Question

Compare dielectric constant between h2o and d2o

Answer 1

Explanation:

Abstract

We measured the real and imaginary dielectric constants, epsilon' and epsilon'', of H2O and D2O ice over the frequency range of 0.2–1.4 THz and temperature range of 20–240 K using terahertz-time domain spectroscopy and a gas-cooled cryostat. The constant epsilon' increased with frequency; numerical calculations indicated a local maximum in epsilon' at a few terahertz. The polarizability α obtained from epsilon' exhibited a linear increase with respect to the temperature squared (T2). The constant epsilon'', which is mainly influenced by infrared phonon absorption, increased with the frequency and temperature over the entire range considered in this study. A mathematical model was created to describe the frequency and temperature dependence of epsilon''.

Answer 2

Answer:

Abstract

We measured the real and imaginary dielectric constants, epsilon' and epsilon'', of H2O and D2O ice over the frequency range of 0.2–1.4 THz and temperature range of 20–240 K using terahertz-time domain spectroscopy and a gas-cooled cryostat. The constant epsilon' increased with frequency; numerical calculations indicated a local maximum in epsilon' at a few terahertz. The polarizability α obtained from epsilon' exhibited a linear increase with respect to the temperature squared (T2). The constant epsilon'', which is mainly influenced by infrared phonon absorption, increased with the frequency and temperature over the entire range considered in this study. A mathematical model was created to describe the frequency and temperature dependence of epsilon''.

Explanation:

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