Judy Cha



  • CIFAR Azrieli Global Scholar 2017-2019
  • Quantum Materials


  • Yale University
Department of Mechanical Engineering and Materials Science


  • United States


PhD (Applied Physics), Cornell University
BA Sc, Simon Fraser University


Judy Cha aims to make nanostructures of topological materials for fundamental studies and electronic applications.

Her group focuses on realizing a one-dimensional topological superconductor for fault-tolerant quantum computations. Novel electronic states can emerge in 1D geometry at the nanoscale, such as the Majorana fermion excitations. One way to achieve this is to induce superconductivity in topological crystalline insulator nanowires. Cha’s group has demonstrated the first synthesis and transport measurements on nanowire forms.


Arthur Greer Memorial Prize, Yale University, 2016

Carol and Douglas Melamed Assistant Professor Chairship, Yale University, 2015

IBM Faculty Award, 2014

Silver Student Award, Materials Research Society, 2008

Relevant Publications

Kumaravadivel, P. et al. “Synthesis and superconductivity of In-doped SnTe nanostructures.” APL Materials 5 (2017).

Woods, J.M. et al. “Suppression of magnetoresistance in thin WTe2 flakes by surface oxidation.” ACS Appl. Mater. Interfaces 9 (2017): 23175–23180.

Shen, J. et al. “Structural phase transition and carrier density tuning in SnSexTe1-x nanoplates.” Adv. Elec. Mater. 2 (2016).

Shen, J., Y. Xie, and J.J. Cha. “Revealing surface states in In-doped SnTe nanoplates with low bulk mobility.” Nano Lett. 15 (2015): 3827–3832.

Shen, J. et al. “Synthesis of SnTe nanoplates with {100} and {111} surfaces.” Nano Lett. 14 (2014): 4183–4188.