Tunnelling Model for Quasi‐One‐Dimensional Hydrogen‐Bonded Crystals | Zendy

Plascak J. A. | Zendy; Salinas S. R. | Zendy

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Tunnelling Model for Quasi‐One‐Dimensional Hydrogen‐Bonded Crystals

Author(s) -

Plascak J. A.,

Salinas S. R.

Publication year - 1982

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221130139

Subject(s) - quantum tunnelling , anisotropy , ising model , ferroelectricity , hamiltonian (control theory) , hydrogen , condensed matter physics , materials science , statistical physics , physics , quantum mechanics , mathematics , mathematical optimization , dielectric

Tunnelling term is included in the Hamiltonian of an anisotropic Ising model which is used to explain the thermodynamic properties of quasi‐one‐dimensional hydrogen‐bonded ferroelectric crystals. A variational approach is used to treat the strong intrachain interactions accurately, while the weak interchain interactions are accounted for in a mean‐field approximation. Also, fittings are presented of some experimental data pertaining to crystals of PbHPO 4 .

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