Effect of internal pressure on incipient ferroelectricity of nanoconfined water molecules observed in hydrothermally grown beryl crystals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00570820" target="_blank" >RIV/68378271:_____/23:00570820 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1002/pssb.202200405" target="_blank" >https://doi.org/10.1002/pssb.202200405</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pssb.202200405" target="_blank" >10.1002/pssb.202200405</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of internal pressure on incipient ferroelectricity of nanoconfined water molecules observed in hydrothermally grown beryl crystals

Popis výsledku v původním jazyce

Quasistatic dielectric permittivity of D2O type I molecules within hydrothermally grown beryl crystals characterized by different internal pressure and content of D2O type II molecules is measured at temperatures 4–300 K. All crystals are found to display quantum paraelectric behavior of the D2O-I molecular subsystem permittivity, that is, permittivity growth while cooling from room temperature followed by saturation below 15–40 K. Processing the data with the Barrett expression shows that excess internal pressure and excess content of D2O-II molecules lead to an increase in quantum temperature T1 and a decrease in the Curie constant C, with the Curie temperature TC remaining unchanged. The discovered strengthening of quantum effects (growth of T1) within an ensemble of dipole–dipole-coupled D2O-I mol ecules is associated with an enhanced azimuthal tunneling of these molecules within the hexagonal localizing potential.

Název v anglickém jazyce

Effect of internal pressure on incipient ferroelectricity of nanoconfined water molecules observed in hydrothermally grown beryl crystals

Popis výsledku anglicky

Quasistatic dielectric permittivity of D2O type I molecules within hydrothermally grown beryl crystals characterized by different internal pressure and content of D2O type II molecules is measured at temperatures 4–300 K. All crystals are found to display quantum paraelectric behavior of the D2O-I molecular subsystem permittivity, that is, permittivity growth while cooling from room temperature followed by saturation below 15–40 K. Processing the data with the Barrett expression shows that excess internal pressure and excess content of D2O-II molecules lead to an increase in quantum temperature T1 and a decrease in the Curie constant C, with the Curie temperature TC remaining unchanged. The discovered strengthening of quantum effects (growth of T1) within an ensemble of dipole–dipole-coupled D2O-I mol ecules is associated with an enhanced azimuthal tunneling of these molecules within the hexagonal localizing potential.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physica Status Solidi B

ISSN

0370-1972

e-ISSN

1521-3951

Svazek periodika

260

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

2200405

Kód UT WoS článku

000899270900001

EID výsledku v databázi Scopus

2-s2.0-85144197745