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Pis'ma v Zh. Èksper. Teoret. Fiz., 2017, Volume 105, Issue 3, Pages 182–186 (Mi jetpl5186)  

CONDENSED MATTER

Electrophysical properties of water and ice under isentropic compression to megabar pressures

S. I. Belova, G. V. Boriskova, A. I. Bykova, M. I. Dolotenkoa, N. I. Egorova, A. S. Korshunova, Yu. B. Kudasovabc, I. V. Makarova, V. D. Selemirabc, A. V. Filippova

a Russian Federal Nuclear Center VNIIEF, Sarov, Russia
b Sarov Physical Technical Institute, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Sarov, Russia
c National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow, Russia

Abstract: The relative permittivity and specific conductivity of water and ice are measured under isentropic compression to pressures above $300$ GPa. Compression is initiated by a pulse of an ultrahigh magnetic field generated by an MK-1 magnetocumulative generator. The sample is placed in a coaxial compression chamber with an initial volume of about $40$ cm$^3$. The complex relative permittivity was measured by a fast-response reflectometer at a frequency of about $50$ MHz. At the compression of water, its relative permittivity increases to $\varepsilon=350$ at a pressure of $8$ GPa, then drops sharply to $\varepsilon=140$, and further decreases smoothly. It is shown that measurements of the relative permittivity under isentropic compression make it possible to determine interfaces between ordered and disordered phases of water and ice, as well as to reveal features associated with a change in the activation energy of defects.

DOI: https://doi.org/10.7868/S0370274X17030109

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English version:
Journal of Experimental and Theoretical Physics Letters, 2017, 105:3, 195–199

Bibliographic databases:

Received: 01.12.2016
Revised: 19.12.2016

Citation: S. I. Belov, G. V. Boriskov, A. I. Bykov, M. I. Dolotenko, N. I. Egorov, A. S. Korshunov, Yu. B. Kudasov, I. V. Makarov, V. D. Selemir, A. V. Filippov, “Electrophysical properties of water and ice under isentropic compression to megabar pressures”, Pis'ma v Zh. Èksper. Teoret. Fiz., 105:3 (2017), 182–186; JETP Letters, 105:3 (2017), 195–199

Citation in format AMSBIB
\Bibitem{BelBorByk17}
\by S.~I.~Belov, G.~V.~Boriskov, A.~I.~Bykov, M.~I.~Dolotenko, N.~I.~Egorov, A.~S.~Korshunov, Yu.~B.~Kudasov, I.~V.~Makarov, V.~D.~Selemir, A.~V.~Filippov
\paper Electrophysical properties of water and ice under isentropic compression to megabar pressures
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2017
\vol 105
\issue 3
\pages 182--186
\mathnet{http://mi.mathnet.ru/jetpl5186}
\crossref{https://doi.org/10.7868/S0370274X17030109}
\elib{http://elibrary.ru/item.asp?id=28367904}
\transl
\jour JETP Letters
\yr 2017
\vol 105
\issue 3
\pages 195--199
\crossref{https://doi.org/10.1134/S0021364017030043}
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\scopus{http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85017697207}


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