A5058767019- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Quasicrystal Structures and Properties
- Rare-earth and actinide compounds
- Advanced Thermoelectric Materials and Devices
- Chalcogenide Semiconductor Thin Films
- Nanoporous metals and alloys
- Crystallography and molecular interactions
- Metallic Glasses and Amorphous Alloys
- Metal complexes synthesis and properties
- Metallurgy and Material Science
- Metal-Organic Frameworks: Synthesis and Applications
- Inorganic Chemistry and Materials
- Magnetism in coordination complexes
- Advanced Chemical Physics Studies
- Semiconductor materials and interfaces
- Microstructure and mechanical properties
- Nanocluster Synthesis and Applications
- Advancements in Battery Materials
- Topological Materials and Phenomena
- 2D Materials and Applications
- Copper Interconnects and Reliability
- Magnetic and transport properties of perovskites and related materials
- Lanthanide and Transition Metal Complexes
- Crystal structures of chemical compounds
Indian Institute of Technology Kharagpur
2016-2025
University of Oxford
2020-2021
University of Cambridge
2020
Lund University
2012-2015
Getinge (Sweden)
2012-2014
Philipps University of Marburg
2012-2013
University of Kentucky
2009-2012
Université de Rennes
2012
Institut de Physique de Rennes
2012
Centre National de la Recherche Scientifique
2012
Trigonal Cr5Te8, a self-intercalated van der Waals ferromagnet with an out-of-plane magnetic anisotropy, has long been known to crystallize in centrosymmetric structure. However, optical second harmonic generation experiments, together comprehensive structural analysis, indicate that this compound rather adopts noncentrosymmetric Lorentz transmission electron microscopy reveals the presence of Néel-type skyrmions, consistent its A large anomalous Hall conductivity 102 Ω–1cm–1 at low...
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...
Crystal structure classification of binary intermetallic structures with 1:3 stoichiometry was done simple machine learning algorithms. The successful crystal segregation is attributed to the novel set descriptors comprising both compositional and structural features. dataset includes 97 features, a total 2366 reported compounds adopting six different types. unsupervised method based on principal component analysis (PCA) followed by clustering using K-means applied cluster belonging Using...
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...
Abstract The synthesis of a novel chemically coupled hybrid material based on Fe 2 O 3 ‐Fe 4 heterostructure and nitrogen‐doped reduced graphene oxide (N‐rGO) for the development high performance supercapacitor devices is demonstrated. synthesized in one‐pot method under hydrothermal condition, resulting formation crystalline α‐Fe poorly crystalline/amorphous . particles have an average size 30–50 nm. Chemical integration with N‐rGO through Fe‐O−C bonds achieved. chemical coupling...
A microporous La-metal-organic framework (MOF) has been synthesized by the reaction of La(NO3 )3 ⋅6 H2 O with a ligand 4,4',4''-s-triazine-1,3,5-triyltri-p-aminobenzoate (TATAB) featuring three carboxylate groups. Crystal structure analysis confirms formation 3D MOF hexagonal micropores, Brunauer-Emmett-Teller (BET) surface area 1074 m(2) g(-1) and high thermal chemical stability. The CO2 adsorption capacities are 76.8 cm(3) at 273 K 34.6 293 K, highest measured uptake for Ln-MOFs.
Abstract Ultralow thermal conductivity draws great attention in a variety of fields applications such as thermoelectrics and barrier coatings. Herein, the crystal structure transport properties Cu 4 TiSe are reported. is unique example non‐toxic low‐cost material that exhibits lattice ultra‐low 0.19 Wm −1 K at room temperature. The main contribution to unusually low connected with atomic its dynamics. This ultralow value ( k L ) can be attributed presence localized modes Cu, which partially...
Three new copper(<sc>ii</sc>) Schiff base complexes have been prepared and characterized. DFT calculations were employed to estimate the contribution of different non-covalent interactions in extended supra-molecular networks.
Laves phases AB2 form the most abundant group of intermetallic compounds, consisting combinations larger electropositive metals A with smaller B. Many practical applications depend on ability to tune their physical properties through appropriate substitution either or B component. Although simple geometrical and electronic factors have long been thought control formation phases, no single factor alone can make predictions accurately. Several machine learning models developed discover new...
