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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…

This report presents azimuthal dependent and polarisation dependent x-ray resonant magnetic scattering at the Ir L3 edge for the bilayered iridate compound, Sr3Ir2O7. Two magnetic wave vectors, k1=(1/2,1/2,0) and k2=(1/2,-1/2,0), result in…

Strongly Correlated Electrons · Physics 2012-08-31 S. Boseggia , R Springell , H C Walker , A T Boothroyd , D Prabhakaran , S P Collins , D F McMorrow

The 5$d$ based SrIrO$_3$ represents prototype example of nonmagnetic correlated metal which mainly originates from a combined effect of spin-orbit coupling, lattice dimensionality and crystal structure. Therefore, tuning of these parameters…

Strongly Correlated Electrons · Physics 2021-02-24 Rachna Chaurasia , K. Asokan , Kranti Kumar , A. K. Pramanik

Neutron diffraction studies have been carried out on a single crystal of oxygen-deficient perovskite TbBaCo2O5.5 in the temperature range of 7-370 K. There have been observed several magnetic or structural transitions. Among these, the…

Strongly Correlated Electrons · Physics 2009-11-10 Minoru Soda , Yukio Yasui , Toshiaki Fujita , Takeshi Miyashita , Masatoshi Sato , Kazuhisa Kakurai

We report low-temperature muon spin relaxation/rotation (muSR) measurements on single crystals of the actinide superconductor UTe2. Below 5 K we observe a continuous slowing down of magnetic fluctuations that persists through the…

We have measured resonant soft x-ray diffuse magnetic scattering as a function of temperature in a positively exchange biased Co/FeF2 bilayer and analyzed the data in the distorted wave Born approximation to obtain in-plane charge and…

Materials Science · Physics 2012-03-16 X. Lu , S. Roy , E. Blackburn , Mikhail Erekhinsky , Ivan K. Schuller , J. B. Kortright , S. K. Sinha

X-ray magnetic critical scattering measurements and specific heat measurements were performed on the perovskite iridate Sr$_3$Ir$_2$O$_7$. We find that the magnetic interactions close to the N\'{e}el temperature $T_N$ = 283.4(2) K are…

Strongly Correlated Electrons · Physics 2019-03-27 J. G. Vale , S. Boseggia , H. C. Walker , R. S. Springell , E. C. Hunter , R. S. Perry , S. P. Collins , D. F. McMorrow

The antiferromagnetic structure of Sr3Ir2O7, the bilayer analogue of a spin-orbital Mott insulator Sr2IrO4, was revealed by resonant magnetic x-ray diffraction. Contrasting intensities of the magnetic diffraction at the Ir LIII and LII…

Strongly Correlated Electrons · Physics 2015-06-05 Shigeki Fujiyama , K. Ohashi , H. Ohsumi , K. Sugimoto , T. Takayama , T. Komesu , M. Takata , T. Arima , H. Takagi

We report muon spin relaxation and inelastic neutron measurements on the Heusler system YbPd$_2$Sn. Localised anisotropic and quasi-elastic Yb magnetic fluctuations are observed below $T = 150$K. Both $\mu$SR and neutron data indicate a…

Strongly Correlated Electrons · Physics 2009-11-07 A. Amato , B. Roessli , P. Fischer , N. Bernhoeft , A. Stunault , C. Baines , A. Dönni , H. Sugawara

Low temperature properties of BaZrO3 are revealed by combining experimental techniques (X-ray diffraction, neutron scattering and dielectric measurements) with theoretical first-principles-based methods (total energy and linear response…

Materials Science · Physics 2009-11-11 A. R. Akbarzadeh , I. Kornev , C. Malibert , L. Bellaiche , J. M. Kiat

We report $^{75}$As nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) studies on the superconductor Rb$_{2}$Cr$_{3}$As$_{3}$ with a quasi one-dimensional crystal structure. Below $T\sim$ 100 K, the spin-lattice…

Superconductivity · Physics 2015-10-07 J. Yang , Z. T. Tang , G. H. Cao , Guo-qing Zheng

Neutron scattering can provide detailed information about the energy and momentum dependence of the magnetic dynamics of materials provided sufficiently large single crystals are available. This requirement has limited the number of rare…

Strongly Correlated Electrons · Physics 2007-05-23 T. E. Mason

Heat and charge conduction were measured in the heavy-fermion metal CeRhIn5, an antiferromagnet with T_N=3.8 K. The thermal resistivity is found to be proportional to the magnetic entropy, revealing that spin fluctuations are as effective…

A thermodynamic and transport study of Sr4Ru3O10 as a function of temperature and magnetic field is presented. The central results include a growing specific heat C with increasing field B, a magnetic contribution to C/T at low temperatures…

Strongly Correlated Electrons · Physics 2009-11-13 G. Cao , S. Chikara , J. W. Brill , Schlottmann

The resistivity in the ferromagnetic state of flux-grown La_{2/3}(Pb,Ca)_{1/3}MnO_3 single crystals, measured in magnetic fields up to 7 T, reveals a strong quadratic temperature dependence at and above 50 K. At lower temperatures, this…

Strongly Correlated Electrons · Physics 2009-10-30 M. Jaime , P. Lin , M. B Salamon , P. Han

The tri-layered perovskite Sr4Rh3O10 is reported for the first time. High-pressure and high-temperature heating (6 GPa and 1500 C) brought about successful preparation of a polycrystalline sample of the expected member at n=3 of…

Strongly Correlated Electrons · Physics 2007-05-23 K. Yamaura , Q. Huang , D. P. Young , E. Takayama-Muromachi

Spin correlations in the pyrochlore antiferromagnet Y_2Ru_2O_7 with Curie-Weiss temperature $\Theta_{CW}=-1100$ K and critical temperature T_N=77 K were examined through neutron scattering. For $T_N<T<\Theta_{CW}/3$ the data show spin…

Strongly Correlated Electrons · Physics 2014-07-03 J. van Duijn , N. Hur , J. W. Taylor , Y. Qiu , Q. Z. Huang , S. -W. Cheong , C. Broholm , T. G. Perring

The evolution of the magnetic ordering temperature of the 4d3 perovskites RTcO3 (R=Ca,Sr,Ba) and its relation with its electronic and structural properties has been studied by means of hybrid density functional theory and Monte Carlo…

Strongly Correlated Electrons · Physics 2015-05-27 C. Franchini , T. Archer , J. He , X. -Q. Chen , A. Filippetti , S. Sanvito

The magnetic ground state of double perovskite Sr2DyRuO6 has been investigated using muon spin rotation and relaxation (muSR), neutron powder diffraction (NPD) and inelastic neutron scattering (INS), in addition to heat capacity and…

Strongly Correlated Electrons · Physics 2020-03-19 D. T. Adroja , Shivani Sharma , C. Ritter , A. D. Hillier , C. V. Tomy , R. Singh , R. I. Smith , M. Koza , A. Sundaresan , S. Langridge

The complex perovskite oxide SrRuO3 shows intriguing transport properties at low temperatures due to the interplay of spin, charge, and orbital degrees of freedom. One of the open questions in this system is regarding the origin and nature…

Mesoscale and Nanoscale Physics · Physics 2014-11-13 Gopi Nath Daptary , Chanchal Sow , P. S. Anil Kumar , Aveek Bid