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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 antiferromagnetic order and structural distortion in the LaFe(As1-xSbx)O system have been investigated by powder neutron diffraction and physical properties measurements. Polycrystalline samples of LaFe(As1-xSbx)O (x<0.5) were prepared…

We take advantage of the site-selective nature of the $^{75}$As and $^{63}$Cu NMR techniques to probe the Cu substitution effects on the local magnetic properties of the FeAs planes in Ba(Fe$_{1-x}$Cu$_x$)$_2$As$_2$. We show that the…

Superconductivity · Physics 2015-11-09 H. Takeda , T. Imai , M. Tachibana , J. Gaudet , B. D. Gaulin , B. I. Saparov , A. S. Sefat

Effects of the Co substitution have been observed on the structural, magnetic and magneto-transport properties of Fe2-xCoxMnSi alloy. Curie temperature (TC) and saturation magnetization (MS) of these alloys increased linearly with the Co…

Strongly Correlated Electrons · Physics 2015-12-01 Lakhan Bainsla , K. G. Suresh , M. Manivel Raja , A. K. Nigam

Oxides with $4d$/$5d$ transition metal ions are physically interesting for their particular crystalline structures as well as the spin-orbit coupled electronic structures. Recent experiments revealed a series of $4d$/$5d$ transition metal…

Materials Science · Physics 2017-01-27 Bin Gao , Yakui Weng , Jun-Jie Zhang , Huimin Zhang , Yang Zhang , Shuai Dong

Experimental studies of Zn1-xCoxO as thin films or nanocrystals have found ferromagnetism and Curie temperatures above room temperature and that p- or n-type doping of Zn1-xCoxO can change its magnetic state. Bulk Zn1-xCoxO with a low…

Materials Science · Physics 2013-05-29 Charles H. Patterson

The crystal structures of the triangular lattice, layered anhydrous alums KCr(SO4)2, RbCr(SO4)2 and KAl(SO4)2 are characterized by X-ray and neutron powder diffraction at temperatures between 1.4 and 773 K. The compounds all crystallize in…

Materials Science · Physics 2009-02-24 D. V. West , Q. Huang , H. W. Zandbergen , T. M. McQueen , R. J. Cava

The effects of Ni$^{2+}$ substitution on the structure (lattice parameters, cations distribution, average cations radii, cation-cation/anion bond lengths and angles) and the soft magnetic properties of Mg$_{1-x}$Ni$_x$Fe$_2$O$_4$ ($0 \le x…

Materials Science · Physics 2022-03-09 M. A. Kassem , A. Abu El-Fadl , A. M. Hassan , A. M. Gismelssed , H. Nakamura

A comprehensive study of thermodynamic properties of three samples of bimetallic molecular magnets [Co$^{\mathrm{II}}$(pyrazole)$_{4}$]$_{2x}$[Fe$^{\mathrm{II}}$(pyrazole)$_{4}$]$_{2(1-x)}$[Nb$^{\mathrm{IV}}$(CN)$_{8}$]$\cdot$4H$_{2}$O with…

Materials Science · Physics 2021-12-21 R. Pełka , P. Konieczny , Y. Miyazaki , Y. Nakazawa , T. Wasiutyński , A. Budziak , D. Pinkowicz , B. Sieklucka

By means of powder neutron diffraction we investigate changes in the magnetic structure of the coplanar non-collinear antiferromagnet Mn$_3$Ge caused by an application of hydrostatic pressure up to 5\phantom{ }GPa. At ambient conditions the…

Strongly Correlated Electrons · Physics 2018-06-05 A. S. Sukhanov , Sanjay Singh , L. Caron , Th. Hansen , A. Hoser , V. Kumar , H. Borrmann , A. Fitch , P. Devi , K. Manna , C. Felser , D. S. Inosov

Realistic, first-principles-based interatomic potentials have been used in molecular dynamics simulations to study the effect of cation composition on the ionic conductivity in the Zr2Y2O7-Y3NbO7 system and to link the dynamical properties…

Chemical Physics · Physics 2009-09-09 Dario Marrocchelli , Paul A Madden , Stefan T Norberg , Stephen Hull

Several doped 6H hexagonal ruthenates, having the general formula Ba3MRu2O9, have been studied over a significant period of time in order to understand the unusual magnetism of ruthenium metal. However, among them, the M=Fe compound appears…

The short and medium range structure of a NaFeSi2O6 (NFS) glass has been investigated by high-resolution neutron diffraction with Fe isotopic substitution, combined with Empirical Potential Structure Refinement (EPSR) simulations. The…

Materials Science · Physics 2009-11-13 Coralie Weigel , L. Cormier , Georges Calas , Laurence Galoisy , Daniel Bowron

We report the effect of Ba and Zr co-substitution on structural, dielectric, magnetic and magnetoelectric properties of BiFeO3 multiferroics. Polycrystalline nanoceramic samples of Bi1- xBaxFe1-yZryO3 have been synthesized by…

Materials Science · Physics 2019-09-17 Satya Tripathy , Dhiren Pradhan , S Sen , BG Mishra , R Palai , JF Scott , R. S. Katiyar , Dillip pradhan

The structural and magnetic properties of Ge0.5Mn0.5Co2O4 (GMCO) have been investigated in detail utilizing neutron powder diffraction (NPD), x-ray diffraction (XRD), DC magnetometry, and heat capacity analysis and compared with GeCo2O4.…

Strongly Correlated Electrons · Physics 2024-07-02 Pooja Jain , Benny Schundelmier , Chin-Wei Wang , Poonam Yadav , Kaya Wei , N. P. Lalla , Shivani Sharma

The effect of local structure on the magnetic and transport properties of the layered perovskites has been investigated. The samples PrBaCo$_{2}$O$_{5+\delta}$, ($\delta$ = 0.80 and 0.67) though crystallize in the same 112 type tetragonal…

Strongly Correlated Electrons · Physics 2015-06-11 S. Ganorkar , K. R. Priolkar , P. R. Sarode , A. Banerjee , R. Rawat , S. Emura

The magnetic ordering of La$_{1/3}$Sr$_{2/3}$FeO$_3$ perovskite has been studied by neutron powder diffraction and $^{57}$Fe M\"ossbauer spectroscopy down to 2 K. From symmetry analysis, a chiral helical model and a collinear model are…

Materials Science · Physics 2018-05-23 F. Li , V. Pomjakushin , T. Mazet , R. Sibille , B. Malaman , R. Yadav , L. Keller , M. Medarde , K. Conder , E. Pomjakushina

Here we present a comparative study of the magnetic and crystal chemical properties of two Co2+ containing garnets, NaCa2Co2V3O12 and CaY2Co2Ge3O12. Both phases exhibit the onset of antiferromagnetic order at 8K and 6K respectively, as well…

In this study, we considered a large set of materials that are closely related to orthorhombic Fe$_3$C (cementite) with the aim of characterizing trends in their intrinsic magnetic properties and identifying alloys that are optimal for…

Materials Science · Physics 2025-03-19 Justyn Snarski-Adamski , Mirosław Werwiński , Justyna Rychły-Gruszecka

Wereport the results of a sequence of magnetisation and magneto-optical studies on laser ablated thin films of ZnCoAlO and ZnCoO that contain a small amount of metallic cobalt. The results are compared to those expected when all the…