This is a complete list of my publications. Citation information can be found on my Google Scholar page.

Spin-lattice Coupling in Layered Magnets

Sub-picosecond coherent magnetophononic coupling in MnBi2Te4
H. Padmanabhan*, M. Poore*, P. Kim*, N. Z. Koocher, V. A. Stoica, D. Puggioni, H. Wang, X. Shen, A. H. Reid, M. Gu, M. Wetherington, S. H. Lee, R. Schaller, Z. Mao, A. M. Lindenberg, X. Wang, J. M. Rondinelli, R. D. Averitt, V. Gopalan. *equal contributions
arXiv:2104.08356

Intertwined lattice deformation and magnetism in monovacancy graphene.
H. Padmanabhan, B. R. K. Nanda.
Physical Review B 2016

Unconventional Ferroelectrics

Direct observation of symmetry-breaking in a ferroelectric polar metal.
E. Berger, S. Jamnuch, C. Uzundal, C. Woodahl, H. Padmanabhan, Angelique Amado, Paul Manset, Yasuyuki Hirata, Iwao Matsuda, Venkatraman Gopalan, Yuya Kubota, Shigeki Owada, Kensuke Tono, Makina Yabashi, Craig Schwartz, Walter Drisdell, John Freeland, Tod Pascal, Michael Zuerch.
arXiv:2010.03134

MnFe0.5Ru0.5O3: an above-room-temperature antiferromagnetic semiconductor.
X. Tan, E. E. McCabe, F. Orlandi, P. Manuel, M. Batuk, J. Hadermann, Z. Deng, C. Jin, I. Nowik, R. Herber, C. U. Segre, S. Liu, M. Croft, C-J. Kang, S. Lapidus, C. E. Frank, H. Padmanabhan, V. Gopalan, M. Wu, M-R. Li, G. Kotliar, D. Walker, M. Greenblatt.
Journal of Materials Chemistry C 2019

Hybrid Improper Ferroelectricity in (Sr,Ca)3Sn2O7 and Beyond: Universal Relationship between Ferroelectric Transition Temperature and Tolerance Factor in n = 2 Ruddlesden–Popper Phases.
S. Yoshida, H. Akamatsu, R. Tsuji, O. Hernandez, H. Padmanabhan, A. S. Gupta, A. S. Gibbs, K. Mibu, S. Murai, J. M. Rondinelli, V. Gopalan, K. Tanaka, K. Fujita. 
Journal of the American Chemical Society 2018

Linear and nonlinear optical probe of the ferroelectric-like phase transition in a polar metal, LiOsO3.
H. Padmanabhan, Y. Park, D. Puggioni, Y. Yuan, Y. Cao, L. Gasparov, Y. Shi, J. Chakhalian, J. Rondinelli, V. Gopalan.
Applied Physics Letters 2018

Ferroelectric Sr3Zr2O7: Competition between Hybrid Improper Ferroelectric and Antiferroelectric Mechanisms.
S. Yoshida, K. Fujita, H. Akamatsu, O. Hernandez, A. S. Gupta, F. G. Brown, H. Padmanabhan, A. S. Gibbs, T. Kuge, R. Tsuji, S. Murai, J. M. Rondinelli, V. Gopalan, K. Tanaka.
Advanced Functional Materials 2018

Magnetostriction-polarization coupling in multiferroic Mn2MnWO6.
M-R. Li, E. E. McCabe, P. W. Stephens, M. Croft, L. Collins, S. V. Kalinin, Z. Deng, M. Retuerto, A. S. Gupta, H. Padmanabhan, V. Gopalan, C. P. Grams, J. Hemberger, F. Orlandi, P. Manuel, W-M. Li, C-Q. Jin, D. Walker, M. Greenblatt.
Nature Communications 2017

A(II)GeTeO6 (A = Mn, Cd, Pb): Non-Centrosymmetric Layered Tellurates with PbSb2O6-Related Structure.
S. W. Kim, Z. Deng, S. Yu, H. Padmanabhan, W. Zhang, V. Gopalan, C. Jin, M. Greenblatt.
Inorganic Chemistry 2017

Symmetry and Materials Theory

Antisymmetry: Fundamentals and applications.
H. Padmanabhan*, J. M. Munro*, I. Dabo, V. Gopalan.

Annual Review of Materials Research 2020

Discovering minimum energy pathways via distortion symmetry groups.
J. M. Munro, H. Akamatsu, H. Padmanabhan, V. Liu, Y. Shi, L-Q. Chen, B. K. VanLeeuwen, I. Dabo, V. Gopalan.
Physical Review B 2018

Spatio-temporal symmetry–crystallographic point groups with time translations and time inversion.
V. S. Liu, B. K. VanLeeuwen, J. M. Munro, H. Padmanabhan, I. Dabo, V. Gopalan, D. B. Litvin.
Acta Crystallographica Section A: Foundations and Advances 2018

Spatio-Temporal Symmetry – Point Groups with Time Translations.
H. Padmanabhan, M. L. Kingsland, J. M. Munro, D. B. Litvin, V. Gopalan.
Symmetry 2017