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We have performed field-swept 59Co NMR measurements on the 'exotic' spin-chain material, Ca3Co2O6, crystallizing in K4CdCl6-type rhombohedral structure, believed to exhibit two magnetic transition temperatures (around 24 and 12 K). This is…

Strongly Correlated Electrons · Physics 2009-11-10 E. V. Sampathkumaran , N. Fujiwara , S. Rayaprol , P. K. Madhu , Y. Uwatoko

Here we present a neutron scattering-based study of magnetic excitations and magnetic order in NaYbO$_2$ under the application of an external magnetic field. The crystal electric field-split $J = 7/2$ multiplet structure is determined,…

We report magnetization and heat-capacity measurements on the ordered-spinel oxide Li$_2$NiGe$_3$O$_8$, where Ni$^{2+}$ ions with $S = 1$ form a single three-dimensional trillium lattice. Powder x-ray diffraction confirms a cubic…

Strongly Correlated Electrons · Physics 2026-05-14 Yuya Haraguchi

The frustrated magnet Bi2Fe4O9 has been reported to exhibit complex spin dynamics coexisting with conventional spin wave excitations. The magnetic Fe3+ (S = 5/2) ions are arranged into a distorted two-dimensional Cairo pentagonal lattice…

Magnetic excitation spectra of quantum spins of Na3Cu2SbO6 with the distorted honeycomb structure have been measured by neutron inelastic scattering. The intensity distribution and the dispersion curves of the excitations indicate that the…

Strongly Correlated Electrons · Physics 2009-11-13 Yoko Miura , Yukio Yasui , Taketo Moyoshi , Masatoshi Sato , Kazuhisa Kakurai

Polarized and unpolarized neutron inelastic scattering has been used to measure the spin excitations in the spin-charge-ordered stripe phase of La5/3Sr1/3NiO4. At high energies, sharp magnetic modes are observed characteristic of a static…

Strongly Correlated Electrons · Physics 2009-11-07 A. T. Boothroyd , D. Prabhakaran , P. G. Freeman , S. J. S. Lister , M. Enderle , A. Hiess , J. Kulda

We present the first neutron inelastic scattering results on the low temperature magnetic state of the three dimensional hyperkagom\'e compound Gd$_{3}$Ga$_{5}$O$_{12}$ (GGG). GGG is often classified as a strongly frustrated system with a…

Strongly Correlated Electrons · Physics 2010-04-26 P. P. Deen , O. A. Petrenko , G. Balakrishnan , B. D. Rainford , C. Ritter , L. Capogna , H. Mutka , T. Fennell

Magnetic excitations and the spin Hamiltonian of the spin-1 J1-J1-J2 trimer chain compound CaNi3P4O14 have been investigated by inelastic neutron scattering. Experimental data reveal gapped dispersive spin wave excitations in the 3D…

Strongly Correlated Electrons · Physics 2020-07-15 A. K. Bera , S. M. Yusuf , D. T. Adroja

A detailed study of the structural and magnetic properties of a spin-$5/2$ triangular lattice antiferromagnet RbFe(HPO$_{3}$)$_{2}$ is presented using x-ray diffraction, magnetization, heat capacity, and $^{31}$P nuclear magnetic resonance…

Materials Science · Physics 2025-11-24 V. Nagpal , Sebin J. Sebastian , Surya P. Patra , S. Shibash , Q. -P. Ding , Y. Furukawa , R. Nath

The low-dimensional s=1/2 compound (NO)[Cu(NO3)3] has recently been suggested to follow the Nersesyan-Tsvelik model of coupled spin chains. Such a system shows unbound spinon excitations and a resonating valence bond ground state due spin…

Strongly Correlated Electrons · Physics 2022-06-08 V. Gnezdilov , P. Lemmens , Yu. G. Pashkevich , D. Wulferding , I. V. Morozov , O. S. Volkova , A. Vasiliev

Inelastic neutron scattering experiments were performed on single crystals of the heavy-fermion compound CeIn$_{3}$ for temperatures below and above the N\'eel temperature, $T_N$. In the antiferromagnetically ordered phase, well-defined…

Strongly Correlated Electrons · Physics 2009-11-10 W. Knafo , S. Raymond , B. Fak , G. Lapertot , P. C. Canfield , J. Flouquet

Frustrated systems exhibit remarkable properties due to the high degeneracy of their ground states. Stabilised by competing interactions, a rich diversity of typically nanometre-sized phase structures appear in polymer and colloidal…

The quasi-one-dimensional Ising spin chain system $\alpha$-CoV$_2$O$_6$ is considered to exhibit fascinating magnetic properties at lower temperatures. We comprehensively study magnetic properties and lattice dynamics using a combination of…

We report a comprehensive investigation of the quasi-one-dimensional spin-chain compound Ca3CoIrO6 (CCIO) using a combination of structural, magnetic, thermodynamic, transport, Raman, and dielectric measurements. Temperature-dependent…

Materials Science · Physics 2025-11-17 Priyanka Mahalle , A. Kumar , Kumar Bharti , Dipanshu Bansal , P. D. Babu , S. M. Yusuf

In this article, we report negative thermal expansion and spin frustration in hexagonal GdInO$_{3}$. Rietveld refinement of the XRD patterns reveal that the negative thermal expansion in the temperature range of 50-100K stems from the…

Materials Science · Physics 2017-02-15 Barnita Paul , Swastika Chatterjee , Anushree Roy , A. Midya , P. Mandal , Vinita Grover , A. K. Tyagi

We present a systematic inelastic neutron scattering and neutron diffraction study of the magnetic structure of the quasi-1D spin-1/2 magnet SrCo2V2O8, where the interchain coupling in the Neel-type antiferromagnetic ground state breaks the…

Strongly Correlated Electrons · Physics 2022-03-04 L. Shen , E. Campillo , O. Zaharko , P. Steffens , M. Boehm , K. Beauvois , B. Ouladdiaf , Z. He , D. Prabhakaran , A. T. Boothroyd , E. Blackburn

We have studied magnetodielectric and spin-lattice coupling in CoNb$_{2}$O$_{6}$ single crystals. Magnetostriction and magnetodielectric experiments are performed at temperatures in and above antifferomagnetic phase of quasi 1D Ising spin…

Strongly Correlated Electrons · Physics 2016-09-08 M. Nandi , D. Prabhakaran , P. Mandal

We have investigated the quasi-one dimensional Ni-chain compound PbMn$_2$Ni$_6$Te$_2$O$_{18}$ using theoretical DFT calculations, inelastic neutron scattering and optical spectroscopy in order to understand the nature of magnetic exchange…

Heat-capacity (C) and ac susceptibility measurements have been performed on the spin-chain compounds, Sr3ZnRhO6 and Ca3NiMnO6, to establish their magnetic behavior and to explore whether there are magnetic frustration effects due to…

Strongly Correlated Electrons · Physics 2009-11-10 S. Rayaprol , Kausik Sengupta , E. V. Sampathkumaran , Y. Matsushita

Fe3PO4O3 forms a non-centrosymmetric lattice structure (space group R3m) comprising triangular motifs of Fe^{3+} coupled by strong antiferromagnetic interactions (|\Theta_{CW}| > 900 K). Neutron diffraction from polycrystalline samples…

Strongly Correlated Electrons · Physics 2016-02-03 Kate A. Ross , Mitchell Bordelon , Greg Terho , James R. Neilson