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The CeMIn5 (M = Rh, Ir and Co) System and the Single Energy Scale Model of Metamagnetism
A. Thamizhavel, B. D. White, M. B. Maple +5
For a decade and a half, CeCoIn and related alloys have served as a rich playground to explore the interplay between magnetism and unconventional superconductivity. Despite thi…
Two-dimensional disorder in black phosphorus and monochalcogenide monolayers
Mehrshad Mehboudi, Alex M. Dorio, Wenjuan Zhu +6
Ridged, orthorhombic two-dimensional atomic crystals with a bulk {\em Pnma} structure such as black phosphorus and monochalcogenide monolayers are an exciting and novel material pl…
Proximate transition temperatures amplify linear magnetoelectric coupling in strain-disordered multiferroic BiMnO3
Patrick R. Mickel, Hyoungjeen Jeen, Pradeep Kumar +2
We report a giant linear magnetoelectric coupling in strained BiMnO3 thin films in which the disorder associated with an islanded morphology gives rise to extrinsic relaxor ferroel…
Graphene Ripples as a Realization of a Two-Dimensional Ising Model: A Scanning Tunneling Microscope Study
J. K. Schoelz, P. Xu, V. Meunier +4
Ripples in pristine freestanding graphene naturally orient themselves in an array that is alternately curved-up and curved-down; maintaining an average height of zero. Using scanni…
Spectroscopic Studies of Iron-based Superconductors, Multi-ferroic Oxides and Double-perovskite: Phonons, Electronic and Spin Excitations
Pradeep Kumar
Raman spectroscopy is a very powerful probe to study the nature of quasi-particle excitations in condensed matter physics. The work presented in this thesis is focused on two diffe…