Copper-transition-metal chalcogenides can offer low-cost and environmentally benign solutions to trap heat electric energy conversion. In this report, we present the synthesis characterization of Cu–Ti-based mixed chalcogenides, Cu4TiSe4–xSx (x = 0–4). At room temperature, Cu4TiSe4 adopts a sulvanite-type cubic structure (P4̅3m), whereas Cu4TiS4 crystallizes in body-centered tetragonal space group (I4̅2m), where lattice parameter is doubled along c-direction w.r.t. sulvanite. The S-analogue...
A novel active-RC circuit configuration for the realization of a floating admittance <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Y(s) = s^{2}D_{0}</tex> is proposed. The novelties scheme are realizability ideal FDNR xmlns:xlink="http://www.w3.org/1999/xlink">(D_{0})</tex> element using only two resistors and capacitor, use second-generation current conveyors (CC II) as active elements which offer extremely low sensitivites, no design...
A new compound Cu4TiTe4 in the Cu-Ti-Te ternary system is prepared using high-temperature solid-state synthesis and characterized by single-crystal X-ray diffraction energy-dispersive spectroscopy. The average structure of crystallizes cubic space group P4̅3m (cP9; a = 5.9484(1) Å) adopts Cu4TiSe4 type. Like Cu4TiSe4, it shows positional disorder one two Cu sites. three-dimensional viewed as close-packed (ccp) array Te, where half tetrahedral holes are orderly occupied three Ti disordered...
Polymeric and discrete Ln(<sc>iii</sc>) morpholine 4-dithiocarbamate complexes [Ln(Phen)(Mph-Dtc)<sub>3</sub>]<italic>x</italic>·CH<sub>2</sub>Cl<sub>2</sub> [Ln = Pr (<bold>1</bold>), Nd (<bold>2</bold>) Eu (<bold>3</bold>); Mph-Dtc 4-dithiocarbamate; <italic>x</italic> 2 (<bold>1</bold>) or 1 (<bold>2</bold>, <bold>3</bold>)] have been synthesized characterized.
Single crystals of ${\mathrm{Ce}}_{2}{\mathrm{Re}}_{3}{\mathrm{Si}}_{5}$ and ${\mathrm{Pr}}_{2}{\mathrm{Re}}_{3}{\mathrm{Si}}_{5}$ have been grown by the Czochralski method in a tetra-arc furnace. Powder x-ray diffraction confirmed that these compounds crystallize ${\mathrm{U}}_{2}{\mathrm{Mn}}_{3}{\mathrm{Si}}_{5}$-type tetragonal crystal structure with space group $P4/mnc$ (no. 128). The anisotropic physical properties studied comprehensively measuring magnetic susceptibility, isothermal...
Abstract InPd 3‐x Cu x (x=0–1) were prepared by high temperature synthesis starting from the highly pure constituent elements. The crystal structures determined X‐ray diffraction. In structure of (x=0–1), stabilizes TiAl 3 ‐type and selectively substitutes one two Pd positions at limiting composition ordered 2 is formed where completely occupies that position. intriguing selective substitution was investigated first‐principles total energy calculations followed electronic chemical bonding analysis.
Trigonal Cr5Te8, a self-intercalated van der Waals ferromagnet with an out of plane magnetic anisotropy, has long been known to crystallise in centrosymmetric structure. Through detailed structural analysis together second harmonic generation experiments, we show that the compound actually adopts non-centrosymmetric A large anomalous Hall conductivity 102 {\Omega}^(-1) cm^(-1) at low temperature stems from intrinsic origin, which is larger than any previously reported values bulk Cr-Te...
We have synthesized δ-Co2.5Zn17.5–xMnx (x = 0.4–3.5) pseudo-binary alloys of 10 different compositions by a high-temperature solid-state synthetic route, determined their crystal structures and the Mn substitution pattern, estimated existence range δ-phase. The crystallize in two chiral enantiomorphic space groups P62 P64, where basic atomic polyhedron structure is an icosahedron neighboring icosahedra share vertices to form infinitely long double helix along hexagonal axis (like...