyfarth , Georg Knebel , Dai Aoki , Yoshichika Ōnuki , Alexandre Pourret

This work reports an experimental investigation of the magneto-elastic coupling and polarization character of magnetic phases of the orthorhombic Eu1-xYxMnO3 system at low temperatures. The temperature dependence of the polarization…

Like most perovskites, SrRuO$_3$ exhibits structural phase transitions associated with rotations of the RuO$_6$ octahedra. The application of moderate magnetic fields in the ferromagnetically ordered state allows one to fully control these…

材料科学 · 物理学 2017-12-27 S. Kunkemöller , D. Brüning , A. Stunault , A. A. Nugroho , T. Lorenz , M. Braden

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…

强关联电子 · 物理学 2022-12-05 Santanu Pakhira , Yongbin Lee , Liqin Ke , D. C. Johnston

The dielectric constant of multiferroic hexagonal HoMnO_3 exhibits an unprecedented diversity of anomalies at low temperatures (1.8 K< T <10 K) and under external magnetic fields related to magnetic phase transitions in the coupled system…

强关联电子 · 物理学 2009-11-11 F. Yen , C. R. dela Cruz , B. Lorenz , Y. Y. Sun , Y. Q. Wang , M. M. Gospodinov , C. W. Chu