Microwave-absorption-induced heating of surface state electrons on liquid 3He

Denis Konstantinov, Hanako Isshiki, Hikota Akimoto, Keiya Shirahama, Yuriy Monarkha, Kimitoshi Kono

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A resonance-induced change is observed in the resistivity of surface state electrons (SSEs) exposed to microwave (MW) radiation. The MW frequency corresponds to the transition energy between the two lowest Rydberg energy levels. All measurements are performed with electrons on liquid 3He in the temperature range 0.45-0.65K in which the electron relaxation time and the MW absorption linewidth are determined by the collisions of the electrons with helium vapor atoms. The resistivity is found to increase in the vicinity of the MW resonance at all values of the input MW power which is varied by two orders of magnitude. This effect is attributed to the heating of SSEs by the resonance MW radiation. The temperature and the momentum relaxation rate of the hot electrons are calculated as a function of the MW power in the cell, and the Rabi frequency is determined from a comparison of the theoretical result with the experiment. In addition, the broadening of the absorption signal caused by the heating is studied experimentally, and the results are found to be in good agreement with our calculations.

Original languageEnglish
Article number034705
JournalJournal of the Physical Society of Japan
Volume77
Issue number3
DOIs
Publication statusPublished - 2008 Mar

Fingerprint

microwave absorption
electron states
microwaves
heating
liquids
microwave resonance
electrical resistivity
electrons
microwave frequencies
hot electrons
relaxation time
energy levels
helium
vapors
momentum
collisions
temperature
cells
atoms
energy

Keywords

  • Electron conductivity
  • Hot electrons
  • Microwave absorption
  • Rydberg states
  • Surface state electrons on liquid helium

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Microwave-absorption-induced heating of surface state electrons on liquid 3He. / Konstantinov, Denis; Isshiki, Hanako; Akimoto, Hikota; Shirahama, Keiya; Monarkha, Yuriy; Kono, Kimitoshi.

In: Journal of the Physical Society of Japan, Vol. 77, No. 3, 034705, 03.2008.

Research output: Contribution to journalArticle

Konstantinov, Denis ; Isshiki, Hanako ; Akimoto, Hikota ; Shirahama, Keiya ; Monarkha, Yuriy ; Kono, Kimitoshi. / Microwave-absorption-induced heating of surface state electrons on liquid 3He. In: Journal of the Physical Society of Japan. 2008 ; Vol. 77, No. 3.
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AU - Konstantinov, Denis

AU - Isshiki, Hanako

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AU - Monarkha, Yuriy

AU - Kono, Kimitoshi

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N2 - A resonance-induced change is observed in the resistivity of surface state electrons (SSEs) exposed to microwave (MW) radiation. The MW frequency corresponds to the transition energy between the two lowest Rydberg energy levels. All measurements are performed with electrons on liquid 3He in the temperature range 0.45-0.65K in which the electron relaxation time and the MW absorption linewidth are determined by the collisions of the electrons with helium vapor atoms. The resistivity is found to increase in the vicinity of the MW resonance at all values of the input MW power which is varied by two orders of magnitude. This effect is attributed to the heating of SSEs by the resonance MW radiation. The temperature and the momentum relaxation rate of the hot electrons are calculated as a function of the MW power in the cell, and the Rabi frequency is determined from a comparison of the theoretical result with the experiment. In addition, the broadening of the absorption signal caused by the heating is studied experimentally, and the results are found to be in good agreement with our calculations.

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