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Infrared nano-spectroscopy of ferroelastic domain walls in hybrid improper ferroelectric Ca$_3$Ti$_2$O$_7$

Autor: Smith, K. A., Nowadnick, E. A., Fan, S., Khatib, O., Lim, S. J., Gao, B., Harms, N. C., Neal, S. N., Kirkland, J. K., Martin, M. C., Won, C. J., Raschke, M. B., Cheong, S. -W., Fennie, C. J., Carr, G. L., Bechtel, H. A., Musfeldt, J. L.

Publikováno v: Nature Communications 10, 5235 (2019)

Ferroic materials are well known to exhibit heterogeneity in the form of domain walls. Understanding the properties of these boundaries is crucial for controlling functionality with external stimuli and for realizing their potential for ultra-low pow

Externí odkaz: http://arxiv.org/abs/1911.11180

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Anisotropic Infrared Response of Vanadium Dioxide Microcrystals

Autor: Huffman, T. J., Xu, Peng, Qazilbash, M. M., Walter, E. J., Krakauer, H., Wei, Jiang, Cobden, D. H., Bechtel, H. A., Martin, M. C., Carr, G. L., Basov, D. N.

Publikováno v: Phys. Rev. B 87, 115121 (2013)

Vanadium dioxide (VO2) undergoes a phase transition at a temperature of 340 K between an insulating monoclinic M1 phase and a conducting rutile phase. Accurate measurements of possible anisotropy of the electronic properties and phonon features of VO

Externí odkaz: http://arxiv.org/abs/1307.6022

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