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Bilayered Sr3Ru2O7 is an unusual metamagnetic metal with inherently antiferromagnetic (AFM) and ferromagnetic (FM) fluctuations. Partial substitution of Ru by Mn results in the establishment of metal-insulator transition (MIT) at TMIT and…

Strongly Correlated Electrons · Physics 2017-06-14 Qiang Zhang , Feng Ye , Wei Tian , Huibo Cao , Songxue Chi , Biao Hu , Zhenyu Diao , David A. Tennant , Rongying Jin , Jiandi Zhang , Ward Plummer

Several decades after the discovery of superconductivity in bismuthates, the strength of their electron-phonon coupling and its evolution with doping remain puzzling. To clarify these issues, polycrystalline hole-doped…

Superconductivity · Physics 2020-01-16 T. Shang , D. J. Gawryluk , M. Naamneh , Z. Salman , Z. Guguchia , M. Medarde , M. Shi , N. C. Plumb , T. Shiroka

We report a comprehensive investigation of La0.2Pr0.4Ca0.4MnO3 to clarify the micrometre scale phase separation phenomenon in the mixed valent manganite (La,Pr,Ca)MnO3. The compound shows multiple magnetic transitions, in which the…

Materials Science · Physics 2020-03-18 Deepak Kumar , Ashwin A. Tulapurkar , C. V. Tomy

The magnetic compensation and magnetostriction properties in Fe doped CoCr2O4 samples have been investigated. Structural and magnetic measurements imply that the doped Fe3+ ions initially occupy the B1(Cr) sites when x<0.1, and then mainly…

Materials Science · Physics 2012-11-30 Hongguo Zhang , Wenghong Wang , Enke Liu , Xiaodan Tang , Guijiang Li , Hongwei Zhang , Guangheng Wu

Core-level spectra of the Mn-doped Sr3Ru2O7 and Srn+1RunO3n+1 (n = 1, 2 and 3) crystals are investigated with X-ray photoelectron spectroscopy. Doping of Mn to Sr3Ru2O7 considerably affects the distribution of core-level spectral weight.…

Strongly Correlated Electrons · Physics 2015-05-18 Haizhong Guo , Yi Li , Darwin Urbina , Biao Hu , Rongying Jin , Tijiang Liu , David Fobes , Zhiqiang Mao , E. W. Plummer , Jiandi Zhang

The significance of the spin-orbit interaction is very well known in compounds containing heavier elements such as the rare-earth Eu ion. Here, through density functional calculations, we investigated the effect of the spin-orbit…

Neutron scattering has been used to investigate the evolution of the long- and short-range charge-ordered (CO), ferromagnetic (FM), and antiferromagnetic (AF) correlations in single crystals of Pr1-xCaxMnO3. The existence and population of…

Strongly Correlated Electrons · Physics 2009-11-13 Hao Sha , F. Ye , Pengcheng Dai , J. A. Fernandez-Baca , D. Mesa , J. W. Lynn , Y. Tomioka , Y. Tokura , Jiandi Zhang

Single crystals of Ba(Fe$_{1-x}$Ru$_x$)$_2$As$_2$, $x<0.37$, have been grown and characterized by structural, magnetic and transport measurements. These measurements show that the structural/magnetic phase transition found in pure…

Superconductivity · Physics 2015-05-19 A. Thaler , N. Ni , A. Kracher , J. Q. Yan , S. L. Bud'ko , P. C. Canfield

We present a comprehensive set of elastic and inelastic neutron scattering measurements on a range of Fe-doped samples of U(Ru$_{1-x}$Fe$_x$)$_2$Si$_2$ with 0.01~$\le~x~\le$~0.15. All of the samples measured exhibit long-range…

Strongly Correlated Electrons · Physics 2017-05-15 T. J. Williams , M. N. Wilson , A. A. Aczel , M. B. Stone , G. M. Luke

Density functional methods have been used to study the crystal, electronic and magnetic structures of new ordered double perovskites A2NRuO6 (A2 = Ba2, BaLa; N = V, Cr, Fe). In the doped compounds, the A-site was replaced by 1:1 of Ba and…

Materials Science · Physics 2019-12-17 M. Musa Saad H. -E.

