Improper Ferroelectricity at the Monolayer Limit

Kavli Affiliate: Darrell G. Schlom | First 5 Authors: Yilin Evan Li, Harikrishnan KP, Haidong Lu, Rachel A. Steinhardt, Megan E. Holtz | Summary: Ultrathin ferroelectric films with out-of-plane polarization and high Curie temperatures are key to miniaturizing electronic devices. Most ferroelectrics employed in devices are proper ferroelectrics, where spontaneous polarization is the primary order […]


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The second-order intrinsic Wiedemann-Franz law

Kavli Affiliate: Gang Su | First 5 Authors: Ying-Fei Zhang, Zhi-Fan Zhang, Zhen-Gang Zhu, Gang Su, | Summary: In recent years, the nonlinear anomalous thermal Hall effect has attracted substantial attention. In this paper, we carry out a theoretical exploration of the intrinsic anomalous thermal Hall and Nernst effect that is induced by the thermal […]


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Gyromagnetic Angular Momentum Interconversion in Neutron Stars

Kavli Affiliate: Mamoru Matsuo | First 5 Authors: Hiroshi Funaki, Yuta Sekino, Hiroyuki Tajima, Shota Kisaka, Nobutoshi Yasutake | Summary: We propose a novel mechanism for angular momentum (AM) exchange between the crust and core of a neutron star (NS) via the gyromagnetic effect. Using extended hydrodynamics, we model the star by incorporating macroscopic AM […]


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$K$-theoretic pullbacks for Lagrangians on derived critical loci

Kavli Affiliate: Yukinobu Toda | First 5 Authors: Yalong Cao, Yukinobu Toda, Gufang Zhao, , | Summary: Given a regular function $phi$ on a smooth stack, and a $(-1)$-shifted Lagrangian $M$ on the derived critical locus of $phi$, under fairly general hypotheses, we construct a pullback map from the Grothendieck group of coherent matrix factorizations […]


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