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Recently, the iridate double perovskite Sr$_2$YIrO$_6$ has attracted considerable attention due to the report of unexpected magnetism in this Ir$^{5+}$ (5d$^4$) material, in which according to the J$_{eff}$ model, a non-magnetic ground…

A new perovskite KOsO3 has been stabilized under high-pressure and high temperature conditions. It is cubic at 500 K (Pm-3m) and undergoes subsequent phase transitions to tetragonal at 320 K (P4/mmm) and rhombohedral (R-3m) at 230 K as…

Low-temperature powder neutron diffraction measurements are performed in the ordered magnetic state of the pyrochlore antiferromagnet Gd2Sn2O7. Symmetry analysis of the diffraction data indicates that this compound has the ground state…

The pyrochlore iridates, A$_2$Ir$_2$O$_7$, show a wide variety of structural, electronic, and magnetic properties controlled by the interplay of different exchange interactions, which can be tuned by external pressure. In this work, we…

Materials Science · Physics 2024-05-14 M Rosalin , K. A. Irshad , Boby Joseph , Prachi Telang , Surjeet Singh , D. V. S. Muthu , A. K. Sood , .

Tb2Ti2O7, a pyrochlore system, has garnered significant interest due to its intriguing structural and physical properties and their dependence on external physical parameters. In this study, utilizing high-brilliance synchrotron X-ray…

The electronic transport properties and the magnetic susceptibility were measured in detail in $YBaCo_2O_{5.45}$. Close to the so-called metal-insulator transition, strong effects of resistance relaxation, a clear thermal hysteresis and a…

Materials Science · Physics 2009-11-13 A. Pautrat , P. Boullay , S. Hebert , V. Caignaert

Muon spin relaxation measurements on Bi2Ir2O7 show that it undergoes a bulk magnetic transition at 1.84(3) K. This is accompanied by increases in the muon spin relaxation rate and the amplitude of the non-relaxing part of the signal. The…

Strongly Correlated Electrons · Physics 2013-06-13 P. J. Baker , J. S. Moeller , F. L. Pratt , W. Hayes , S. J. Blundell , T. Lancaster , T. F. Qi , G. Cao

We present neutron diffraction analysis of BaFe$_2$(As$_{1-x}$P$_x$)$_2$ over a wide temperature (10 to 300 K) and compositional ($0.11 \leq x \leq 0.79$) range, including the normal state, the magnetically ordered state, and the…

Analysis of neutron diffraction, dc magnetization, ac magnetic susceptibility, heat capacity, and electrical resistivity for DyRuAsO in an applied magnetic field are presented at temperatures near and below those at which the structural…

Strongly Correlated Electrons · Physics 2015-06-22 Michael A. McGuire , V. Ovidiu Garlea , Andrew F. May , Brian C. Sales

We present an experimental study of the pyrochlore coumpound Nd2Zr2O7 by means of neutron scattering and magnetization measurements down to 90 mK. The Nd$^{3+}$ magnetic moments exhibit a strong local $\langle$111$\rangle$ Ising anisotropy…

Strongly Correlated Electrons · Physics 2016-01-05 E. Lhotel , S. Petit , S. Guitteny , O. Florea , M. Ciomaga Hatnean , C. Colin , E. Ressouche , M. R. Lees , G. Balakrishnan

We suceeded in the preparation of polycrystalline Ca_2FeReO_6 which has a Curie temperature of 540 K, the highest value of all magnetic perovskites investigated up to now. This material has been characterised by X-ray and neutron powder…

Materials Science · Physics 2007-05-23 W. Westerburg , O. Lang , C. Felser , W. Tremel , M. Waldeck , F. Renz , P. Guetlich , C. Ritter , G. Jakob

We have grown a YCrO$_3$ single crystal by the floating-zone method and studied its temperature-dependent crystalline structure and magnetization by X-ray powder diffraction and PPMS DynaCool measurements. All diffraction patterns were well…

Strongly Correlated Electrons · Physics 2024-03-08 Qian Zhao , Yinghao Zhu , Si Wu , Junchao Xia , Pengfei Zhou , Kaitong Sun , Hai-Feng Li

The interplay between spin-orbit coupling (SOC) and electron correlation ($U$) is considered for many exotic phenomena in iridium oxides. We have investigated the evolution of structural, magnetic and electronic properties in pyrochlore…

Strongly Correlated Electrons · Physics 2017-03-08 Harish Kumar , R. S. Dhaka , A. K. Pramanik

We report on the results of powder and single crystal neutron diffraction to investigate the magnetic order in YbCo$_2$Si$_2$ below the N\'eel temperature $T_{\rm N} = 1.7~$K in detail. Two different magnetically ordered phases can clearly…

Strongly Correlated Electrons · Physics 2016-08-03 N. Mufti , K. Kaneko , A. Hoser , M. Gutmann , C. Geibel , C. Krellner , O. Stockert

A detailed investigation of Ba$_2$MnGe$_2$O$_7$ was performed in its low-temperature magnetoelectric state combining neutron diffraction with magnetization measurements on single crystals. In the paramagnetic state at 10 K, polarized…

Strongly Correlated Electrons · Physics 2023-03-07 A. Sazonov , H. Thoma , R. Dutta , M. Meven , A. Gukasov , R. Fittipaldi , V. Granata , T. Masuda , B. Náfrádi , V. Hutanu

Neutron powder diffraction measurements, combined with magnetization and resistivity data, have been carried out in the doped perovskite La$_{1-x}$Ca$_x$MnO$_3$ ($x=0.47$, 0.50, and 0.53) to elucidate the structural, magnetic, and…

Strongly Correlated Electrons · Physics 2009-10-31 Q. Huang , J. W. Lynn , R. W. Erwin , A. Santoro , D. C. Dender , V. N. Smolyaninova , K. Ghosh , R. L. Greene

We report the low temperature magnetic properties of Nd$^{3+}$ pyrochlore $\rm Nd_2ScNbO_7$. Susceptibility and magnetization show an easy-axis moment, and heat capacity reveals a phase transition to long range order at $T_N=371(2)$ mK with…

Strongly Correlated Electrons · Physics 2022-08-11 A. Scheie , M. Sanders , Yiming Qiu , T. R. Prisk , R. J. Cava , C. Broholm

The thermodynamic properties of the pyrochlore Yb2Ti2O7 material are calculated using the numericallinked-cluster (NLC) calculation method for an effective anisotropic-exchange spin-1/2 Hamiltonian with parameters recently determined by…

Strongly Correlated Electrons · Physics 2014-04-11 N. R. Hayre , K. A. Ross , R. Applegate , T. Lin , R. R. P. Singh B. D. Gaulin , M. J. P. Gingras

We report measurements performed on a polycrystalline sample of the pyrochlore compound Nd2Sn2O7. It undergoes a second order magnetic phase transition at Tc ~ 0.91 K to a noncoplanar all-in-all-out magnetic structure of the Nd3+ magnetic…

Strongly Correlated Electrons · Physics 2015-11-04 A. Bertin , P. Dalmas de Reotier , B. Fak , C. Marin , A. Yaouanc , A. Forget , D. Sheptyakov , B. Frick , C. Ritter , A. Amato , C. Baines , P. J. C. King

The temperature dependence of the structural and magnetic properties of wolframite-type FeWO4 were studied in situ by high pressure neutron diffraction. Neutron diffraction measurements were performed at the XtremeD instrument at the…

Materials Science · Physics 2026-04-13 Oscar Fabelo , Javier Gonzalez-Platas , Stanislav Savvin , Pablo Botella , Daniel Errandonea