Bio

My research interests lie at the intersection of materials science and condensed matter physics. I work on thin film synthesis of oxide and metal systems by molecular-beam epitaxy (MBE). Applications range from answering fundamental physics questions about high temperature superconductivity to developing practical synthesis routines and new materials for next generation electron sources. In addition, I work on projects involving spectroscopic probes of thin film systems, including angle-resolved photoemission spectroscopy (ARPES) and resonant soft x-ray scattering (RSXS) measurements.

Professional Education

  • Doctor of Philosophy, Cornell University, Physics (2023)
  • Master of Science, Cornell University, Physics (2019)
  • Master of Science, The University of New Mexico, Mathematics (2016)
  • Bachelor of Science, University of California, San Diego, Physics & Mathematics (2013)

Stanford Advisors

Contact

  • Academic
    parzyck@stanford.edu
    University - Scholar Department: SLAC National Accelerator Laboratory Position: Postdoctoral Scholar

Additional Info

Links

All Publications

  • Is Ba<sub>3</sub>In<sub>2</sub>O<sub>6</sub> a high-<i>T<sub>c</sub> </i> superconductor? JOURNAL OF PHYSICS-CONDENSED MATTER Hensling, F. E., Dahliah, D., Smeaton, M. A., Shrestha, B., Show, Parzyck, C. T., Hennighausen, C., Kotsonis, G. N., Rignanese, G., Barone, M. R., Subedi, Disa, A. S., Shen, K. M., Faeth, B. D., Bollinger, A. T., Bozovic, Podraza, N. J., Kourkoutis, L. F., Hautier, G., Schlom, D. G. 2024; 36 (31)

    Abstract

    It has been suggested that Ba3In2O6might be a high-Tcsuperconductor. Experimental investigation of the properties of Ba3In2O6was long inhibited by its instability in air. Recently epitaxial Ba3In2O6with a protective capping layer was demonstrated, which finally allows its electronic characterization. The optical bandgap of Ba3In2O6is determined to be 2.99 eV in-the (001) plane and 2.83 eV along thec-axis direction by spectroscopic ellipsometry. First-principles calculations were carried out, yielding a result in good agreement with the experimental value. Various dopants were explored to induce (super-)conductivity in this otherwise insulating material. NeitherA- norB-site doping proved successful. The underlying reason is predominately the formation of oxygen interstitials as revealed by scanning transmission electron microscopy and first-principles calculations. Additional efforts to induce superconductivity were investigated, including surface alkali doping, optical pumping, and hydrogen reduction. To probe liquid-ion gating, Ba3In2O6was successfully grown epitaxially on an epitaxial SrRuO3bottom electrode. So far none of these efforts induced superconductivity in Ba3In2O6,leaving the answer to the initial question of whether Ba3In2O6is a high-Tcsuperconductor to be 'no' thus far.

    View details for DOI 10.1088/1361-648X/ad42f3

    View details for Web of Science ID 001219447200001

    View details for PubMedID 38657622

  • Surface reconstructions and electronic structure of metallic delafossite thin films APL MATERIALS Song, Q., He, Z., Faeth, B. D., Parzyck, C. T., Scheid, A., Mowers, C. J., Feng, Y., Xu, Q., Hasko, S., Park, J., Barone, M. R., Suyolcu, Y., van Aken, P. A., Pamuk, B., Fennie, C. J., King, P. C., Shen, K. M., Schlom, D. G. 2024; 12 (8)

    View details for DOI 10.1063/5.0217540

    View details for Web of Science ID 001291956900004

  • Absence of 3<i>a</i><sub>0</sub> charge density wave order in the infinite-layer nickelate NdNiO<sub>2</sub> NATURE MATERIALS Parzyck, C. T., Gupta, N. K., Wu, Y., Anil, V., Bhatt, L., Bouliane, M., Gong, R., Gregory, B. Z., Luo, A., Sutarto, R., He, F., Chuang, Y., Zhou, T., Herranz, G., Kourkoutis, L. F., Singer, A., Schlom, D. G., Hawthorn, D. G., Shen, K. M. 2024; 23 (4): 486-491

    Abstract

    A hallmark of many unconventional superconductors is the presence of many-body interactions that give rise to broken-symmetry states intertwined with superconductivity. Recent resonant soft X-ray scattering experiments report commensurate 3a0 charge density wave order in infinite-layer nickelates, which has important implications regarding the universal interplay between charge order and superconductivity in both cuprates and nickelates. Here we present X-ray scattering and spectroscopy measurements on a series of NdNiO2+x samples, which reveal that the signatures of charge density wave order are absent in fully reduced, single-phase NdNiO2. The 3a0 superlattice peak instead originates from a partially reduced impurity phase where excess apical oxygens form ordered rows with three-unit-cell periodicity. The absence of any observable charge density wave order in NdNiO2 highlights a crucial difference between the phase diagrams of cuprate and nickelate superconductors.

    View details for DOI 10.1038/s41563-024-01797-0

    View details for Web of Science ID 001152202500001

    View details for PubMedID 38278983

    View details for PubMedCentralID PMC10990928

https://orcid.org/0000-0002-3835-7115