
Jon-Paul’s research group, J.-P. Maria Group, pursues new materials discovery, property engineering, advances in synthesis science, and new integration strategies to merge diverse materials. Laboratory activities of interest include physical vapor deposition, ceramic synthesis by powder processing, structural characterization by diffraction, and microstructure measurement using scanning probe and scanning electron microscopy. The J.-P. Maria group manages a 1,500-square-foot vacuum processing lab that hosts nine sputter tools, e-beam evaporation, and two laser ablation systems. The J.-P. Maria Group members currently pursue research in the areas of ferroelectric thin films, high permittivity materials, novel semiconductor contacts, oxide epitaxy, infra-red plasmonic materials, and entropy engineered/stabilized crystals.
Maria's research focuses on the processing science issues associated with synthesizing integrated systems for intelligent microwave communication, telemetry, and radar systems. Specifically, his team designs and fabricates microwave circuit components using novel materials, processing conditions, and integration approaches. A specific focus of this work is to replace expensive or difficult-to-manufacture materials with inexpensive alternatives that do not compromise performance. This requires that they fundamentally understand the materials science of processing as, in many cases, they are dealing with system components that have narrow windows of stability.
In the News
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Recent Publications
Order evolution from a high-entropy matrix: Understanding and predicting paths to low-temperature equilibrium
Almishal, S. S. I., Miao, L., Tan, Y., Kotsonis, G. N., Sivak, J. T., Alem, N., Chen, L. Q., Crespi, V. H., Dabo, I., Rost, C. M., Sinnott, S. B. & Maria, J. P., Feb 2025, In: Journal of the American Ceramic Society. 108, 2, e20223.Research output: Contribution to journal › Article › peer-review
Local structure maturation in high entropy oxide (Mg,Co,Ni,Cu,Zn)1-x(Cr,Mn)xO thin films
Niculescu, G. E., Bejger, G. R., Barber, J. P., Wright, J. T., Almishal, S. S. I., Webb, M., Ayyagari, S. V. G., Maria, J. P., Alem, N., Heron, J. T. & Rost, C. M., Feb 2025, In: Journal of the American Ceramic Society. 108, 2, e20171.Research output: Contribution to journal › Article › peer-review
Phase-field study of precipitate morphology in epitaxial high-entropy oxide films
Tan, Y., Sivak, J. T., Almishal, S. S. I., Maria, J. P., Sinnott, S. B., Ji, Y. & Chen, L.-Q., Mar 1 2025, In: Acta Materialia. 286, 120721.Research output: Contribution to journal › Article › peer-review
Untangling individual cation roles in rock salt high-entropy oxides
Almishal, S. S. I., Sivak, J. T., Kotsonis, G. N., Tan, Y., Furst, M., Srikanth, D., Crespi, V. H., Gopalan, V., Heron, J. T., Chen, L. Q., Rost, C. M., Sinnott, S. B. & Maria, J. P., Oct 15 2024, In: Acta Materialia. 279, 120289.Research output: Contribution to journal › Article › peer-review
Strain Fluctuations Unlock Ferroelectricity in Wurtzites
Baksa, S. M., Gelin, S., Oturak, S., Spurling, R. J., Sepehrinezhad, A., Jacques, L., Trolier-McKinstry, S. E., van Duin, A. C. T., Maria, J. P., Rappe, A. M. & Dabo, I., 2024, (Accepted/In press) In: Advanced Electronic Materials.Research output: Contribution to journal › Article › peer-review
Structural Evolution of Alloyed Aluminum Nitride Heterostructures
