The demagnetization (50 kOe) at liquid hydrogen temperature leads to decrease of down 3.5 K for GdVO₄.

Our thorough synchrotron diffraction studies provide a clue on the origin of ferroelectricity in SmCrO3. Careful observation demonstrates that polar order develops paramagnetic state. Rietveld refinement data confirms emergence is correlated with structural transformation from centrosymmetric Pbnm to non-centrosymmetric Pna21 space group distorted orthorhombic structure. Rotations CrO6 octahedra and Sm displacement are proposed be order, which extended over wide temperature range increases...

We report the appearance of ferroelectricity below ${T}_{S}=18$ K, at which short-ranged spiral spin orders, suggesting that ${\mathrm{MnCr}}_{2}{\mathrm{O}}_{4}$ is an improper multiferroic material. Linear heat capacity data and zero-field-cooled memory effect verify reentrant spin-glass-like state ${T}_{S}$. Synchrotron x-ray diffraction studies confirm significant magnetoelastic coupling long-range ferrimagnetic order (${T}_{N}=42$ K) argue release topological frustration, produced due...

We report ferroelectricity in antiferromagnetic HoCrO₃ with a reasonably large value of spontaneous electric, which appears due to structural transition from <italic>Pbnm</italic> nonsymmetric <italic>Pna</italic>2₁ space group.

We report ferroelectricity around ∼88 K that appears well below TN (∼25 K), unlike other members of RCrO3 series. A synchrotron diffraction study suggests the occurrence in NdCrO3 is coupled to structural transformation from centrosymmetric Pnma a non-centrosymmetric Pna21 space group. strong magnetoelectric coupling observed electric polarization [P(T)]. This significantly influenced by magnetic field cooling effect, suggesting an exchange bias effect P(T). also revealed systematic shift...

We observe ferroelectricity in an almost unexplored double perovskite La3Ni2NbO9. Ferroelectricity appears below ∼60 K, which is found to be correlated with the significant magnetostriction. A reasonably large value of spontaneous electric polarization recorded ∼260 μC/m(2) at 10 K for E = 5 kV/cm, decreases signifi- cantly upon application a magnetic field (H), suggesting considerable magnetoelectric coupling. The dielectric permittivity also influenced by H ferroelectric transition....

We report a new multiferroic family of $(R,\mathrm{Y}){\mathrm{CrO}}_{4}(R=\mathrm{Sm},\mathrm{Gd},\text{and} \mathrm{Ho})$. The ferroelectric ordering temperatures are observed at much higher than their corresponding magnetic for all the members. values electric polarization ($P$) significantly high, which vary from $\ensuremath{\sim}217$ to $\ensuremath{\sim}640\phantom{\rule{4pt}{0ex}}\ensuremath{\mu}{\mathrm{C}/\mathrm{m}}^{2}$ 4 kV/cm poling field. large value...

In developing hydrogel scaffolds for the soft tissue regeneration, a number of inorganic or carbonaceous fillers are embedded in alginate/gelatin-based while manufacturing shape fidelity compliant constructs using three-dimensional (3D) extrusion printing. Among spectrum nanofillers, nanohydroxyapatite (nHAP), due to its intrinsic bioactivity, could promote mineralization and interaction with host tissues conferring superior mechanical properties (strength elastic modulus). Against this...

Abstract The fluorinated compound, (S)-4′′-(6-perfluoropentanoyoxyhexyl-1-oxy)-2′,3′-difluoro-4-(1-methylheptyloxycarbonyl)-[1,1′:4′,1′′]-terphenyl, which exhibits antiferroelectric SmCA*, ferroelectric SmC* and paraelectric SmA* phases, has been investigated by polarising optical microscopy, differential scanning calorimetry, X-ray diffraction frequency-dependent dielectric spectroscopy methods. studies have revealed that the layer thickness remains almost constant in phase but within SmCA*...

Well crystalline α-Fe2O3 nanomaterials with a wide range of morphology variation have been successfully synthesized by solvothermal route. The products characterized for structural and morphological details employing x-ray diffraction patterns, transmission electron microscopy, field emission scanning microscopy energy dispersive spectroscopy. Various unique shapes nanocrystal modelled on the basis their growth evolution. effect nanocrystals magnetic behaviour has studied investigating...

