Broad-band Spectroscopy of Nanoconfined Water Molecules

BELYANCHIKOV, M. A.; SAVINOV, M.; BEDRAN, Z. V.; BEDNYAKOV, P.; PROSCHEK, P.; PROKLESKA, J.; TORGASHEV, V. I.; ZHUKOVA, E. S.; ZHUKOV, S. S.; KADYROV, L. S.; THOMAS, V.; DUDKA, A.; ZHUGAYEVYCH, A.; ANZIN, V. B.; KREMER, R. K.; FISCHER, J. K. H.; LUNKENHEIMER, P.; LOIDL, A.; UYKUR, E.; DRESSEL, M.; GORSHUNOV, B.

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Broad-band Spectroscopy of Nanoconfined Water Molecules

BELYANCHIKOV, M. A.; SAVINOV, M.; BEDRAN, Z. V.; BEDNYAKOV, P.; PROSCHEK, P.; PROKLESKA, J.; TORGASHEV, V. I.; ZHUKOVA, E. S.; ZHUKOV, S. S.; KADYROV, L. S.; THOMAS, V.; DUDKA, A.; ZHUGAYEVYCH, A.; ANZIN, V. B.; KREMER, R. K.; FISCHER, J. K. H.; LUNKENHEIMER, P.; LOIDL, A.; UYKUR, E.; DRESSEL, M.; GORSHUNOV, B.

URI: http://repository.utm.md/handle/5014/8397
https://doi.org/10.1007/978-3-030-31866-6_2

Date: 2019

Abstract:

We have performed broad-band spectroscopic investigations of vibrational and relaxational excitations of water molecules confined to nanocages within artificial beryl and mineral cordierite crystals. Signatures of quantum critical phenomena within the H2O molecular network are registered in beryl. In cordierite, a density functional analysis is applied to reconstruct the potential energy landscape experienced by H2O molecules, revealing a pronounced anisotropy with a potential well of about 10 meV for the molecular dipole moment aligned along the b-axis.