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Judy Cha

Judy J. 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.


Yale Arthur Greer Memorial Prize, 2016.

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

IBM Faculty Award, 2014.

Silver Student Award, Materials Research Society, 2008.

Relevant Publications

P. Kumaravadivel, G. A. Pan, Y. Zhou, Y. Xie, P. Liu, J. J. Cha, “Synthesis and superconductivity of In-doped SnTe nanostructures,” APL Materials 5, 076110, 2017.

J.M. Woods, J. Shen, P. Kumaravadivel, Y. Pang, Y. Xie, G. A. Pan, M. Li, E. I. Altman, L. Lu, J. J. Cha, “Suppression of magnetoresistance in thin WTe2 flakes by surface oxidation,” ACS Appl. Mater. Interfaces 9, p.23175-23180, 2017.

J. Shen, J. M. Woods, Y. Xie, M. D. Morales-Acosta, J. J. Cha, “Structural phase transition and carrier density tuning in SnSexTe1-x nanoplates,” Adv. Elec. Mater. 2, 1600144, 2016.

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

J. Shen, Y. Jung, A. S. Disa, F. J. Walker, C. H. Ahn, J. J. Cha, “Synthesis of SnTe nanoplates with {100} and {111} surfaces,” Nano Lett. 14, p.4183-4188, 2014.



CIFAR Azrieli Global Scholar Quantum Materials


Yale UniversityMechanical Engineering and Materials Science


BA Sc. Simon Fraser University

PhD in Applied Physics Cornell University

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