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Related papers: Possible Magnetic separation in Ru doped La0.67Ca0…

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We report physical property characterization of Bi2-xMxRu2O7 pyrochlores, including magnetic suseptibility, resistivity, and Seebeck coefficients. The solid solution exists up to x=0.5 for (M=Cu,Ni,Co) and up to x=0.1 for (M=Fe,Mn). None of…

Superconductivity · Physics 2009-11-07 M. K. Haas , R. J. Cava , M. Avdeev , J. D. Jorgensen

The effect of doping Mo for Mn on the magnetic and transport properties of the colossal magnetoresistance material, La0.67Ba0.33MnO3, has been studied. Compounds of the series La0.67Ba0.33Mn1-xMoxO3 (x=0.0 to 0.1) have been prepared and…

Materials Science · Physics 2009-11-11 Darshan C. Kundaliya , Reeta Vij , R. G. Kulkarni , B. Varughese , A. K. Nigam , S. K. Malik

Strong spin-lattice coupling and prominent frustration effects observed in the 50$\%$ Fe-doped frustrated hexagonal ($h$)LuMnO$_3$ are reported. A N\'{e}el transition at $T_{\mathrm N} \approx$ 112~K and a possible spin re-orientation…

Strongly Correlated Electrons · Physics 2015-12-24 Harikrishnan S. Nair , Zhendong Fu , C. M. N. Kumar , V. Y. Pomjakushin , Yinguo Xiao , Tapan Chatterji , André M. Strydom

In the orthorhombic manganites o-RMnO3, where R is a heavy rare earth (R = Gd-Yb), the Mn3+ sublattice is known to undergo two magnetic transitions. The low temperature phase has an antiferromagnetic structure (collinear or elliptical),…

Strongly Correlated Electrons · Physics 2018-01-17 Mathieu Duttine , Alain Wattiaux , Felix Balima , Claudia Decorse , Hicham Moutaabbid , Pierre Bonville

The impurity induced antiferromagnetic ordering of the doped spin-Peierls magnet Cu(1-x)Mg(x)GeO(3) was studied by ESR technique. Crystals with the Mg concentration x<4% demonstrate a coexistence of paramagnetic and antiferromagnetic ESR…

Strongly Correlated Electrons · Physics 2009-11-07 V. N. Glazkov , A. I. Smirnov , K. Uchinokura , T. Masuda

An unreported praseodymium substituted phase of the Bi-Ru-O system with formula Bi2.67Pr0.33Ru3O11was prepared. Its crystal structure and magnetic properties were investigated. Pr substituted occurs only on one of the two Bi sites. The…

Materials Science · Physics 2009-11-13 Siwar Zouari , Abdelwaheb Cheikh-Rouhou , Rafik Ballou , Pierre Strobel

We present a combined high-resolution x-ray diffraction and x-ray resonant magnetic scattering (XRMS) study of as-grown BaFe2As2. The structural/magnetic transitions must be described as a two-step process. At T_S = 134.5 K we observe the…

The Ru0.9Sr2YCu2.1O7.9 sample being synthesized by high-pressure high-temperature solid-state reaction underwent (weak) ferromagnetic transition at 150 K followed by superconducting transition at 30 K. It showed clear Meissner signal in the…

Superconductivity · Physics 2007-05-23 V. P. S. Awana , T. Kawashima , E. Takayama-Muromachi

A detailed study of the effect caused by the partial substitution of Ru by Ir on the magnetic and superconducting properties of the ruthenocuprate Ru(1-x)Ir(x)Sr2GdCu2o8; 0 <= x <= 0.10; is presented. The combined experimental results of…

Superconductivity · Physics 2007-05-23 A. R. Jurelo , S. Andrade , R. F. Jardim , F. C. Fonseca , M. S. Torikachvili , A. H. Lacerda , L. Ben-Dor

