Carnegie Mellon University

Vincent Sokalski

Vincent Sokalski

Associate Professor of Materials Science and Engineering

Address
Department of Materials Science and Engineering
Carnegie Mellon University
5000 Forbes Avenue
Pittsburgh, PA 15213-3890

Bio

Research Areas: Inorganic Functional Materials | Manufacturing & Materials Microstructure

Professor Sokalski is an Associate Professor in the department of Materials Science & Engineering at Carnegie Mellon University.  He obtained his B.S. in Materials Science & Engineering from the University of Pittsburgh in 2007 followed by M.S. and Ph.D degrees from Carnegie Mellon University in 2009 and 2011 also in Materials Science & Engineering. He spent two years as a postdoctoral fellow in the Electrical and Computer Engineering department at CMU working on spin devices for low-power memory and electronics. He joined the faculty at Carnegie Mellon University in September of 2013 where his research is focused on emerging phenomena in nanoscale magnetic and spintronic materials. He is currently chair of the Pittsburgh chapter of the IEEE magnetics society.

Education

Ph.D., Carnegie Mellon University

Research

Professor Sokalski’s research is on emerging phenomena in magnetic thin films for future computing applications.  With a rapidly growing demand for computational energy, there is a pressing need for new materials and schemes to improve efficiency even if the concepts are radically different from existing technology.  A new magnetic interaction has come to the forefront of physics in recent years called the Dzyaloshinskii-Moriya interaction, which stabilizes exotic magnetic features called Skyrmions.  These features can be manipulated by electric current with unprecedented efficiency making them promising candidates for future computer memory.  Our group is examining new materials using combinatorial approaches to stabilize different kinds of Skyrmions and examine their properties.  We make use of various magnetic characterization and imaging techniques including high resolution Lorentz transmission electron microscopy housed in MSE’s materials characterization suite.

Publications

(Recent selected publications)

  1. Li, M., Rai, A., Pokhrel, A., Sapkota, A., Mewes, C., Mewes, T., ... & Sokalski, V.. Formation of zero-field skyrmion arrays in asymmetric superlatticesApplied Physics Letters117(11), 112403. (2020)
  2. Li, M., Sapkota, A., Rai, A., Pokhrel, A., Mewes, T., Mewes, C., Xiao, D., De Graef, M. J., & Sokalski, V. Experimental observation of magnetic domain wall skyrmions. arXiv preprint arXiv:2004.07888. (2020)
  3. Li, M., Lau, D., De Graef, M. and Sokalski, V., 2018. Lorentz TEM investigation of chiral spin textures and Néel Skyrmions in asymmetric [Pt/(Co/Ni)M/Ir]N multi-layer thin films. Physical Review Materials 3 (6), 064409 (2019)
  4. Lau, D., Pellegren, J.P., Nembach, H.T., Shaw, J.M. and Sokalski, V., 2018. Disentangling factors governing Dzyaloshinskii domain-wall creep in Co/Ni thin films using PtxIr1-x seed layers. Physical Review B, 98(18), p.184410. (2018)
  5. Pellegren, J.P., Lau, D.K., & Sokalski, V. Dispersive Stiffness of Dzyaloshinskii Domain Walls. Physical Review Letters, 119(2), 027203. (2017)