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Double perovskites Sr$_2$FeMO$_6$ (M=Mo and Re) exhibit significant colossal magnetoresistance even at room temperature due to the high Curie Temperature (419K and 401K). However, such a high Curie Temperature is puzzling, given the large…

Materials Science · Physics 2009-11-07 Z. Fang , K. Terakura , J. Kanamori

The high temperature ferromagnetism in Sr3YCo4O10+delta perovskite, whose origin has been the subject of a considerable debate, has been studied by neutron powder diffraction and synchrotron X-ray diffraction measurements. Oxygen vacancy…

Detailed magnetization and magneto-transport measurements studies are carried out to unearth the anomalous magnetism of Pr in PrCoAsO compound. The studied PrCoAsO sample is single phase and crystallized in the tetragonal structure with…

Superconductivity · Physics 2014-01-21 Brajesh Tiwari , Anand Pal , V. P. S. Awana

RuSr_2GdCu_2O_8 (Ru-1212) is a triple perovskite containing both CuO_2 and RuO_2 layers. It has attracted a great deal of interest recently because it displays electronic ferromagnetism and superconductivity coexisting on a microscopic…

Superconductivity · Physics 2007-05-23 J. E. McCrone , J. R. Cooper , J. L. Tallon

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…

Materials Science · Physics 2017-12-27 S. Kunkemöller , D. Brüning , A. Stunault , A. A. Nugroho , T. Lorenz , M. Braden

We develop a technique for predicting the Curie temperature of magnetic materials using density functional theory calculations suitable to include in high-throughput frameworks. We apply four different models, including physically relevant…

High purity polycrystalline Na0.5La0.5RuO3 was synthesized by a solid state method, and its properties were studied by magnetic susceptibility, heat capacity and resistivity measurements. We find it to be a tetragonal perovskite, in…

Strongly Correlated Electrons · Physics 2020-09-24 Loi T. Nguyen , Matthieu Saubanère , Robert J. Cava

Magnetometry, electrical transport, and neutron scattering measurements were performed on single crystals of the Fe^{4+}-containing perovskite-related phase Sr_3Fe_2O_7-x as a function of oxygen content. Although both the crystal structure…

Strongly Correlated Electrons · Physics 2013-06-12 D. C. Peets , J. -H. Kim , P. Dosanjh , M. Reehuis , A. Maljuk , N. Aliouane , C. Ulrich , B. Keimer

We have performed a comprehensive, first-principles high-throughput study of the magnetic properties of halide double perovskites, $Cs_2BB^\prime Cl_6$, with magnetic ions occupying one or both B and B$^\prime$ sites. Our findings indicate…

Materials Science · Physics 2023-06-16 Utkarsh Singh , Johan Klarbring , Igor A. Abrikosov , Sergei I. Simak

The dependence of the Curie temperature Tc on nearly hydrostatic pressure has been determined to 17.2 GPa for the weak itinerant ferromagnetic SrRuO3 in both polycrystalline and single-crystalline form. Tc is found to decrease under…

Strongly Correlated Electrons · Physics 2009-11-11 J. J. Hamlin , S. Deemyad , J. S. Schilling , M. K. Jacobsen , R. S. Kumar , A. L. Cornelius , G. Cao , J. J. Neumeier

Magnetic insulators have been intensively studied for over 100 years, and they, in particular ferrites, are considered to be the cradle of magnetic exchange interactions in solids. Their wide range of applications include microwave devices…

The solid solution between the ferromagnetic metal SrRuO$_3$ and the enhanced paramagnetic metal SrRhO$_3$ was recently reported [K. Yamaura et al., Phys. Rev. B 69 (2004) 024410], and an unexpected feature was found in the specific heat…

Strongly Correlated Electrons · Physics 2009-11-10 K. Yamaura , D. P. Young , E. Takayama-Muromachi

We discuss the properties of semiconducting bulk ZnO when substituted with the magnetic transition metal ions Mn and Co, with substituent fraction ranging from $x$ = 0.02 to $x$ = 0.15. The magnetic properties were measured as a function of…

Materials Science · Physics 2009-11-10 G. Lawes , A. S. Risbud , A. P. Ramirez , Ram Seshadri

We investigate in this paper magnetic properties of the perovskite compound (La0.56Ce0.14)Sr0.30MnO3. The method we use here is Monte Carlo simulation, in which we take into account different kinds of interactions between nearest and…

Strongly Correlated Electrons · Physics 2016-08-24 Samia Yahyaoui , H. T. Diep

The magnetic state of Nitrogen-doped MgO, with N substituting O at concentrations between 1% and the concentrated limit, is calculated with density-functional methods. The N atoms are found to be magnetic with a moment of 1 Bohr magneton…

Materials Science · Physics 2009-11-13 Phivos Mavropoulos , Marjana Lezaic , Stefan Blügel

The magnetic properties of polycrystaline La0.5Ba0.5CoO2.5+d (d = 0.44 and 0.485) where investigated using muon spin relaxation and bulk magnetization experiments. Below a Curie temperature of T_C = 160 K and 180 K, respectively, a magnetic…

Strongly Correlated Electrons · Physics 2011-11-23 M. Stingaciu , H. Luetkens , Y. G. Pashkevich , E. Pomjakushina , K. Conder , H. -H. Klauss

Double-perovskite oxides that contain both 3d and 5d transition metal elements have attracted growing interest as they provide a model system to study the interplay of strong electron interaction and large spin-orbit coupling (SOC). Here,…

Strongly Correlated Electrons · Physics 2016-09-01 W. K. Zhu , J. -C. Tung , W. Tong , L. Ling , M. Starr , J. M. Wang , W. C. Yang , Y. Losovyj , H. D. Zhou , Y. Q. Wang , P. -H. Lee , Y. -K. Wang , Chi-Ken Lu , S. X. Zhang

Quadruple perovskites ACu$_3$Fe$_2$Re$_2$O$_{12}$ attract considerable interest due to their high Curie temperatures (up to $710$K), which strongly depend on the A-site cation. In this work, we employ first-principles calculations to…

Using the Kondo lattice model with classical spins in infinite dimension, magnetic phase transition in the perovskite-type $3d$ transition-metal oxide (La,Sr)MnO$_3$ is theoretically studied. On the Bethe lattice, the self-consistency…

Condensed Matter · Physics 2016-08-31 Nobuo Furukawa

Various physical properties (electronic, optical and thermoelectric) of cubic perovskite oxides $SrXO_3\; (X=Sc,\; Ge,\; Si)$ are investigated by using the density functional theory (DFT) within Wien2k code. This code is based on different…

Materials Science · Physics 2022-11-15 A Waqdim , M Agouri , A Abbassi , B. Elhadadi , Z. Zidane , S Taj , B Manaut , M Driouich , M El Idrissi