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Physics and Astronomy A. Mantilla

Alexander B. C. Mantilla

I am a Ph.D. candidate in Materials Science and Engineering working for Professor Yi Gu. Due to the nature of my research, I primarily work at Pacific Northwest National Laboratory in Richland, WA.

My research includes the ultrasensitive detection and nanoscale characterization of various chemicals at spatial resolutions well above what is allowed by optical diffraction limits. I am primarily interested in characterizing ferroelectric domain walls in thin film α-In2Se3. Ferroelectric domain walls are only a few nanometers wide, and therefore far too small to be characterized by conventional optical spectroscopy. Using tip-enhanced spectroscopy, I can bypass diffraction limits and work towards uncovering the previously hidden structural and electronic properties of ferroelectric domain walls.

I received my B.Sc. in Physics from Central Washington University in 2020. In undergrad, my research was split between ferromagnetic characterization of doped Ca3Co2-xRxO6 (R = Mn, Zn, and V) near absolute zero, and computational modeling of mean squared displacement for particle diffusion as a lesson plan for biophysics teaching.

My full CV can be viewed here: (Link).

My Google Scholar page can be found here: (Link)

My publications are below:

  1. Mantilla, A. B. C.; Matthews, B. E.; Gu, Y.; El-Khoury, P. Z. Selective Plasmon-Induced Oxidation of 4-Aminothiophenol on Silver Nanoparticles. The Journal of Physical Chemistry C 2023, 127 (17), 8048-8053.
  2. Wang, C.-F.; Mantilla, A. B. C.; Gu, Y.; El-Khoury, P. Z. Ambient Tip-Enhanced Two Photon Photoluminescence from CdSe/ZnS Quantum Dots. The Journal of Physical Chemistry A 2023, 127 (4), 1081-1084.
  3. Mantilla, A. B. C.; Wang, C.-F.; Gu, Y.; Schultz, Z. D.; El-Khoury, P. Z. Multipolar Raman Scattering vs Interfacial Nanochemistry: Case of 4-Mercaptopyridine on Gold. Journal of the American Chemical Society 2022, 144 (45), 20561-20565.
  4. Mantilla, A. B. C.; Kuwada, N. J. A Flexible Laboratory Exercise Introducing Practical Aspects of Mean Squared Displacement. The Biophysicist 2021, 2 (1), 126-136.
  5. White, B. D.; Mantilla, A. B. C.; Jesenovec, J. Reduced magnetic disorder at low temperature in Ca3Co2O6 via zinc substitution. Philosophical Magazine 2020, 100 (10), 1226-1243.
Alexander Mantilla

Office: Webster Physical Sciences 934