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The effect of Pr-doping on structural, magnetic and transport properties in electron-doped manganites La0.9-xPrxTe0.1MnO3 with fixed carrier concentration are investigated. The room temperature structural transition from rhombohedral (R3C)…

Strongly Correlated Electrons · Physics 2009-11-10 J. Yang , W. H. Song , Y. Q. Ma , R. L. Zhang , B. C. Zhao , Z. G. Sheng , G. H. Zheng , J. M. Dai , Y. P. Sun

Neutron diffraction studies as a function of temperature on solid solutions of MnSe and MnTe in the Se rich region are presented. Interestingly as Te is doped in MnSe, the structural transformation to NiAs phase diminishes, both in terms of…

Materials Science · Physics 2014-10-27 Kapil E. Ingle , J. B. C. Efrem D'Sa , A. Das , K. R. Priolkar

We have performed high resolution x-ray scattering measurements on single crystal samples of Ba(Fe(1-x)Cr(x))2As2 (x = 0 to 0.335). These measurements examine the effect of Cr-doping on the high temperature tetragonal (I4/mmm) to low…

Strongly Correlated Electrons · Physics 2012-03-06 J. P. Clancy , B. D. Gaulin , A. S. Sefat

A neutron scattering study of nonsuperconducting La$_{2-x}$Sr$_x$CaCu$_2$O$_6$ (x=0 and 0.2), a bilayer copper oxide without CuO chains, has revealed an unexpected tetragonal-to-orthorhombic transition with a doping dependent transition…

Superconductivity · Physics 2009-11-07 C. Ulrich , S. Kondo , M. Reehuis , H. He , C. Bernhard , C. Niedermayer , F. Bouree , P. Bourges , M. Ohl , H. M. Ronnow , H. Takagi , B. Keimer

The magnetic structures and the magnetic phase transitions in the Mn-doped orthoferrite TbFeO$_3$ studied using neutron powder diffraction are reported. Magnetic phase transitions are identified at $T^\mathrm{Fe/Mn}_N \approx$ 295~K where a…

Strongly Correlated Electrons · Physics 2016-02-17 Harikrishnan S. Nair , Tapan Chatterji , C. M. N. Kumar , T. Hansen , Hariharan Nhalil , Suja Elizabeth , A. M. Strydom

The electrocaloric properties of BaTiO$_3$-based lead-free ferroelectric materials have been widely investigated. One approach to achieving a large electrocaloric response is to exploit the substantial polarization change associated with…

Materials Science · Physics 2025-07-11 M. Karakaya , I. Gurbuz , L. Fulanovic , U. Adem

The structural and magnetic properties of YVO3, NdVO3 and TbVO3 were investigated by single-crystal and powder neutron diffraction. YVO3 shows a structural phase transition at 200 K from an orthorhombic structure with the space group Pbnm…

Strongly Correlated Electrons · Physics 2009-11-11 M. Reehuis , C. Ulrich , P. Pattison , B. Ouladdiaf , M. C. Rheinstadter , M. Ohl , L. P. Regnault , M. Miyasaka , Y. Tokura , B. Keimer

We present a comprehensive magnetic and structural phase diagram for $\mathrm{Y_{1-x}Lu_xBaCo_4O_7}$, established through neutron diffraction and magnetization measurements. Our results outline the evolution of various nuclear structures,…

Strongly Correlated Electrons · Physics 2023-12-08 Sevda Sahinbay , Hong Zheng , John F. Mitchell , Stephan Rosenkranz , Omar Chmaissem

The perovskite oxide EuTiO3 (ETO) has attracted increased scientific interest due to its potential multiferroic properties and magnetic activity above and below its structural phase transition at TS=282K. Various experiments have indirectly…

We have successfully induced multiferroic behavior in the A-type antiferromagnet SmMnO3 by the substitution of Y at the Sm site. A magnetic transition develops at 24 K for Sm1-xYxMnO3 (x=0.4,0.5) which is not present in the parent compound.…

