Author: Julia Kazmierczak

“A Mosaic Layered Halide-Perovskite Spin Glass: Mechanochemical Alloying of a Ferromagnet and a Paramagnet” Published in ACS Central Science

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Read the full paper: here Link to the journal: here Pulverizing together a Cr\(^\text{II}\) perovskite, (BA)\(_2\)Cr\(^\text{II}\)Cl\(_4\), and a Cr\(^\text{III}\) double perovskite, (BA)\(_4\)Ag\(^\text{I}\)Cr\(^\text{III}\)Cl\(_8\), at room temperature affords a new layered perovskite alloy incorporating three different metal ions in each layer: (BA)\(_8\)(Ag\(^\text{I}\)Cr\(^\text{III}\))Cr\(^\text{II}\)\(_2\)Cl\(_{16}\) (BA = \(n\)-butylammonium). The magnetic ground state of this alloy is a spin glass (freezing … Continue Reading “A Mosaic Layered Halide-Perovskite Spin Glass: Mechanochemical Alloying of a Ferromagnet and a Paramagnet” Published in ACS Central Science

“Precise determination of the long-time asymptotics of the diffusion spreadability of two-phase media” Published in Physical Review E

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Read the full paper: here Link to the journal: here The time-dependent diffusion spreadability \(\mathcal{S}(t)\) is a powerful dynamical probe of the microstructure of two-phase heterogeneous media across length scales [Torquato, S., \emph{Phys. Rev. E.}, 104 054102 (2021)]. The spreadability can be exactly represented as a certain functional of the spectral density \(\tilde{\chi}_{_V}(\mathbf{k})\), where \(\bf … Continue Reading “Precise determination of the long-time asymptotics of the diffusion spreadability of two-phase media” Published in Physical Review E

“Transparency versus Anderson localization in one-dimensional disordered stealthy hyperuniform layered media” Published in Optical Materials Express

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Read the full paper: here Link to the journal: here Wave transport in one-dimensional (1D) systems, even with an arbitrarily small amount of disorder, is conventionally expected to exhibit localization at all frequencies. A recent strong-contrast expansion for the effective dynamic dielectric constant of disordered stealthy hyperuniform 1D (layered) two-phase dielectric media, exact through third … Continue Reading “Transparency versus Anderson localization in one-dimensional disordered stealthy hyperuniform layered media” Published in Optical Materials Express