Defects in Topological Materials

Presentations

• Lyapunov theory of disordered non-Hermitian topological systems

  Oral-In-person

  March 19, 2026, 12:00 PM – March 19, 2026, 12:12 PM

  Publication: C. Fortin, K. Wang and T. Pereg-Barnea, Unifying Anderson transitions and topological amplification in non-Hermitian chains, preprint (2025). arXiv:2509.05842

  Presenters

  • Clément Fortin

    • McGill University

  Authors

  • Clément Fortin

    • McGill University

  • Kai Wang

  • Tami Pereg-Barnea

    • McGill University

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• Phase diagram of amorphous quantum spin Hall insulators

  Oral-In-person

  March 19, 2026, 12:12 PM – March 19, 2026, 12:24 PM

  Publication: Ranadeep Roy, Yuanming Lu, Phase diagram of amorphous quantum spin Hall insulator (manuscript in preparation)

  Presenters

  • Ranadeep Roy

    • Ohio State University

  Authors

  • Ranadeep Roy

    • Ohio State University

  • Yuanming Lu

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• Conventional crystal defect as a probe of topology

  Oral-In-person

  March 19, 2026, 12:24 PM – March 19, 2026, 12:36 PM

  Presenters

  • Aiden Mains

    • Lehigh University

  Authors

  • Aiden Mains

    • Lehigh University

  • Bitan Roy

    • Lehigh University

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• Vortex-enhanced photovoltaic current in disordered topological semimetals (Part 1)

  Oral-In-person

  March 19, 2026, 12:36 PM – March 19, 2026, 12:48 PM

  Presenters

  • Aris Alexandradinata

    • University of California Santa Cruz

  Authors

  • Aris Alexandradinata

    • University of California Santa Cruz

  • Penghao Zhu

  • Pavlo Sukhachov

    • University of Missouri

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• Vortex-enhanced photovoltaic current in disordered topological semimetals (Part 2)

  Oral-In-person

  March 19, 2026, 12:48 PM – March 19, 2026, 1:00 PM

  Presenters

  • Penghao Zhu

    • Ohio State University

  Authors

  • Penghao Zhu

    • Ohio State University

  • Aris Alexandradinata

    • University of California Santa Cruz

  • Pavlo Sukhachov

    • University of Missouri

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• How disordered integer topological insulators become trivial: Prominent case studies in static and Floquet crystals

  Oral-In-person

  March 19, 2026, 1:00 PM – March 19, 2026, 1:12 PM

  Presenters

  • Daniel Salib

    • Lehigh University

  Authors

  • Daniel Salib

    • Lehigh University

  • Bitan Roy

    • Lehigh University

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• Non-invertible defects in generalized Ising models via strange correlator

  Oral-In-person

  March 19, 2026, 1:12 PM – March 19, 2026, 1:24 PM

  Presenters

  • Aswin Parayil Mana

    • Stony Brook University (SUNY)

  Authors

  • Aswin Parayil Mana

    • Stony Brook University (SUNY)

  • Yaman Sanghavi

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• Chirality reversal at finite magnetic impurity strength and local signatures of a topological phase transition

  Oral-In-person

  March 19, 2026, 1:24 PM – March 19, 2026, 1:36 PM

  Publication: https://arxiv.org/abs/2510.11707

  Presenters

  • Itamar Kimchi

    • Georgia Institute of Technology

  Authors

  • Ruiqi Xu

  • ARNAB SETH

    • Georgia Institute of Technology

  • Itamar Kimchi

    • Georgia Institute of Technology

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• Impurity effects on photo-induced multiply quantized electronic vortices

  Oral-In-person

  March 19, 2026, 1:36 PM – March 19, 2026, 1:48 PM

  Publication: Trevor W. Walsh, Eric E. Caldwell, et. al, in prep, (2025)

  Presenters

  • Eric Caldwell

    • Ohio University

  Authors

  • Eric Caldwell

    • Ohio University

  • Trevor Walsh

    • Ohio University

  • Kieran MacDonald

    • Kennesaw State University

  • Mahmoud Asmar

    • Kennesaw State University

  • Nancy Sandler

    • Ohio University

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• Detecting Higher Berry Phases via Boundary Scattering

  Oral-In-person

  March 19, 2026, 1:48 PM – March 19, 2026, 2:00 PM

  Presenters

  • Chih-Yu Lo

    • Georgia Institute of Technology

  Authors

  • Chih-Yu Lo

    • Georgia Institute of Technology

  • Xueda Wen

    • Georgia Institute of Physics

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• Tilt-Induced Phase Transition in Dirac Systems

  Oral-In-person

  March 19, 2026, 2:00 PM – March 19, 2026, 2:12 PM

  Presenters

  • Swadeepan Nanda

    • University of Houston

  Authors

  • Swadeepan Nanda

    • University of Houston

  • Pavan Hosur

    • University of Houston

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• Characterization of Dislocation Conduction in Strained Bismuth Antimony Alloys using Corbino Geometry Contacts

  Oral-In-person

  March 19, 2026, 2:12 PM – March 19, 2026, 2:24 PM

  Presenters

  • Joseph Essman

    • University of Michigan- Ann Arbor

  Authors

  • Joseph Essman

    • University of Michigan- Ann Arbor

  • Sam Frisone

    • University of Michigan

  • Zecheng You

    • University of Michigan

  • Shriya Sinha

    • University of Michigan

  • Alon Avidor

  • Ctirad Uher

    • University of Michigan

  • Rachel Goldman

    • University of Michigan

  • Cagliyan Kurdak

    • University of Michigan

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• Survey of Sn and S Surface Terminations and Sulfur Migration on Co₃Sn₂S₂ With Experimental STM Measurements

  Oral-In-person

  March 19, 2026, 2:24 PM – March 19, 2026, 2:36 PM

  Presenters

  • Shirley Chiang

    • University of California, Davis

  Authors

  • Shirley Chiang

    • University of California, Davis

  • Sophie Miller

    • University of California Davis

  • Kazuaki Hatano

    • University of California Davis

  • Zihao Shen

  • Valentin Taufour

    • UC Davis

  • Mingkun Chen

    • University of California, Davis

  • Inna Vishik

    • University of California, Davis

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