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The idea of embedding and transmitting information within the fluctuations of the magnetic moments of spins (spin waves) has been recently proposed and experimentally tested. The coherence of spin waves, which describes how well defined…

We present results based on local spin density calculations of a computational search for half-metallic (HM) antiferromagnetic (AFM) materials within the class of double perovskite structure oxides LaM'M''O3 that incorporate open shell 3d…

Materials Science · Physics 2009-10-30 Warren E. Pickett

$^{31}$P nuclear magnetic resonance (NMR) measurements have been carried out to investigate the magnetic properties and spin dynamics of Fe$^{3+}$ ($S$ = 5/2) spins in the two-dimensional triangular lattice (TL) compound…

Strongly Correlated Electrons · Physics 2022-11-23 Devi V. Ambika , Qing-Ping Ding , Sebin J. Sebastian , Ramesh Nath , Yuji Furukawa

Few examples of magnetic systems displaying a transition to pure dipolar magnetic order are known to date, and single-molecule magnets can provide an interesting example. The molecular cluster spins and thus their dipolar interaction energy…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. Morello , F. L. Mettes , O. N. Bakharev , H. B. Brom , L. J. de Jongh , F. Luis , J. F. Fernandez , G. Aromi

We present neutron diffraction, magnetic susceptibility and specific heat data for a single-crystal sample of the cubic (Cu3Au structure) compound Pr3In. This compound is believed to have a singlet (Gamma1) groundstate and a low-lying…

We report here a comprehensive study of the AFM structures of the Eu and Mn magnetic sublattices as well as the interplay between Eu and Mn magnetism in this compound by using both polarized and non-polarized single-crystal neutron…

The impact of magnetism on predicted atomic short-range order in three medium- and high-entropy alloys is studied using a first-principles, all-electron, Landau-type linear response theory, coupled with lattice-based atomistic modelling. We…

Materials Science · Physics 2023-05-04 Christopher D. Woodgate , Daniel Hedlund , L. H. Lewis , Julie B. Staunton

The spectrum of spin fluctuations in the stacked-triangular antiferromagnet YMnO3 was studied above the Neel temperature using both unpolarized and polarized inelastic neutron scattering. We find an in-plane and an out-of-plane excitation.…

Strongly Correlated Electrons · Physics 2009-11-11 B. Roessli , S. N. Gvasaliya , E. Pomjakushina , K. Conder

The metallic compound Mn$_5$Si$_3$ hosts a series of antiferromagnetic phases which can be controlled by external stimuli such as temperature and magnetic field. In this work, we investigate the spin-excitation spectrum of bulk Mn$_5$Si$_3$…

Hexagonal HoMnO$_{3}$ is a frustrated antiferromagnet (T$_{N}$=72 K) ferroelectric (T$_{C}$=875 K) in which these two order parameters are coupled. Our neutron measurements of the spin wave dispersion for the S=2 Mn$^{3+}$ on the layered…

Strongly Correlated Electrons · Physics 2009-11-11 O. P. Vajk , M. Kenzelmann , J. W. Lynn , S. B. Kim , S. -W. Cheong

We have performed the powder neutron diffraction measurements on the solid solutions of SrRu_{1-x}Mn_xO_3, and found that the itinerant ferromagnetic order observed in pure SrRuO_3 changes into the C-type antiferromagnetic (AF) order with…

Strongly Correlated Electrons · Physics 2007-05-23 M. Yokoyama , C. Satoh , A. Saitou , H. Kawanaka , H. Bando , K. Ohoyama , Y. Nishihara

The compound FeMnP$_{0.50}$Si$_{0.50}$ has been studied by magnetic measurements, M\"ossbauer spectroscopy and electronic structure and total energy calculations. An unexpected high magnetic hyperfine field for Fe atoms located at the…

The title compounds have dominant ferromagnetic (FM) exchange interactions within one-dimensional (1D) half-twist ladders of s =1/2 Cu2^{+} ions and antiferromagnetic(AFM) interactions between ladders, leading to ordered 3D phases at…

Strongly Correlated Electrons · Physics 2015-06-15 M. Kumar , S. E. Dutton , R. J. Cava , Z. G. Soos

We present a study of the alloying series of the non-centrosymmetric $f$-electron intermetallic CePt$_3$B$_{1-x}$Si$_x$ by means of muon spin rotation and relaxation measurements. In addition, we include a high pressure magnetization…

Strongly Correlated Electrons · Physics 2015-09-16 D. Rauch , P. Horenburg , S. Hartwig , F. J. Litterst , S. Süllow , H. Luetkens , C. Baines , S. Yamazaki , H. Hidaka , H. Amitsuka , E. Bauer

The electronic properties, exchange interactions, finite-temperature magnetism, and transport properties of random quaternary Heusler Ni$_{2}$MnSn alloys doped with Cu- and Pd-atoms are studied theoretically by means of {\it ab initio}…

Materials Science · Physics 2015-05-19 S. K. Bose , J. Kudrnovský , V. Drchal , I. Turek

We have investigated the effects of substituting In for Mn on the antiferromagnetic phase transition in YMnO3 using magnetic, dielectric, and specific heat measurements. We prepared a set of isostructural phase pure hexagonal…

Materials Science · Physics 2015-05-14 A. Dixit , Andrew E. Smith , M. A. Subramanian , G. Lawes

The antiferromagnetic - ferromagnetic phase transition in YBaCo2O5.50 and YBaCo2O5.44 cobaltites with different types of oxygen-ion ordering in the [YO0.5/0.44] layers has been studied by neutron powder diffraction. Using the magnetic…

Materials Science · Physics 2007-05-23 D. D. Khalyavin , D. N. Argyriou , U. Amann , A. A. Yaremchenko , V. V. Kharton

We report on the microscopic model of the recently synthesized one-dimensional quantum magnet (NO)Cu(NO3)3. Applying density functional theory band structure calculations, we obtain a leading antiferromagnetic exchange coupling J ~ 200 K,…

Strongly Correlated Electrons · Physics 2010-11-15 O. Janson , A. A. Tsirlin , H. Rosner

Low temperature studies of the behavior of the sound velocity and attenuation of acoustic modes have been performed on a single crystal NdFe_3(BO_3)_4. Transitions of the magnetic subsystem to the antiferromagnetically ordered state at T_N…

Strongly Correlated Electrons · Physics 2015-05-27 G. A. Zvyagina , K. R. Zhekov , I. V. Bilych , A. A. Zvyagin , I. A. Gudim , V. L. Temerov

The magnetic properties of single crystalline EuPtGe$_3$, crystallizing in the non-centrosymmetric BaNiSn$_3$-type crystal structure, have been studied by means of magnetisation, electrical resistivity, heat capacity and $^{151}$Eu…

Strongly Correlated Electrons · Physics 2011-12-22 Neeraj Kumar , Pranab Kumar Das , Ruta Kulkarni , A. Thamizhavel , S. K. Dhar , P. Bonville