Calderon, S. V., Skidmore, C., Maria, J. P. & Dickey, E. C., Jul 24 2024, In: Microscopy and Microanalysis. 30, 2024, p. 1268-1269 2 p.Research output: Contribution to journal › Conference article › peer-review
Effect of boron concentration on local structure and spontaneous polarization in AlBN thin films
Calderon V, S., Hayden, J., Delower, M., Maria, J. P. & Dickey, E. C., Feb 1 2024, In: APL Materials. 12, 2, 021105.Research output: Contribution to journal › Article › peer-review
Ferroelectric Al1−xBxN-GaN heterostructures
Casamento, J., He, F., Skidmore, C., Hayden, J., Nordlander, J., Redwing, J. M., Trolier-McKinstry, S. & Maria, J. P., Apr 1 2024, In: Applied Physics Letters. 124, 14, 142101.Research output: Contribution to journal › Article › peer-review
Perspectives and progress on wurtzite ferroelectrics: Synthesis, characterization, theory, and device applications
Casamento, J., Baksa, S. M., Behrendt, D., Calderon, S., Goodling, D., Hayden, J., He, F., Jacques, L., Lee, S. H., Smith, W., Suceava, A., Tran, Q., Zheng, X., Zu, R., Beechem, T., Dabo, I., Dickey, E. C., Esteves, G., Gopalan, V. & Henry, M. D. & 9 others, , Feb 19 2024, In: Applied Physics Letters. 124, 8, 080501.Research output: Contribution to journal › Short survey › peer-review
Laterally Modulating Carrier Concentration by Ion Irradiation in CdO Thin Films for Mid-IR Plasmonics
Cleri, A. J., He, M., Tolchin, M. J., Gubbin, C., Lang, E., Hattar, K., De Liberato, S., Caldwell, J. D. & Maria, J. P., Oct 24 2024, In: Advanced Optical Materials. 12, 30, 2401009.Research output: Contribution to journal › Article › peer-review
A priori procedure to establish spinodal decomposition in alloys
Divilov, S., Eckert, H., Toher, C., Friedrich, R., Zettel, A. C., Brenner, D. W., Fahrenholtz, W. G., Wolfe, D. E., Zurek, E., Maria, J. P., Hotz, N., Campilongo, X. & Curtarolo, S., Mar 1 2024, In: Acta Materialia. 266, 119667.Research output: Contribution to journal › Article › peer-review
Disordered enthalpy–entropy descriptor for high-entropy ceramics discovery
Divilov, S., Eckert, H., Hicks, D., Oses, C., Toher, C., Friedrich, R., Esters, M., Mehl, M. J., Zettel, A. C., Lederer, Y., Zurek, E., Maria, J. P., Brenner, D. W., Campilongo, X., Filipović, S., Fahrenholtz, W. G., Ryan, C. J., DeSalle, C. M., Crealese, R. J. & Wolfe, D. E. & 2 others, , Jan 4 2024, In: Nature. 625, 7993, p. 66-73 8 p.Research output: Contribution to journal › Article › peer-review
A super-hard high entropy boride containing Hf, Mo, Ti, V, and W
Filipovic, S., Obradovic, N., Hilmas, G. E., Fahrenholtz, W. G., Brenner, D. W., Maria, J. P., Wolfe, D. E., Zurek, E., Campilongo, X. & Curtarolo, S., Jul 2024, In: Journal of the American Ceramic Society. 107, 7, p. 4430-4435 6 p.Research output: Contribution to journal › Article › peer-review
Characterization of Mg-Alloyed Zinc Oxide Thin Films for Memory Devices via Transmission Electron Microscopy Analyses
Günay, E., Sebastian Calderon, V., Spurling, J., Maria, J. P. & Dickey, E. C., Jul 24 2024, In: Microscopy and Microanalysis. 30, 2024, p. 1192-1193 2 p.Research output: Contribution to journal › Conference article › peer-review
Frequency dependence of wake-up and fatigue characteristics in ferroelectric Al0.93B0.07N thin films
He, F., Zhu, W., Hayden, J., Casamento, J., Tran, Q., Kang, K., Song, Y., Akkopru-Akgun, B., Yang, J. I., Tipsawat, P., Brennecka, G., Choi, S., Jackson, T. N., Maria, J. P. & Trolier-McKinstry, S., Mar 1 2024, In: Acta Materialia. 266, 119678.Research output: Contribution to journal › Article › peer-review