Welcome!
I am a physicist employed by Princeton University to work on the ARO-MURI project
"The Physics of Surface States with Interactions mediated by Bulk Properties,
Defects and Surface Chemistry" (PI: prof. Cava)
In 2012 I completed my PhD studies in Condensed matter physics, with a
thesis on the electronic and many-body
properties of graphene.
Contact
Ivo Pletikosić
Princeton University, Department of Physics
Brookhaven National Laboratory, CMPMS Department
e-mail: ivop@princeton.edu
Metrics
Research
Experimental research in surface physics: structure and many-body effects in ultrathin supported films and nanostructures studied by scanning tunneling microscopy (STM), electron diffraction (LEED) and angle-resolved photoelectron spectroscopy (ARPES)
Topological matter
Topological properties of the momentum-space band structure of certain materials
allow for conductive channels at the surface of otherwise insulating crystals, or for
the increase of crystal's conductivity in the Lorentz force-free configuration of parallel magnetic
and electric fields. Among others, we have synthesized and characterized the first ideal topological insulator,
Sn-doped BiSbTe2S, and reported on the chiral magnetic effect in ZrTe5
(NComms,
NPhys)
Epitaxial graphene on Ir(111)
Graphene is an example of a robust, truly two-dimensional material with
unparalleled electronic properties. Highly ordered single-layer graphene
can be grown on the (111) surface of iridium by hydrocarbon decomposition.
We have studied the electronic properties of such graphene to find the footprints
its superstructural ordering on top of Ir(111) leaves on the bands.
(PRL,
PRB)
Graphene's bands are highly doped by intercalation of alkali atoms. Renormalized bands are found due to electron-phonon coupling. The superstructure is removed, leaving only flat, well ordered, single layer graphene. This enabled us to determine the electron-phonon coupling strength with great precision. (PRB)
Ultrathin metallic films
Electrons in epitaxially grown metallic films can develop
localized states in the form of quantum well states or resonances.
We have studied the growth and structure of such films, the influence
that various substrates have on their electronic states,
as well as many-body effects through electron-phonon coupling.
(PRB,
JPhys,
SurfSci)
Teaching
I served as a teaching assistant (2006–2009) at the Physics department of Faculty of science/University of Zagreb in four undergraduate courses covering Mechanics, Electricity and magnetism, Waves, and introductory Quantum physics. Materials in Croatian are still available at the General physics I–IV course pages.
Projects
- ARPES spectra manipulation procedures for IgorPro enabling their conversion to 2D momentum space, Richardson-Lucy deconvolution of experimental broadening, self-consistent extraction of the self energy from the band renormalization, etc.
- Design and construction of a new experimental setup for high resolution ARPES in our laboratory at Zagreb
- ClassicThesis style for LaTeX & LyX
- POV-Ray modeling and simulations
