PHY 202 Heat, Electricity, and Optics
DDEME 200 Engineering Thermodynamics
DDEME 270 Basic Mechanics I: Statics
PHY 230 Electronics
DDEME 274 Basic Mechanics II: Dynamics
My research is in electricity and magnetism in nanomaterials and thin films. The thin films I work with are on the thickness of several nanometers each, which, at this thickness, exhibit different electrical and magnetic properties than bulk materials. As an example, iron exhibits magnetism in a different way as a film than it does as a slab.
Specifically, I am interested in what happens when these thin films are combined together. When a film possessing ferromagnetic properties is layered with a film possessing ferroelectric properties, the resulting heterostructure allows for control of magnetic properties with electricity and electric properties with magnetism.
J. Li, L. Luo, J. Carvell, R. Cheng, T. Lai, and Z. Wang, “Shot-Noise-Limited Optical Faraday Polarimetry with Enhanced Laser Noise Cancelling” J. Appl. Phys. 115 103101 (2014).
J. Carvell, R. Cheng, P. A. Dowben, and Q. Yang “Induced Magnetoelectric Coupling in Ferroelectric/Ferromagnetic Interfaces” Appl. Phys. Lett. 103, 072902 (2013).
J. Carvell, R. Cheng, and Q. Yang, “Induced magneto-electric coupling at ferroelectric/ferromagnetic interface” J. App. Phys. Proceedings of the 12th Joint MMM-Intermag Conference, 17C715 (2013).
J. Carvell, and R. Cheng, “Study of electric polarization hysteresis in ferroelectric polyvinylidene fluoride films” Mater. Lett. 64, 1992 (2010).
R. Cheng, J. Carvell, and F.Y. Fradin, “Room temperature electron transport properties of single C60 studied using scanning tunneling microscope and break junctions” J. Appl. Phys. 108, 053720 (2010).
J. Carvell, E. Ayieta, A. Gavrin, R. Cheng, V.R. Shah, and P. Sokol, “Magnetic properties of iron nanoparticles” J. Appl. Phys. 107, 103913 (2010).
E. Ayieta, J. Carvell, R. Cheng, and Y.B. Losovyj, “Angle resolved photoemission study of surface states on the Pt(997) vicinal surface” Phys. Lett. A 374, 3080 (2010).
J. Carvell, E. Ayieta, M. Johnson, and R. Cheng, “Characterization of iron nanoparticles synthesized by high pressure sputtering” Mater. Lett. 63, 715 (2009).