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The magnetic behavior of single-crystalline CeCuGa3 has been investigated. The compound forms in a tetragonal BaAl4-type structure consisting of rare-earth planes separated by Cu-Ga layers. If the Cu-Ga site disorder is reduced, CeCuGa3…

强关联电子 · 物理学 2015-06-04 Devang A. Joshi , P. Burger , P. Adelmann , D. Ernst , T. Wolf , K. Sparta , G. Roth , K. Grube , C. Meingast , H. v. Löhneysen

We present experimental evidence for small-moment magnetism below the ferromagnetic transition temperature (T_c3 = 183 K) in the quasi-one-dimensional metal BaIrO_3. Further, we identify rearrangement of the local magnetic moment…

强关联电子 · 物理学 2009-11-11 M. L. Brooks , S. J. Blundell , T. Lancaster , W. Hayes , F. L. Pratt , P. P. C. Frampton , P. D. Battle

We report our comprehensive study of physical properties of a ternary intermetallic compound PrIrSi3 investigated by dc magnetic susceptibility chi(T), isothermal magnetization M(H), thermo-remnant magnetization M(t), ac magnetic…

强关联电子 · 物理学 2014-07-22 V. K. Anand , D. T. Adroja , A. Bhattacharyya , A. D. Hillier , J. W. Taylor , A. M. Strydom

To study the relationship between the properties of low-dimensional spin systems with weakly coupled Cu-triangles and their crystal structure, single crystals of $Cs_3Cu_3Cl_8OH$ (1) and the new $Cs_3Cu_3Cl_{7.6}Br_{0.4}OH$ (2) were grown.…

In the majority of magnetic systems the surface is required to order at the same temperature as the bulk. In the present study, we report a distinct and unexpected surface magnetic phase transition, uniquely at a lower temperature than the…

From magnetic susceptibility, dielectric permittivity, electric polarization and specific heat measurements, we discover spin-induced ferroelectricity and magnetoelectric coupling in Mn3TeO6 and observe two successive magnetic transitions…

材料科学 · 物理学 2015-12-01 L. Zhao , Z. Hu , C. Y. Kuo , T. -W. Pi , M. -K. Wu , L. H. Tjeng , A. C. Komarek

For decades it has been a well-known fact that among the few ferroelectric compounds in the perovskite family namely BaTiO3, KNbO3, PbTiO3 Na1/2Bi1/2TiO3 the dielectric and piezoelectric properties of BaTiO3 is considerably higher than the…

The charge transfer antiferromagnetic (T$_{N}$ =220 K) insulator EuNiO$_{3}$ undergoes, at ambient pressure, a temperature-induced metal insulator MI transition at T$_{MI}$=463 K. We have investigated the effect of pressure (up to p~20 GPa)…

强关联电子 · 物理学 2009-11-11 R. Lengsdorf , A. Barla , J. A. Alonso , M. J. Martinez-Lope , H. Micklitz , M. M. Abd-Elmeguid

High-quality single crystals of EuAuAs were studied by means of powder x-ray diffraction, magnetization, magnetic susceptibility, heat capacity, electrical resistivity and magnetoresistance measurements. The compound crystallizes with a…

强关联电子 · 物理学 2022-08-23 S. Malick , J. Singh , A. Laha , V. Kanchana , Z. Hossain , D. Kaczorowski

We have synthesized single crystals of Na_2IrO_3 and studied their structure, transport, magnetic, and thermal properties using powder x-ray diffraction (PXRD), electrical resistivity, isothermal magnetization M versus magnetic field H,…

强关联电子 · 物理学 2010-06-03 Yogesh Singh , P. Gegenwart

A number of recent studies indicate that the charge conduction of the LaAlO$_3$/SrTiO$_3$ interface at low temperature is confined to filaments which are linked to structural domain walls in the SrTiO$_3$ with drastic consequences for…

介观与纳米尺度物理 · 物理学 2021-08-25 M. S. Prasad , G. Schmidt

We present detailed, low temperature, magnetoresistance and specific heat data of single crystal YbNiSi3 measured in magnetic field applied along the easy magnetic axis, H || b. An initially antiferromagnetic ground state changes into a…

强关联电子 · 物理学 2007-05-23 Sergey L. Bud'ko , Paul C. Canfield , Marcos A. Avila , Toshiro Takabatake

The effect of electron doping on the structural, transport, and magnetic properties of Mn (IV) - rich Ca1-xYxMnO3 (x < 0.2) samples have been investigated using neutron diffraction, neutron depolarization, magnetization and resistivity…

材料科学 · 物理学 2016-02-09 Neetika Sharma , A. Das , C. L. Prajapat , Amit Kumar , M. R. Singh

$\rm SrRuO_3$ is an itinerant ferromagnet with $T_c \sim 150 \rm K$. When $\rm SrRuO_3$ is cooled through $T_c$ in zero applied magnetic field, a stripe domain structure appears whose orientation is uniquely determined by the large uniaxial…

强关联电子 · 物理学 2011-06-15 L. Klein , Y. Kats , A. F. Marshall , J. W. Reiner , T. H. Geballe , M. R. Beasley , A. Kapitulnik

The behavior of PbTiO$_3$ under uniaxial strains and stresses is investigated from first-principles calculations within density functional theory. We show that irrespectively of the uniaxial mechanical constraint applied, the system keeps a…

材料科学 · 物理学 2015-06-22 Henu Sharma , Jens Kreisel , Philippe Ghosez

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…

We investigate magnetotransport in exfoliated nanostructures of the candidate magnetic 3D topological insulator $\mathrm{EuSn_{2}As_{2}}$. Similar to macroscopic single crystals, the negative magnetoresistance observed below the N\'eel…

We grew high-quality single crystals of the 5f electron van der Waals compound UI$_3$ and investigated them by measurements of specific heat and magnetization as functions of temperature and magnetic field. UI$_3$ behaves as an…

We report the structural and magnetic ground state properties of the monoclinic compound barium iridium oxide Ba$_4$Ir$_3$O$_{10}$ using a combination of resonant x-ray scattering, magnetometry, and thermodynamic techniques. Magnetic…

A single material achieving multiple topological phases can provide potential application for topological spintronics, whereas the candidate materials are very limited. Here, we report the structure, physical properties, and possible…

材料科学 · 物理学 2024-08-22 Xuhui Wang , Boxuan Li , Liqin Zhou , Long Chen , Yulong Wang , Yaling Yang , Ying Zhou , Ke Liao , Hongming Weng , Gang Wang