Ph.D., 1997, Pennsylvania
Maxine S. and Jesse W. Beams Professor of Physics
Experimental Condensed Matter Physics
The interactions of the spin, charge and lattice degrees of freedom often lead to emerging properties such as spin and charge density waves, superconductivity and quantum spin liquid states. The class of materials that are of interest to the Louca group includes topological insulators and semimetals, spintronic antiferromagnets of the I-Mn-V class, transition metal dichalcogenides, disorder superconductors, layered semiconductors etc. Understanding the macroscopic functionality of these systems can potentially be very useful for industrial applications. Louca’s research focuses on understanding their responses as a function of temperature, pressure, and magnetic fields by probing the atomic and magnetic structures and dynamics using scattering techniques performed at national and international neutron and X-ray facilities. The group makes use of analysis tools combined with modeling to examine atomic correlations at very small length scales under extreme conditions, probes lattice dynamics and magnetic interactions. The group is also involved with materials synthesis and characterization of the bulk properties.
6. "Local trigonal modes and the suppression of the charge density wave in TiSe2-xTex", A Wegner, D Louca, J Yang, Physical Review B 99 (20), 205110 (2019).
7.“Emergence of topologically protected states in MoTe2 Weyl semimetal with layer stacking order”, J. A. Schneeloch, C. Duan, J. Yang, J. Liu, X. Wang, and D. Louca, Phys. Rev. B. 99, 161105(R) (2019).