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1. Vibrational Coupling Infrared Nanocrystallography

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   Puro, Richard L; Gray, Thomas P; Kapfunde, Tsitsi A; Richter-Addo, George B; Raschke, Markus B (February 2024, Nano Letters)
2. Hydration-Shell Vibrational Spectroscopy

   https://doi.org/10.1021/jacs.9b02742  

   Ben-Amotz, Dor (June 2019, Journal of the American Chemical Society)
3. Vibrational spectroscopy of flavoproteins

   https://doi.org/10.1016/bs.mie.2019.03.011  

   Iuliano, James N.; French, Jarrod B.; Tonge, Peter J. (April 2019, Methods in enzymology)

   Palfey, Bruce A. (Ed.)

   The flavin cofactor performs many functions in the cell based on the ability of the isoalloxazine ring to undergo one- or two-electron reduction and form covalent adducts with reactants such as amino acids. In addition, the strong visible absorption of the cofactor is also the basis for flavin-dependent photoreceptors. Vibrational spectroscopy is uniquely suited to studying the mechanism of flavoproteins since the frequency of the vibrational modes is very sensitive to the electronic structure and environment of the isoalloxazine ring. This chapter describes the mechanistic information that can be gained using vibrational spectroscopy as well experimental challenges and approaches that are used to obtain and interpret the complex data contained in a vibrational spectrum. 

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4. The Local Vibrational Mode Theory and Its Place in the Vibrational Spectroscopy Arena

   https://doi.org/10.1021/acs.jpca.2c05962  

   Kraka, Elfi; Quintano, Mateus; La Force, Hunter W.; Antonio, Juliana J.; Freindorf, Marek (December 2022, The Journal of Physical Chemistry A)
5. Vibrational fingerprints of ferroelectric HfO2

   https://doi.org/10.1038/s41535-022-00436-8  

   Fan, Shiyu; Singh, Sobhit; Xu, Xianghan; Park, Kiman; Qi, Yubo; Cheong, S. W.; Vanderbilt, David; Rabe, Karin M.; Musfeldt, J. L. (December 2022, npj Quantum Materials)

   Abstract Hafnia (HfO 2 ) is a promising material for emerging chip applications due to its high- κ dielectric behavior, suitability for negative capacitance heterostructures, scalable ferroelectricity, and silicon compatibility. The lattice dynamics along with phononic properties such as thermal conductivity, contraction, and heat capacity are under-explored, primarily due to the absence of high quality single crystals. Herein, we report the vibrational properties of a series of HfO 2 crystals stabilized with yttrium (chemical formula HfO 2 :  x Y, where x  = 20, 12, 11, 8, and 0%) and compare our findings with a symmetry analysis and lattice dynamics calculations. We untangle the effects of Y by testing our calculations against the measured Raman and infrared spectra of the cubic, antipolar orthorhombic, and monoclinic phases and then proceed to reveal the signature modes of polar orthorhombic hafnia. This work provides a spectroscopic fingerprint for several different phases of HfO 2 and paves the way for an analysis of mode contributions to high- κ dielectric and ferroelectric properties for chip technologies. 

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