Strongly Correlated Electrons · Physics 2011-05-17 D. O'Flynn , C. V. Tomy , M. R. Lees , A. Daoud-Aladine , G. Balakrishnan

The structure of Nd$_{1-x}$Pb$_{x}$MnO$_{3}$ crystals is determined by single crystal X-ray diffraction. Substitution of Pb at the Nd site results in structural phase change from tetragonal (x = 0.25) to cubic (x = 0.37). These changes are…

Strongly Correlated Electrons · Physics 2007-05-23 Nilotpal Ghosh , Suja Elizabeth , H. L. Bhat , G. Nalini , B. Muktha , T. N. Guru Row

The article addresses the possibility of alloy elements in MnBi which may modify the thermodynamic stability of the NiAs-type structure without significantly degrading the magnetic properties. The addition of small amounts of Rh and Mn…

We use neutron resonance spin echo and Larmor diffraction to study the effect of uniaxial pressure on the tetragonal-to-orthorhombic structural ($T_s$) and antiferromagnetic (AF) phase transitions in iron pnictides…

We investigate the effect of Ni doping on the Fe-site in single crystals of the magnetic superconductor RbEuFe$_4$As$_4$ for doping concentrations of up to 4%. A clear suppression in the superconducting transition temperature is observed in…

Superconductivity · Physics 2020-02-19 K. Willa , M. P. Smylie , Y. Simsek , J. -K. Bao , D. Y. Chung , M. G. Kanatzidis , W. -K. Kwok , U. Welp

We use neutron scattering to study the structural and magnetic phase transitions in the iron pnictides CeFeAsO1-xFx as the system is tuned from a semimetal to a high-transition-temperature (high-Tc) superconductor through Fluorine (F)…

We present a comprehensive study of the mixed valent compound, EuPd3S4, by electrical transport, X-ray diffraction, time-domain 151Eu synchrotron M\"ossbauer spectroscopy, and X-ray absorption spectroscopy measurements under high pressure.…

Strongly Correlated Electrons · Physics 2024-01-09 S. Huyan , D. H. Ryan , T. J. Slade , B. Lavina , G. C. Jose , H. Wang , J. M. Wilde , R. A. Ribeiro , J. Zhao , W. Xie , W. Bi , E. E. Alp , S. L. Bud'ko , P. C. Canfield

Two magnetic ordering transitions are found in InMnO3, the paramagnetic to antiferromagnetic transition near ~118 K and a lower possible spin rotation transition near ~42 K. Multiple length scale structural measurements reveal enhanced…

Materials Science · Physics 2015-06-22 T. Yu , T. A. Tyson , P. Gao , T. Wu , X. Hong , S. Ghose , Y. -S. Chen

The present work reports synthesis, as well as a detailed and careful characterization of structural, magnetic, and dielectric properties of differently tempered undoped and doped CaCu3Ti4O12 (CCTO) ceramics. For this purpose, neutron and…

Materials Science · Physics 2010-01-22 S. Krohns , J. Lu , P. Lunkenheimer , V. Brize , C. Autret-Lambert , M. Gervais , F. Gervais , F. Bouree , F. Porcher , A. Loidl

We report on the evolution of the magnetic structure of BiFeO3 thin films grown on SrTiO3 substrates as a function of Sm doping. We determined the magnetic structure using neutron diffraction. We found that as Sm increases, the magnetic…

BaPb$_{1-x}$Bi$_x$O$_3$ is found to exhibit a field-tuned superconductor to insulator transition for Bi compositions 0.24 $\leq x \leq$ 0.29. The magnetoresistance of optimally doped samples manifests a temperature-independent crossing…

Superconductivity · Physics 2012-05-09 P. Giraldo-Gallo , H. Lee , Y. Zhang , M. J. Kramer , M. R. Beasley , T. H. Geballe , I. R. Fisher