The crystal structure, magnetic ground state, and the temperature-dependent microscopic spin-spin correlations of frustrated honeycomb lattice antiferromagnet $\mathrm{N}{\mathrm{a}}_{2}\mathrm{C}{\mathrm{o}}_{2}\mathrm{Te}{\mathrm{O}}_{6}$ have been investigated by powder neutron diffraction. A long-range antiferromagnetic (AFM) ordering has found below ${T}_{\mathrm{N}}\ensuremath{\sim}24.8\phantom{\rule{0.16em}{0ex}}\mathrm{K}$. determined to be zigzag characterized a propagation vector...

We present synchrotron x-ray diffraction, neutron powder and time-of-flight inelastic scattering measurements on the rare earth pyrochlore oxide ${\mathrm{Nd}}_{2}{\mathrm{Zr}}_{2}{\mathrm{O}}_{7}$ to study ordered state magnetic structure cystal-field states. The structural characterization by high-resolution diffraction confirms that has no detectable O vacancies or Nd/Zr site mixing. reveals long-range all-in/all-out antiferromagnetic order below ${T}_{\mathrm{N}}\ensuremath{\approx}0.4$...

Honeycomb structured Na 2 Ni TeO 6 can be used as a high voltage and stable cathode for Na-ion batteries where understanding the diffusion kinetics through electrochemical study plays crucial role development of future energy storage devices.

In this paper we report an investigation on the ferromagnetic state and nature of transition nanoparticles $\mathrm{La_{0.67}Ca_{0.33}MnO_3}$ using magnetic measurements neutron diffraction. The was made with crystal size down to $15$ nm. data show that even a nm finite spontaneous magnetization ($M_S$) although value is much reduced compared bulk sample. We observed non-monotonic variation paramagnetic temperature $T_C$ $d$ found initially enhances reduction, but for $d < 50$ it decreases...

Confinement is a process by which particles with fractional quantum numbers bind together to form quasiparticles integer numbers. The constituent are confined an attractive interaction whose strength increases increasing particle separation and as consequence, individual not found in isolation. This phenomenon well known physics where quarks baryons mesons. An analogous occurs certain magnetic insulators; weakly coupled chains of spins S=1/2. collective excitations these systems spinons...

We have investigated the physical properties of a pyrochlore hafnate Nd2Hf2O7 using ac magnetic susceptibility \chi_ac(T), dc \chi(T), isothermal magnetization M(H) and heat capacity C_p(T) measurements, determined ground state by neutron powder diffraction study. An upturn is observed below 6 K in C_p(T)/T, however both \chi(T) do not show any clear anomaly down to 2 K. The \chi_ac(T) shows well pronounced indicating an antiferromagnetic transition at T_N = 0.55 long range ordering...

Using high resolution THz spectroscopy, the authors study spinon confinement in weakly coupled antiferromagnetic chain compound SrCo${}_{2}$V${}_{2}$O${}_{8}$. The confined spinons appear a hierarchy that can be fully described by one dimensional Schr\"odinger equation with linear potential.

Nanocrystalline phase pure CeCrO3 was synthesized by a two-step synthesis. The compound investigated host of characterization techniques such as X-ray diffraction, high-temperature high-resolution transmission electron microscopy, photoelectron spectroscopy, thermogravimetric−differential thermal analysis, magnetic and specific heat capacity data, ac impedance diffuse reflectance DR UV−visible spectrophotometer, dynamic light scattering. structure established using variable-temperature...

A new series of La(1-x)Ce(x)CrO(3) (0.0 <or= x <or=1.0) compounds in nanocrystalline form were synthesized using a two-step synthesis route, involving an initial combustion reaction followed by vacuum heating the presence Zr sponge, which acted as oxygen getter. For first time, homogeneous solid solution formation throughout entire range was obtained this series. These characterized X-ray diffraction, diffuse reflectance UV visible spectrophotometry, and superconducting quantum interference...

We present a critical investigation on the structural, magnetic, and magnetotransport properties of two sets polycrystalline SrRuO${}_{3}$ samples with uniquely defined ferromagnetic transition temperatures. The ac magnetic susceptibility study exhibits remarkable memory effect, distinct characteristic glassy behavior, at low transport suggests crossover from Fermi-liquid to non-Fermi-liquid behavior. Most strikingly, temperature-dependent magnetoresistance dips (one around ordering...

Field-induced magnetic ordering in the Haldane chain compound SrNi${}_{2}$V${}_{2}$O${}_{8}$ and effect of anisotropy have been investigated using single crystals. Static susceptibility, inelastic neutron scattering, high-field magnetization, low-temperature heat-capacity studies confirm a nonmagnetic spin-singlet ground state gap between singlet triplet excited states. The intrachain exchange interaction is estimated to be $J\ensuremath{\sim}8.9\ifmmode\pm\else\textpm\fi{}0.1$ meV....

