Spontaneous electric fields in solid films: spontelectrics☆

  title={Spontaneous electric fields in solid films: spontelectrics☆},
  author={David Field and Oksana Plekan and Andrew Martin Cassidy and Richard Balog and Nykola C. Jones and Jack Dunger},
  journal={International Reviews in Physical Chemistry},
  pages={345 - 392}
When dipolar gases are condensed at sufficiently low temperature onto a solid surface, they form films that may spontaneously exhibit electric fields in excess of 108 V/m. This effect, called the ‘spontelectric effect’, was recently revealed using an instrument designed to measure scattering and capture of low energy electrons by molecular films. In this review it is described how this discovery was made and the properties of materials that display the spontelectric effect, so-called… 

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A review of recent progress in understanding the spontelectric state of matter

Abstract The spontelectric state of matter is exemplified by the presence of static, spontaneous electric fields extending throughout thin films of dipolar solids. The spontelectric state was

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Dipole-Oriented Molecular Solids Can Undergo a Phase Change and Still Maintain Electrical Polarization

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The optical absorption spectra of spontaneously electrical solids: the case of nitrous oxide.

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Crystallites and Electric Fields in Solid Ammonia

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Sign flipping of spontaneous polarization in vapour-deposited films of small polar organic molecules.

The investigated bulk effect for 18 small organic molecules and found that, as a rule, alcohol films have the negative end on the vacuum side at all temperatures, which expands substantially the experimental information regarding spontaneous polarization in vapour-deposited films.

The role of thermal history on spontaneous polarization and phase transitions of amorphous solid water films studied by contact potential difference measurements.

It is demonstrated that temperature-programmed contact potential difference measurements employed by a Kelvin probe under ultrahigh vacuum conditions and their temperature derivative can track films' restructure and crystallization occurring in amorphous solid water (ASW) at temperatures well below the onset of film desorption.

Non-linear and non-local behaviour in spontaneously electrical solids.

RAIRS data confirm that the behaviour of spontelectrics is governed by an expression for the degree of dipole orientation, which is continuous in temperature, but with a discontinuity in the derivative, and that the temperature of deposition associated with this discontinuity matches the temperature above which dipole order switches from the expected reduction with temperature to an increase with temperature.



Spontaneous electric fields in films of cis-methyl formate.

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A new class of spontaneously polarized materials

aterials have been a defining feature of the evolution of human culture and the electrical properties of materials are now at the forefront of this evolution. Advances occur both through the

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Experimental data obtained using low energy electron beams are presented which show that films of N2O, of several hundred monolayers (ML), spontaneously acquire a positive potential of as high as 5

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The discovery of a new form of spontaneously polarized material which can arise through a mechanism of non-linear dipole alignment in a single domain in which dipoles alignment generates the electric field within the film and the field generates dipole aligned.

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Absolute cross section for trapping low-energy electrons (0–18eV) in molecular films of n-hexane

We propose an apparatus and method, based on the absorption of photon of energy ranging between 1.5 and 3.54eV, to measure the absolute cross section for trapping low-energy electrons in a molecular

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This work points the way to multi-Tbit/in(2) memories and provides a glimpse of the structural and electrical manifestations of ferroelectricity down to its ultimate limits.

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