Effect of Co, Ru and Cu substitution at B and B' sites on the magnetic and transport properties of LaSrCoRuO$_6$ have been investigated. All the doped compositions crystallize in the monoclinic structure in the space group $P2_1/n$…

Strongly Correlated Electrons · Physics 2010-11-12 P. S. Ramu Murthy , K. R. Priolkar , P. A. Bhobe , A. Das , P. R. Sarode , A. K. Nigam

We present a detailed investigation of the specific heat in Ca$_3$(Ru$_{1-x}M_x$)$_2$O$_7$ ($M$ = Ti, Fe, Mn) single crystals. With different dopants and doping levels, three distinct regions are present, including a quasi-2D metallic state…

Strongly Correlated Electrons · Physics 2018-10-02 Jin Peng , X. M. Gu , G. T. Zhou , W. Wang , J. Y. Liu , Yu Wang , Z. Q. Mao , X. S. Wu , Shuai Dong

As a prototypical half-metallic ferromagnet, La0.67Sr0.33MnO3 (LSMO) has been extensively studied due to its versatile physical properties and great potential in spintronic applications. However, the weak perpendicular magnetic anisotropy…

Materials Science · Physics 2023-08-02 Enda Hua , Kunjie Dai , Qing Wang , Huan Ye , Kuan Liu , Jinfeng Zhang , Jingdi Lu , Kai Liu , Feng Jin , Lingfei Wang , Wenbin Wu

The synthesis of SrRuO3 under high-pressure oxygen produces a nonstoichiometric form with randomly distributed vacancies on the Ru-sites, along with a significantly reduced ferromagnetic ordering temperature. In order to gain additional…

We report inelastic neutron scattering experiments on the doping dependence of the energy and spectral weight of the sharp magnetic resonance peak in YBa_2 Cu_3 O_{6+x}. These measurements also shed light on the relationship between the…

Condensed Matter · Physics 2009-10-30 B. Keimer , H. F. Fong , S. H. Lee , D. L. Milius , I. A. Aksay

Transport and magnetic studies of Ca3Ru2O7 for temperatures ranging from 0.4 K to 56 K and magnetic fields, B, up to 45 T leads to strikingly different behavior when the field is applied along the different crystal axes. A ferromagnetic…

Strongly Correlated Electrons · Physics 2009-11-11 X. N. Lin , Z. X. Zhou , V. Durairaj , P. Schlottmann , G. Cao

The interplay between superconductivity and Eu$^{2+}$ magnetic ordering in Eu(Fe$_{1-x}$Ir$_{x}$)$_{2}$As$_{2}$ is studied by means of electrical transport and magnetic measurements. For the critically doped sample…

Superconductivity · Physics 2013-06-11 U. B. Paramanik , Debarchan Das , R. Prasad , Z. Hossain

We carried out temperature and field dependent magnetic measurements to understand the evolution of magnetic non-collinearity near antiferromagnetic phase in conjunction with the evolution of magnetic entropy near phase transition. We…

Strongly Correlated Electrons · Physics 2019-08-20 Brajesh Tiwari , Ambesh Dixit , M. S. Ramachandra Rao

We present the results from a magnetization, structural, and nuclear quadrupole resonance study of the ruthenate-cuprate, RuSr2R2-xCexCu2O10+d with x=1 and R=Eu. This compound is a superconductor for Ce doping in the range 0.4<=x<=0.8 and…

Superconductivity · Physics 2007-05-23 G. V. M. Williams , A. C. McLaughlin , J. P. Attfield , S. Kramer , Ho Keun Lee

We have investigated the magnetism and the superconductivity of an electron-doped Pr$_{1-x}$LaCe$_{x}$CuO$_{4}$ (PLCCO) using single crystal and powder samples by means of zero-field muon spin rotation/relaxation (ZF-$\mu$SR) and magnetic…

Superconductivity · Physics 2009-11-07 M. Fujita , T. Kubo , S. Kuroshima , T. Uefuji , K. Kawashima , K. Yamada , I. Watanabe , K. Nagamine