A heavy-mass electron state is realized in a doped valence bond solid (Ti1-xVx)2O3. In this system, itinerant holes mediate the mainly ferromagnetic RKKY interaction between the localized magnetic moments and become readily spin-polarized…

Strongly Correlated Electrons · Physics 2015-05-27 M. Uchida , Y. Onose , Y. Tokura

We have performed the powder neutron diffraction measurements on the solid solutions of SrRu_{1-x}Mn_xO_3, and found that the itinerant ferromagnetic order observed in pure SrRuO_3 changes into the C-type antiferromagnetic (AF) order with…

Strongly Correlated Electrons · Physics 2007-05-23 M. Yokoyama , C. Satoh , A. Saitou , H. Kawanaka , H. Bando , K. Ohoyama , Y. Nishihara

The magnetic and electrical properties of high quality single crystals of $A$-site disordered (solid solution) Ln$_{0.5}$Ba$_{0.5}$MnO$_3$ are investigated near the phase boundary between the spin glass insulator and…

Materials Science · Physics 2009-11-10 R. Mathieu , D. Akahoshi , A. Asamitsu , Y. Tomioka , Y. Tokura

This article presents the results of several magnetic phases of doped La$_{2-x}$Sr$_x$CuO$_4$ using density-functional theory with an added Hubbard term (DFT+U). Doping factors from $x=0$ to 0.25 were examined. We found that a bond centered…

Superconductivity · Physics 2015-05-28 Simon Pesant , Michel Côté

Magnetic excitations in the optimally doped high-$T_\mathrm{c}$ superconductor Bi$_{1.5}$Pb$_{0.55}$Sr$_{1.6}$La$_{0.4}$CuO$_{6+\delta}$ (OP-Bi2201, $T_\mathrm{c}\simeq 34$ K) are investigated by Cu $L_3$ edge resonant inelastic x-ray…

We report on structural, magnetic, dielectric, and thermodynamic properties of (Eu:Y)MnO3 for Y doping levels 0 <= x < 1. This system resembles the multiferroic perovskite manganites RMnO3 (with R= Gd, Dy, Tb) but without the interference…

Strongly Correlated Electrons · Physics 2015-06-25 J. Hemberger , F. Schrettle , A. Pimenov , P. Lunkenheimer , V. Yu. Ivanov , A. A. Mukhin , A. M. Balbashov , A. Loidl

Polycrystalline YMn1-xFexO3 (YMFO_x) (0 <= x <= 0.1) compounds have been prepared in single phase and characterized by synchrotron X-ray diffraction, X-ray absorption near edge spectroscopy, magnetization, and dielectric measurements.…

Materials Science · Physics 2017-07-26 Sonu Namdeo , A. K. Sinha , M. N. Singh , A. M. Awasthi

We report predominantly zero field muon spin relaxation measurements in a series of Ca-doped LaMnO_3 compounds which includes the colossal magnetoresistive manganites. Our principal result is a systematic study of the spin-lattice…

Strongly Correlated Electrons · Physics 2009-10-31 R. H. Heffner , J. E. Sonier , D. E. MacLaughlin , G. J. Nieuwenhuys , G. M. Luke , Y. J. Uemura , S-W. Cheong , G. Balakrishnan

Doping Kondo lattice system CeRu2Si2 with Rh-8% (Ce(Ru0.92Rh0.08)2Si2) leads to drastic consequences due to the mismatch of the lattice parameters between CeRu2Si2 and CeRh2Si2. A large variety of experiments clarifies the unusual…

Systematical doping studies have been carried out to search for the possible superconductivity in the transition metal doped Zr$_5$Ge$_3$ system. Superconductivity up to 5.7K is discovered in the Ru-doped Zr$_5$Ge$_{2.5}$Ru$_{0.5}$ sample.…

Superconductivity · Physics 2018-02-14 Sheng Li , Xiaoyuan Liu , Varun Anand , Bing Lv

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