A5060446624- Rare-earth and actinide compounds
- Magnetic and transport properties of perovskites and related materials
- Advanced Thermoelectric Materials and Devices
- Iron-based superconductors research
- Advanced Condensed Matter Physics
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Topological Materials and Phenomena
- Chalcogenide Semiconductor Thin Films
- Advanced Thermodynamic Systems and Engines
- High-pressure geophysics and materials
- Process Optimization and Integration
- Heat transfer and supercritical fluids
- Multiferroics and related materials
- Sustainability and Ecological Systems Analysis
- Semiconductor materials and interfaces
- 2D Materials and Applications
- Intermetallics and Advanced Alloy Properties
National High Magnetic Field Laboratory
2022-2024
Florida State University
2022-2024
Florida A&M University - Florida State University College of Engineering
2022-2024
For some intermetallic compounds containing lanthanides, structural transitions can result in intermediate electronic states between trivalency and tetravalency; however, this is rarely observed for praseodymium compounds. The dominant of limits potential discoveries emergent quantum itinerant 4 f 1 systems accessible using Pr 4+ -based Here, we use situ powder x-ray diffraction electron energy-loss spectroscopy (EELS) to identify an example a dominantly state the polymorphic system 2 Co 3...
Thermoelectric materials hold tremendous promise for advances in fundamental science and practical applications, particularly robust electricity generation extreme remote environments. Despite this, most the energy conversion efficiency is limited by proportionality between electrical thermal conductivities small values of Seebeck coefficient metals. It was previously reported that heavy-fermion compound ${\mathrm{YbIr}}_{2}{\mathrm{Zn}}_{20}$ exhibits large [E. Mun et al., Phys. Rev. B 86,...
Abstract The crystal structure, electron energy-loss spectroscopy (EELS), heat capacity, and anisotropic magnetic resistivity measurements are reported for Sn flux grown single crystals of orthorhombic Pr 2 Co 3 Ge 5 (U Si -type, Ibam ). Our findings show that o -Pr hosts nearly trivalent ions, as evidenced by EELS fits to temperature dependent susceptibility measurements. Complex ordering with a partially spin-polarized state emerges near T sp = 32 K, spin reconfiguration transition M 15 K....
The increase in human population results high demand for clean and potable water large municipal solid waste (MSW) generation. At the same time, a global scenario of freshwater shortage is expected. This paper presents an exergetic analysis optimization integrated MSW incineration wastewater treatment plant, which thermal energy generated by incinerating recovered treatment. methodology consists assessing viability system through analysis. divided into three modules: (i) incinerator, (ii)...
Using in situ x-ray pair distribution analysis magnetic field, we study the strong spin-lattice coupling archetypal magnetocaloric ${\mathrm{Gd}}_{5}{(\mathrm{Ge},\phantom{\rule{0.28em}{0ex}}\mathrm{Si})}_{4}$ alloys manifested by presence of a first order paramagnetic (PM)-to-ferromagnetic (FM) phase transition that can be triggered either decreasing temperature zero field or increasing at constant temperature. We find arises from tendency Gd-(Si,Ge) slabs to reversibly slide against each...
Thermoelectric devices are both solid-state heat pumps and energy generators. Having a reversible process without moving parts is of high importance for applications in remote locations or under extreme conditions. Yet, most thermoelectric have rather limited conversion efficiency due to the natural competition between electrical conductivity low thermal conductivity, being essential conditions achieving efficiency. Heavy-fermion compounds Yb
Zintl phases have potential applications as thermoelectric materials for power generation and cooling owing to their complex crystal structures unique electronic properties. We carried out reactions of silicon with barium strontium in excess Mg/Zn flux synthesize (Ba/Sr)
There is ongoing interest in strongly correlated spin systems where the interplay between structural, charge, and degrees of freedom produces novel phenomena, including helical order, topologically protected textures (e.g., skyrmions), unconventional electronic band physics flat bands), other emergent states. Here we report results for ${\mathrm{GdNiAl}}_{4}{\mathrm{Ge}}_{2}$, which crystallizes a rhombohedral structure that features geometrically frustrated triangular nets lanthanide ions....
Results are reported for Mn intercalated Zr2Te2P, where x-ray diffraction , energy dispersive spectroscopy, and transmission electron microscopy measurements reveal that the van der Waals bonded Te-Te layers partially filled by Zr ions. This leads to chemical formulas Zr0.07Zr2Te2P Mn0.06Zr0.03Zr2Te2P parent substituted compounds, respectively. The impact of ions is seen in anisotropic magnetic susceptibility, Curie-Weiss fits data indicate divalent state. Heat capacity electrical transport...