Spontelectrics

When laid down as thin films tens to hundreds of molecular layers thick, a range of materials spontaneously generate large electric fields. These fields can be greater than 108 V/m.

These films have rather special properties.They represent a new form of the solid state called spontelectric.[1] Spontelectric behaviour is intrinsic to the dipolar nature of the constituent molecules.

The detection of spontaneous electric fields in numerous solid films prepared by vapour deposition raises fundamental questions about the nature of disordered materials.[2][3][4][5][6]

David Field played a major role in the discovery of spontelectrics.

External links

References

  1. Field, David; O. Plekan; A. Cassidy; R. Balog; N.C. Jones; J. Dunger (12 Mar 2013). "Spontaneous electric fields in solid films: spontelectrics". Int.Rev.Phys.Chem. doi:10.1080/0144235X.2013.767109.
  2. Plekan, Oksana; Andrew Cassidy; Richard Balog; Nykola C. Jones; David Field (2012). "Spontaneous electric fields in films of cis-methyl formate". Phys. Chem. Chem. Phys. 14 (28): 9972–9976. Bibcode:2012PCCP...14.9972P. doi:10.1039/C2CP41229B. PMID 22714668.
  3. Balog, R; Cicman P; Jones NC; Field D (Feb 2009). "Spontaneous dipole alignment in films of N2O". Phys. Rev. Lett. 102 (7). Bibcode:2009PhRvL.102g3003B. doi:10.1103/PhysRevLett.102.073003.
  4. Plekan, Oksana; A. Cassidy; R. Balog; N.C. Jones; D. Field (2011). "A new form of spontaneously polarized material". Phys. Chem. Chem. Phys 13: 21035–21044. Bibcode:2011PCCP...1321035P. doi:10.1039/C1CP22310K.
  5. Field, David; Oksana Plekan; Andrew Cassidy; Richard Balog; Nykola Jones (2011). "A new class of spontaneously polarized materials" (PDF). Europhysics News 42 (6): 32–35. Bibcode:2011ENews..42...32F. doi:10.1051/epn/2011605.
  6. Cassidy, Andrew; O. Plekan; R. Balog; N.C. Jones; D. Field (2013). "Spontaneous electric fields in films of CF3Cl, CF2Cl2 and CFCl3". Phys. Chem. Chem. Phys. 15: 108–113. Bibcode:2013PCCP...15..108C. doi:10.1039/C2CP43138F.
This article is issued from Wikipedia - version of the Saturday, July 18, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.