Jahn-Teller resonance states in the Vb metal hydrides

Title: Jahn-Teller resonance states in the Vb metal hydrides

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Abstract

A hamiltonian with a localized Jahn-Teller electron-phonon interaction plus a band-coupling term belonging to a metal cluster state adjacent to interstitial hydrogen in the Vb metals is presented. It is shown that in a low-frequency approximation, this hamiltonian is analogous to the Anderson Hamiltonian for magnetic impurities in metals. The role of hydrogen in triggering the Jahn-Teller instability is explained in the context of the Hartree-Fock solutions of the low-frequency hamiltonain, using a phase diagram in the Hartree-Fock parameter space. An elastic susceptibility expression is derived and compared with an observed elastic relaxation. The empirical connection of the Jahn-Teller distortion to the observed elastic dipole tensor is reconsidered.

Authors:: Abell, G C

Publication Date:: 1982-01-01

Research Org.:: Mound Facility, Miamisburg, OH (USA)

OSTI Identifier:: 5482626

Report Number(s):: MLM-2904(OP); CONF-820325-3
ON: DE82008462; TRN: 82-011661

DOE Contract Number:: AC04-76DP00053

Resource Type:: Conference

Resource Relation:: Conference: International symposium on the electronic structure and properties of hydrogen in metals, Richmond, VA, USA, 4 Mar 1982

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; NIOBIUM HYDRIDES; ELECTRONIC STRUCTURE; JAHN-TELLER EFFECT; TANTALUM HYDRIDES; VANADIUM HYDRIDES; HARTREE-FOCK METHOD; HYDRIDES; HYDROGEN COMPOUNDS; NIOBIUM COMPOUNDS; TANTALUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS; 360202* - Ceramics, Cermets, & Refractories- Structure & Phase Studies

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                    Abell, G C. Jahn-Teller resonance states in the Vb metal hydrides.  United States: N. p., 1982. 
        Web.

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                    Abell, G C. Jahn-Teller resonance states in the Vb metal hydrides.  United States.

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                    Abell, G C. Fri .  
        "Jahn-Teller resonance states in the Vb metal hydrides".  United States.

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@article{osti_5482626,

  title        = {Jahn-Teller resonance states in the Vb metal hydrides},

  author       = {Abell, G C},

  abstractNote = {A hamiltonian with a localized Jahn-Teller electron-phonon interaction plus a band-coupling term belonging to a metal cluster state adjacent to interstitial hydrogen in the Vb metals is presented. It is shown that in a low-frequency approximation, this hamiltonian is analogous to the Anderson Hamiltonian for magnetic impurities in metals. The role of hydrogen in triggering the Jahn-Teller instability is explained in the context of the Hartree-Fock solutions of the low-frequency hamiltonain, using a phase diagram in the Hartree-Fock parameter space. An elastic susceptibility expression is derived and compared with an observed elastic relaxation. The empirical connection of the Jahn-Teller distortion to the observed elastic dipole tensor is reconsidered.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/5482626},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1982},

  month        = {1}

}

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