A5000313294- Characterization and Applications of Magnetic Nanoparticles
- Spectroscopy and Quantum Chemical Studies
- Magnetic and Electromagnetic Effects
- Geomagnetism and Paleomagnetism Studies
- Quantum and electron transport phenomena
- Electrocatalysts for Energy Conversion
- Electrochemical Analysis and Applications
- Quantum, superfluid, helium dynamics
Los Alamos National Laboratory
2018
Yale University
2018
The effective susceptibility χeff of suspensions ferromagnetic particles in a liquid was measured using inductance measurements. These measurements were used to test model that predicts how varies due demagnetization, as function sample aspect ratio, particle packing fraction, and ratio [R. Skomski, G. C. Hadjipanayis, D. J. Sellmyer, IEEE Trans. Magn. 43, 2956–2958 (2007)]. For spherical or cylindrical forcibly aligned with an external magnetic field, the can be fitted data agreement within...
We characterize how suspensions of magnetic particles in a liquid respond to field terms the effective susceptibility $\chi_{eff}$ using inductance measurements. test model that predicts varies due demagnetization, as function sample aspect ratio, particle packing fraction, and ratio. For spherical or cylindrical aligned with external field, can be fitted measured data agreement within 17\%. However, we find random alignment relative plays role, reducing by factor 3 some cases, which is not...
We demonstrate the applicability of extended Lagrangian Born-Oppenheimer quantum-based molecular dynamics (XL-BOMD) to model electron transfer reactions occurring on solid-liquid interfaces. Specifically, we consider reduction O$_2$ as catalyzed at interface an N-doped graphene sheet and H$_2$O fuel cell cathodes. This system is a good testbed for next-generation computational chemistry methods since electrochemical functionalities strongly depend atomic-scale quantum mechanics. As opposed...