Dynamics of the Formation of an Electron Bubble in Liquid Helium

Rosenblit, Michael; Jortner, Joshua

doi:10.1103/physrevlett.75.4079

Cited by 128 publications

(71 citation statements)

References 38 publications

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“…This has been discussed by Rosenblitt and Jortner. 71) They consider an initial bubble of radius $3 Å and find that the time expand for the bubble to reach full size is 3.9 ps. As the bubble grows, sound waves are radiated away into the surrounding liquid.…”

Section: Dynamics Of the Electron Bubblementioning

confidence: 99%

“…Calculations give a time of 20 ps for this to happen. 71) These calculations of Rosenblitt and Jortner treat the helium as a classical fluid without dissipation and the bubble is taken to have a sharp surface. It would be interesting to extend these calculations by using density functional methods and a first step in this direction has been taken by Eloranta and Apkarian.…”

Section: Dynamics Of the Electron Bubblementioning

confidence: 99%

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Electrons in Liquid Helium

Maris

2008

J. Phys. Soc. Jpn.

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An electron injected into liquid helium forces open a small cavity that is free of helium atoms. This object is referred to as an electron bubble, and has been studied experimentally and theoretically for many years. At first sight, it would appear that because helium atoms have such a simple electronic structure and are so chemically inert, it should be very easy to understand the properties of these electron bubbles. However, it turns out that while for some properties theory and experiment are in excellent quantitative agreement, there are other experiments for which there is currently no understanding at all.

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Section: Dynamics Of the Electron Bubblementioning

confidence: 99%

Section: Dynamics Of the Electron Bubblementioning

confidence: 99%

Electrons in Liquid Helium

Maris

2008

J. Phys. Soc. Jpn.

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“…After electronic excitation, Rydberg-type He atoms or excimer molecules are formed in liquid helium and a repulsive force between the Rydberg electron orbital and the surrounding ground state helium atoms is established. As a consequence the surrounding helium atoms are pushed away within a short time [12][13] creating a void around the excited atoms He * and molecules He 2 * . This void is often referred to as a bubble and it has typical radii between 10-14 Å depending on the electron's orbital radius [14].…”

Section: Introductionmentioning

confidence: 99%

Luminescence from Liquid Helium Excited by Corona Discharges

Bonifaci

Aitken

et al. 2009

IEEE Trans. Dielect. Electr. Insul.

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Liquid helium (LHe) at 4.2 K was electronically excited using a corona discharge for both negative and positive high voltages. The experiments were carried out for different pressures in the range from 0.1 to 10 MPa at constant temperature. The light emitted from the zone close to the tip was spectroscopically analyzed showing features from atoms and excimer helium. The shifts and widths of the observed lines and bands were found to depend on the applied hydrostatic pressure and on the tip polarity. Our analysis showed that classic pressure broadening theory cannot account for the observed widths and shifts rather than the presence of bubbles which surround single excited atoms and molecules. For positive tip polarities red shifted features distinct from pure He and He 2 * were observed and tentatively assigned to "red satellites".

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“…The development of pseudopotential models for excess electron localization in liquid helium accounted for fascinating features of the electron bubble, i.e., structure (bubble radius of approximately 17Å), large compressibility, mobility, the existence of a critical helium density for electron localization, optical spectroscopy, and photoemission (60). These were followed by the theory of the dynamics of the electron bubble formation on the time scale of nuclear motion (61). This work established the basis for recent studies of electron localization in low-energy, halo-type, surface states on He clusters (65) and in interior electron localization in bubbles within helium clusters (65).…”

Section: Building a New University In Tel-avivmentioning

confidence: 87%

REFLECTIONS ON PHYSICAL CHEMISTRY: Science and Scientists

Jortner

2006

Annu. Rev. Phys. Chem.

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Key Words physical chemistry in Israel, radiationless transitions, chemical and biological electron transfer, dynamics of finite systems, structure-dynamics-function relations ■ Abstract This is the story of a young person who grew up in Tel-Aviv during the period of the establishment of the State of Israel and was inspired to become a physical chemist by the cultural environment, by the excellent high-school education, and by having been trained by some outstanding scientists at the Hebrew University of Jerusalem and, subsequently, by the intellectual environment and high-quality scientific endeavor at the University of Chicago. Since serving as the first chairman of the Chemistry Department of the newly formed Tel-Aviv University he has been immersed in research, in the training of young scientists, and in intensive and extensive international scientific collaboration. Together with the members of his "scientific family" he has explored the phenomena of energy acquisition, storage and disposal and structure-dynamics-function relations in large molecules, condensed phase, clusters and biomolecules, and is looking forward to many future adventures in physical chemistry. "What to leave out and what to put in? That

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Dynamics of the Formation of an Electron Bubble in Liquid Helium

Cited by 128 publications

References 38 publications

Electrons in Liquid Helium

Electrons in Liquid Helium

Luminescence from Liquid Helium Excited by Corona Discharges

REFLECTIONS ON PHYSICAL CHEMISTRY: Science and Scientists

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