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Abstract: Ab initio calculations of the spontaneous polarization and piezoelectric properties of boron nitride nanotubes show that they are excellent piezoelectric systems with response values larger than those of piezoelectric polymers. The intrinsic chiral symmetry of the nanotubes induces an exact cancellation of the total spontaneous polarization in ideal, isolated nanotubes of arbitrary indices. Breaking of this symmetry by intertube interaction or elastic deformations induces spontaneous polarization comparable to those of wurtzite semiconductors.
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Nakhmanson, Serge M.; Calzolari, Arrigo; Meunier, Vincent; Bernholc, Jerry & Buongiorno Nardelli, Marco.Spontaneous polarization and piezoelectricity in boron nitride nanotubes,
article,
June 10, 2003;
[College Park, Maryland].
(https://digital.library.unt.edu/ark:/67531/metadc234936/:
accessed April 23, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT College of Arts and Sciences.
