Research projects are available for students of all levels. Short description is given below. Please, contact us for up-to-date information.
Dynamic susceptibility of novel magnetic systems (metamagnetism, spin glasses, magnetic molecules, superparamagnetic blocking)
Studying dynamic behavior of various magnetic materials synthesized in Ames Lab. Involves wide frequency range measurements, extensive lab work, computer control of the experiment and data analysis.
Correlation between topology and physical properties in the intermediate state of type-I superconductors
Electrochemical and epitaxial deposition of type-I superconductors. Systematic study of the correlation between topology of the intermediate state and electromagnetic properties (involves magneto-optics, AC and DC susceptibility, AC and DC transport, RF penetration depth as well as numerical modeling, image and data analysis).
Quantum critical behavior
use of various AC techniques to measure frequency-dependent susceptibility and conductivity. Two projects available - on non Fermi - liquid metals and on electron-doped superconductors.
Synthesis and characterization of magnetic nanocomposites
The goal is to produce superparamagnetic ceramic nanocomposites for high-frequency high-temperature applications.
Involves sonochemistry, ultrasonic spray-pyrolysis, high-temperature furnaces, electron-microscopy, x-ray, XPS, thermal analysis as well as electro-transport and magnetic susceptibility measurements.
Magneto-optical studies of superconductors
Several projects available, including:
- intermediate state in type-I superconductors
- flux distribution in magnetic superconductors
- flux pinning in superconducting nanocomposites
- flux distribution in samples of non-trivial geometry
Magnetic nanoparticles - powders and ferrofluids
sonochemical synthesis of nanoparticles and ferrofluids. Study of the collective effects by applying a variety of chemical and physical techniques. Particular emphasis on the AC techniques and frequency dependencies of physical quantities. Low-temperature AC susceptibility
construction of a compensated-coil AC susceptometer.
Miniature Hall-probe array magnetometer
construction and use of a miniature magnetometer for measurements of local fields in superconductors and magnetic materials.
Other projects (internship, summer, undergraduate etc) are also available. |