Magnetic correlations of two isostructural quasi-one-dimensional (1D) antiferromagnetic spin-chain compounds Sr${M}_{2}$V${}_{2}$O${}_{8}$ (M = Co, Mn) have been investigated by magnetization and powder neutron diffraction. Two different collinear (AFM) structures, characterized the propagation vectors, $k=$ (0 0 1) $k$ 0), found below $\ensuremath{\sim}$5.2 $\ensuremath{\sim}$42.2 K for Co Mn compounds, respectively. For compound, AFM chains (along $c$ axis) order ferromagnetically within...

The structural, electric, and magnetic properties of bulk hexagonal $\mathrm{LuFe}{\mathrm{O}}_{3}$ are investigated. Single phase has been successfully stabilized in the form without any doping by sol-gel method. crystal structure with $P{6}_{3}cm$ space group confirmed x-ray-diffraction, neutron-diffraction, Raman spectroscopy study at room temperature. Neutron diffraction confirms persists down to 6 K. Further, x-ray photoelectron established 3+ oxidation state Fe ions....

We report on spectroscopy study of elementary magnetic excitations in an Ising-like antiferromagnetic chain compound ${\mathrm{SrCo}}_{2}{\mathrm{V}}_{2}{\mathrm{O}}_{8}$ as a function temperature and applied transverse field up to 25 T. An optical well acoustic branch confined spinons, the at zero field, are identified phase below N\'eel 5 K described by one-dimensional Schr\"odinger equation. The confinement can be suppressed quantum disordered is induced 7 In this paramagnetic phase, we...

Na-ion conduction and correlations between pathways the crystal structure have been investigated as a function of temperature in layered battery material Na2Ni2TeO6 by impedance spectroscopy neutron diffraction, respectively. The data reveal an ionic conductivity σ ≈ 2 × 10–4 S/m at 323 K, which strongly enhances with increasing attains high value ∼0.03 423 K. temperature-dependent show Arrhenius-type behavior average activation energy (Ea) ∼0.58(3) eV for T ≥ 383 By employing soft bond...

Abstract Understanding exotic forms of magnetism in quantum spin systems is an emergent topic modern condensed matter physics. Quantum dynamics can be described by particle-like carriers information, known-as quasiparticles that appear from the collective behaviour underlying system. Spinon excitations, governing excitations spin-systems, have been accurately calculated and precisely verified experimentally for antiferromagnetic chain model. However, identification characterization novel...

A series of compositions NiIn1-xSnx (x = 0-1) were synthesized by conventional high-temperature synthesis, and as-synthesized samples checked powder X-ray diffraction experiments. < 0.7) mainly forms the ternary variant CoSn-type structure (P6/mmm), whereas, x 0.7-0.9, predominantly an orthorhombic (Pnma) phase. To resolve accurate crystal hexagonal NiIn1-xSnx, a combination single-crystal neutron techniques is employed. It revealed that in 0.7), Sn gradually substitutes one two In sites...

One notable yet typical characteristic of Heusler compounds is their susceptibility to antisite defects and disorders. Concerning this, the Fe2TiSn compound has been an exciting disputed candidate, where ground state properties are highly affected by disorder. Attempts manipulate extent disorder via doping or substitution well-documented. This study presents qualitative evidence for significant modification disorder, achievable through careful heat treatment compositions. Polycrystalline...

We report the microscopic mechanism of Na-ionic conduction and role underlying crystal structure in ionic two-dimensional (2D) layered battery material Na2Co2TeO6 by combined neutron diffraction impedance spectroscopy studies. consists Na+-ion layers ab plane, which are well separated intermediate magnetic (Co/Te)O6 along c axis. Within layers, Na+ ions, resided trigonal prismatic NaO6 coordination, distributed over three partially occupied crystallographic sites. Our temperature-dependent...

The investigation focuses on Mn substitution in Co2Zn11, prepared by pursuing a solid-state sealed tube method under high vacuum. We report the crystal structure and magnetic properties of Co2Zn10.2Mn0.8 detail. adopts noncentrosymmetric space group I4̅3m (No. 217), distribution Co, Mn, Zn atoms is confirmed using X-ray neutron powder diffraction (NPD) techniques. studies reveal cluster glass (CG) formation below spin-freezing temperature 23.1 K Co2Zn10.2Mn0.8, also indicated large value...

<title>Abstract</title> Two approaches can be utilized to handle the separability problem, finding out whether a given bipartite qudit state is separable or not: direct procedure on space effective tool of entanglement witnesses (EWs). This contribution studies structure EWs. Exploiting very concept mirrored EWs, increasing detection power, we show, in contrast conjecture recent paper (Sci. Rep. 13, 10733 (2023)), there exist pairs optimal which are both non-decomposible, i.e. detect...