Apparatus and method for measuring electrostatic polarization

Patent · Tue May 23 00:00:00 EDT 1989

OSTI ID:5729709

Hahn, E L; Clark, J; Sloater, T; Hilbert, C; Heabey, M B

This patent describes an apparatus for measuring the electric properties of a solid which is made up of a repeated cell. The cell having an excitable species positioned in a non-centrosymmetric location with respect to the electron distribution resulting from the other atoms in the cell. The apparatus comprises: sample holding means for containing a sample of the solid, the sample holding means comprising a capacitor having a dielectric layer comprising the sample; means for generating a constant magnetic field in the sample; means for inducing oscillations in the electron distribution including means for exciting the excitable species, the inducing means being operative for a first predetermined time period; and means for detecting a voltage signal across the capacitor, the voltage signal having a frequency in a predetermined frequency range, the detecting means being operative in a second predetermined time period following the first predetermined time period, the inducing means being inoperative during the second predetermined time period.

• Assignee: Regents of the Univ. of California, Berkeley, CA (USA)
• Patent Number(s): US 4833392; A
• Application Number: PPN: US 7-076869A
• OSTI ID: 5729709
• Resource Relation: Patent File Date: 23 Jul 1987
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
47 OTHER INSTRUMENTATION
ELECTRIC MEASURING INSTRUMENTS
DESIGN
OPERATION
SOLIDS
ELECTRICAL PROPERTIES
CAPACITORS
ELECTROSTATIC SEPARATION
MAGNETIC FIELDS
ELECTRICAL EQUIPMENT
EQUIPMENT
MEASURING INSTRUMENTS
PHYSICAL PROPERTIES
SEPARATION PROCESSES
360603* - Materials- Properties
440800 - Miscellaneous Instrumentation- (1990-)