We report a rare consequence of memory effect in dielectric response (ϵ) and magnetic field induced rejuvenation relaxor-type multiferroic chalcogenide, CuCrS2. Despite reasonably high conductivity, we are able to detect significant spontaneous polarization using an improvised technique verifying ferroelectric (FE) order. Concomitant appearance both FE antiferromagnetic orders authenticates multiferroicity. A smeared out transition strong frequency dependence the broadened peak ϵ obeying...

We report appearance of polar order with a ordering temperature $({T}_{C})$ at 28 K, which is well below the ferrimagnetic 225 K $({T}_{N})$ for ${\mathrm{CoCr}}_{2}{\mathrm{S}}_{4}$. Intriguingly, value spontaneous electric polarization $(P)$ $\ensuremath{\sim}122 \ensuremath{\mu}\mathrm{C}/{\mathrm{m}}^{2}$ 15 second largest in Cr octahedra-based spinels after ${\mathrm{CdCr}}_{2}{\mathrm{S}}_{4}$. Incidentally, $P$ $\ensuremath{\sim}60$ times larger than oxide counterpart...

Current scenario in multiferroics demands a breakthrough discovery of promising materials after BiFeO3. Recently, the controversial room temperature ferroelectricity (FE) SmFeO3 [PRL 107, 117201 (2011); 113, 217203 (2014)] inspires investigation HoFeO3. Here, we report natural ferroelectric order below 210 K (TFE) along c-axis with reasonably large polarization and low-field strong magnetoelectric coupling. Synchrotron neutron diffraction results confirm that shift O atoms polar Pbn21...

Programming the reaction chemistry for superseding formation of Sm2O3 in a competitive process and dissolution, crystal growth patterns are varied two different nanostructures 2D confinement regime designed. Among these, regular self-assembled square platelets exhibit paramagnetic behavior analogous to bulk Sm2O3. But, other one, flower like shaped nanostructure, formed by irregular growth, shows superparamagnetism at room temperature which is unusual paramagnet. It has been noted that...

We report intrinsic memory effect in magnetization and dielectricity for the spin-chain compound ${\mathrm{Sm}}_{2}{\mathrm{BaNiO}}_{5}$, pointing cooperative glassy response below $\ensuremath{\sim}8\phantom{\rule{0.16em}{0ex}}\mathrm{K}$. Signature of anomaly around 8 K is verified by magnetization, heat capacity, dielectric permittivity, magnetostriction, structural parameters as obtained from synchrotron diffraction studies. Intriguingly, observed well magnetic ferroelectric ordering...

We report a novel approach for fabricating nanocrystalline and mesoporous nickel ferrite nanoparticles of <italic>ca.</italic> 5–9 nm size it showed interesting memory effect as consequence interparticle interaction self-assembled nanoparticles.

Magnetic, dielectric, and ac conductivity as well room temperature structural Raman studies are performed on double perovskite Dy2NiMnO6. The crystal structure of the compound adopts monoclinic P21/n space group, where alternate Mn Ni distorted octahedral arranged in anti-phase a− b+ order Glazer notation. Magnetization show two magnetic transitions around 100 K 20 which related to ordering transition rare earth cations moment, respectively. Temperature dependent dielectric permittivity...

This work reports an experimental study on the temperature dependence of structural parameters LiCrO${}_{2}$ (LCO) and Li${}_{0.99}$Cu${}_{0.01}$CrO${}_{2}$ (LCCO) by using a synchrotron x-ray diffraction technique. A significant magnetoelastic coupling is revealed anomalies observed in lattice at magnetic electric phase transitions, apparent as steplike features both Cr-O Li-O bond lengths, well O-Cr-O angles. Magnetic, dielectric, polarization measurements reveal antiferromagnetic...

We report significantly large magnetocapacitance (∼32%) close to room temperature in Cr2O3 film fabricated using pulsed laser deposition technique. Magnetic hysteresis loop exhibits typical signature of a soft ferromagnetic character at contrast that observed antiferromagnetic bulk counterpart. The value saturation magnetization (MS) is with MS≈1.0μB temperature. A significant strain ascribed the lattice mismatch suggested for occurrence ferromagnetism and correlated