Presentation Title

Potential for ferroelectric and pieoelectric properties in Melamine

Faculty Mentor

Sara Callori

Start Date

23-11-2019 8:45 AM

End Date

23-11-2019 9:30 AM

Location

214

Session

poster 2

Type of Presentation

Poster

Subject Area

physical_mathematical_sciences

Abstract

We tested the crystalline material Melamine (melamine hydrochloride hemi-hydrate) for ferroelectric and piezo electric properties. Melamine has a displacement along the b-axis creating a non-centrosymmetric position of the unit cell resulting in a magnetic dipole moment. This suggests ferroelectricity and ferroelectricity alone implies piezoelectricity in a material. We tested Melamine using the Multiferroic High Voltage Radiant system ranging from 1kV/cm^2-14kV/cm^2. For ferroelectricity we looked for a spontaneous polarization in the positive and negative direction in the shape of a “hysteresis loop”. For piezoelectricity we looked for a nonlinear “butterfly curve” response for displacement vs. electric field. Our results show instances of both piezoelectric and ferroelectric responses in melamine. Organic molecules are rarely piezoelectric, but the potential presence of ferroelectricity could prove piezoelectric properties to exist in melamine. Therefore, it may be used as capacitors, piezo-actuators, and data memory storages. Its’ production is inexpensive and does not require extreme temperature or pressure and typically grows in long thin fractured crystals

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Nov 23rd, 8:45 AM Nov 23rd, 9:30 AM

Potential for ferroelectric and pieoelectric properties in Melamine

214

We tested the crystalline material Melamine (melamine hydrochloride hemi-hydrate) for ferroelectric and piezo electric properties. Melamine has a displacement along the b-axis creating a non-centrosymmetric position of the unit cell resulting in a magnetic dipole moment. This suggests ferroelectricity and ferroelectricity alone implies piezoelectricity in a material. We tested Melamine using the Multiferroic High Voltage Radiant system ranging from 1kV/cm^2-14kV/cm^2. For ferroelectricity we looked for a spontaneous polarization in the positive and negative direction in the shape of a “hysteresis loop”. For piezoelectricity we looked for a nonlinear “butterfly curve” response for displacement vs. electric field. Our results show instances of both piezoelectric and ferroelectric responses in melamine. Organic molecules are rarely piezoelectric, but the potential presence of ferroelectricity could prove piezoelectric properties to exist in melamine. Therefore, it may be used as capacitors, piezo-actuators, and data memory storages. Its’ production is inexpensive and does not require extreme temperature or pressure and typically grows in long thin fractured crystals