Multiferroics: Optical, Transport, and Nonreciprocal Phenomena

Presentations

• Uncovering the nature of superconductivity in the geometrically frustrated LiTi₂O₄

  Invited-In-person · Invited

  March 18, 2026, 12:00 PM – March 18, 2026, 12:36 PM

  Publication: Z. Hasan et al. "Unconventional polaronic ground state in superconducting LiTi2O4." arXiv preprint arXiv:2505.09762 (2025).

  Presenters

  • Julia Mundy

    • Harvard University

  Authors

  • Julia Mundy

    • Harvard University

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• Nonlinear Optical Responses in 2D Multiferroic VOX₂ (X=Cl, Br, I)

  Oral-In-person

  March 18, 2026, 12:36 PM – March 18, 2026, 12:48 PM

  Presenters

  • Chengdong Wang

    • Texas A&M University

  Authors

  • Chengdong Wang

    • Texas A&M University

  • Alex Strasser

    • Texas A&M University College Station

  • Hektor Cissik

  • Xiaofeng Qian

    • Texas A&M University College Station

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• Optical diode effect at telecom wavelengths in a polar magnet

  Oral-In-person

  March 18, 2026, 12:48 PM – March 18, 2026, 1:00 PM

  Presenters

  • Kevin Smith

    • University of Tennessee

  Authors

  • Kevin Smith

    • University of Tennessee

  • Yanhong Gu

    • Brookhaven National Laboratory (BNL)

  • Xianghan Xu

    • University of Minnesota, Twin Cities

  • Heung-Sik Kim

    • Kangwon National University

  • Sang-Wook Cheong

    • Rutgers University

  • Scott Crooker

    • Los Alamos National Laboratory (LANL)

  • Janice Musfeldt

    • University of Tennessee

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• Nonreciprocal directional dichroism in rare-earth excitations of chiral Er-containing oxides

  Oral-In-person

  March 18, 2026, 1:00 PM – March 18, 2026, 1:12 PM

  Presenters

  • Daniel Morris

    • University of Tennessee- Knoxville

  Authors

  • Daniel Morris

    • University of Tennessee- Knoxville

  • Kevin Smith

    • University of Tennessee

  • Sang-Wook Cheong

    • Rutgers University

  • Choongjae Won

    • Pohang Univ of Sci & Tech

  • Stephen McGill

    • National High Magnetic Field Laboratory

  • Yanhong Gu

    • Institute of Physics

  • Heung-Sik Kim

    • Kangwon National University

  • Janice Musfeldt

    • University of Tennessee

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• Hafnia under pressure

  Invited-In-person · Invited

  March 18, 2026, 1:12 PM – March 18, 2026, 1:48 PM

  Publication: "Vibrational fingerprints of ferroelectric HfO2", S. Fan, S. Singh, X. Xu, K. Park, Y. Qi, S. W. Cheong, D. Vanderbilt, K. M. Rabe, and J. L. Musfeldt, npj Quant. Mater. 7, 32 (2022).
  
  "Structural phase purification of bulk HfO2:Y through pressure cycling", J. L. Musfeldt, S. Singh, S. Fan, Y. Gu, X. Xu, S. -W. Cheong, Z. Liu, D. Vanderbilt, and K. M. Rabe, Proceedings of the National Academy of Sciences, 121, e2312571121 (2024).
  
  "Pressure-driven polar orthorhombic to tetragonal phase transition in hafnia at room temperature", J. L. Musfeldt, S. Singh, K. A. Smith, X. Xu, S. -W. Cheong, Z. Liu, D. Vanderbilt, and K. M. Rabe, Chemistry of Materials 37, 1820 (2025).

  Presenters

  • Janice Musfeldt

    • University of Tennessee

  Authors

  • Janice Musfeldt

    • University of Tennessee

  • Sobhit Singh

  • Kevin Smith

    • University of Tennessee

  • Yanhong Gu

    • Institute of Physics

  • Xianghan Xu

    • University of Minnesota, Twin Cities

  • Sang-Wook Cheong

    • Rutgers University

  • Zhenxian Liu

    • University of Illinois at Chicago

  • David Vanderbilt

    • Rutgers University

  • Karin Rabe

    • Rutgers University

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• Current control of spin helicity and nonreciprocal charge transport in a multiferroic conductor

  Oral-In-person

  March 18, 2026, 1:48 PM – March 18, 2026, 2:00 PM

  Publication: Daiki Yamaguchi, Aki Kitaori, Naoto Nagaosa, Yoshinori Tokura, Advanced Materials 37, 2420614 (2025).

  Presenters

  • Daiki Yamaguchi

    • Univ of Tokyo

  Authors

  • Daiki Yamaguchi

    • Univ of Tokyo

  • Aki Kitaori

  • Naoto Nagaosa

  • Yoshinori Tokura

    • Univ of Tokyo

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• Experimental Evidence for a Polarization Current via its Peltier Effect

  Oral-In-person

  March 18, 2026, 2:00 PM – March 18, 2026, 2:12 PM

  Presenters

  • Delaram Rashadfar

    • Ohio State University

  Authors

  • Delaram Rashadfar

    • Ohio State University

  • Joseph Heremans

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• Pressure-tuned plethora of ferroelectric phases in CuInP₂S₆

  Oral-In-person

  March 18, 2026, 2:12 PM – March 18, 2026, 2:24 PM

  Publication: This work is already submitted to "npj 2D materials and application".

  Presenters

  • Sambridhi Shah

    • University of Tennessee

  Authors

  • Sambridhi Shah

    • University of Tennessee

  • Pegah Mohammadi

    • University of Rochester

  • Bess Singidas

  • Kevin Smith

    • University of Tennessee

  • Yanhong Gu

    • Brookhaven National Laboratory (BNL)

  • Luther Langston

  • Brian Taylor

    • University of Tennessee- Knoxville

  • Ryan Siebenaller

  • Michael Susner

    • Air Force Research Laboratory (AFRL)

  • Sang-Wook Cheong

    • Rutgers University

  • Hirokazu Kadobayashi

  • Roland Sarmago

  • Zhenxian Liu

    • University of Illinois at Chicago

  • Takahiro Matsuoka

  • Sobhit Singh

  • Janice Musfeldt

    • University of Tennessee

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• First-Principles Insights into Layer-by-Layer Polarization Reversal in van der Waals Ferroelectric CuInP₂S₆

  Oral-In-person

  March 18, 2026, 2:24 PM – March 18, 2026, 2:36 PM

  Publication: Pegah Mohammadi, and Sobhit Singh, Physical Review B 112, 125205 (2025).

  Presenters

  • Pegah Mohammadi

    • University of Rochester

  Authors

  • Pegah Mohammadi

    • University of Rochester

  • Sobhit Singh

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• Pronounced Spin-Lattice Coupling in the Ferroelastic Altermagnet Ca₂Fe₂O₅

  Oral-In-person

  March 18, 2026, 2:36 PM – March 18, 2026, 2:48 PM

  Presenters

  • Xianghan Xu

    • University of Minnesota, Twin Cities

  Authors

  • Xianghan Xu

    • University of Minnesota, Twin Cities

  • Daniel Faragher

  • Luca Buiarelli

  • Brayden Lukaskawcez

    • University of Minnesota

  • Sudarshan Sharma

    • University of Minnesota

  • Richard Spieker

    • University of Minnesota

  • Martin Greven

    • University of Minnesota

  • Alexander S. McLeod

  • Turan Birol

    • University of Minnesota

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