On the energy band structure and the phase transitions in a cuprous chloride crystal

Rusakov, A. P.

doi:10.1002/pssb.2220720206

Cited by 39 publications

(2 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8 S» Etemad, M. Ozaki, D. L. Peebles, A. J. Heeger, and A. G. MacDiarmid, to be published. 9 Y, Tomkiewicz, T. D. Schultz, H. B. Broom, T. C. Clarke, and G. B. Street, Phys.…”

mentioning

confidence: 99%

“…Zinc-blende-structured CuCl was assumed to have a direct gap of 3.4 eV at the center r of the Brillouin zone 11 until Rusakov suggested the existence of a lower conduction-band minimum at the X point separated by only ~ 0.3 eV from the top of the valence band at r. 9 Shortly after, optical absorption data were interpreted in support of the narrow-indirect-gap model, 12 and Abrikosov presented a detailed application to CuCl of the intrinsic "excitonic" superconductivity theory. 8 Subsequently, the band structure was recalculated by use of a variety of different techniques, and despite many controversial details, the majority of the results agreed on a direct band gap at r. 13 " 17 An extensive discussion on high-temperature superconductivity in CuCl is given by Wilson.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Definite Experimental Evidence against Intrinsic Electron-Hole Superconductivity in Pure CuCl

Batlogg¹,

Remeika²

1980

Phys. Rev. Lett.

View full text Add to dashboard Cite

“…8 S» Etemad, M. Ozaki, D. L. Peebles, A. J. Heeger, and A. G. MacDiarmid, to be published. 9 Y, Tomkiewicz, T. D. Schultz, H. B. Broom, T. C. Clarke, and G. B. Street, Phys.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

Definite Experimental Evidence against Intrinsic Electron-Hole Superconductivity in Pure CuCl

Batlogg¹,

Remeika²

1980

Phys. Rev. Lett.

View full text Add to dashboard Cite

High Pressure Compressibility of Cuprous Chloride Crystals

Rusakov

Laukhin

Lisovskii

1975

Physica Status Solidi (b)

View full text Add to dashboard Cite

b) 71, K191 (1975) Subject classification: 1.2; 22.5 Moscow Institute of Steel and Alloys (a) and Institute of Chemical Physics,Academy of Sciences of the USSR (b), Moscow High Pressure Compressibility of Cuprous Chloride Crystals BY A. P. RUSAKOV (a), V . N . LAUKHIN (b), and YU.A. LISOVSKII (a) In honour of Prof. Dr. Dr. h.c. P. GORLICH's 70th birthday Recently X-ray diffraction and electroresistivity measurements of the ionic dielectric CuCl were taken a t high pressures P up to 130 kbar (1, 2). At room temperature and a t P b 42 kbar the tetrahedral dielectric phase I1 transformed to the phase with metallic conductivity (phase IIa) without a change in crystal structure.At P > 55 kbar CuCl transformed to the tetragonal phase with a volume discontinuity of AV/V = 10.5% and then at P > 100 kbar it changed to an insulating NaC1-type structure.

show abstract

Band Structure and Optical Properties of Tetrahedrally Coordinated Cu‐ and Ag‐Halides

Goldmann

1977

Physica Status Solidi (b)

203

View full text Add to dashboard Cite

With the exception of the edge excitions, which have been investigated since more than 40 years [5], there has been for about three decades only very limited experimental information about the valence states of the Cu-and Ag-halides. It was only very recently that photoemission experiments [6 to 121 allowed to get definite conclusions about the position of the d-levels, and to derive approximate partial p and d densities of states curves in the valence band region IS].At this state of knowledge it seems to be useful to review in the present paper all experimental and theoretical investigations of the valence and conduction band states in CuC1, CuBr, CuI, and AgI and to check the many single information on their consistency within one unifying interpretation. I n many cases details, concerning mainly the energtic position of structures, have been determined from the published spectra for this purpose. We show that for the first time a semiempirical band structure model can be given, which interprets all available data within the limits of their experimental or methodical errors.After a short discussion of the crystallization properties of the compounds studied (Section 1.2), the relevant symmetry properties and model band structures are presented in Section 2.1. Section 2.2 gives a survey of the available numerical band structure calculations. The experimental investigations of the edge excitonic states and their theoretical interpretation are discussed in Section 2.3. The more deeper lying valence and the more higher lying conduction band states are treated in Section 2.4. The semiempirical band model, obtained from combination of photoelectron data with results of X-ray emission, X-ray absorption, and ultraviolet absorption experiments is presented in Section 2.5.Not included systematically in the present article are investigations of more complex properties as, e.g. nonlinear optical susceptibilities, piezooptical and electrooptical coefficients, biexciton production and annihilation [ 131, and Raman scattering. Papers from these fields have been considered only in very few cases where they yielded additional information on the band structures discussed here. Crystal structures and phase transitionsThe elements of group IV, bound purely covalent, crystallize in the diamond structure (space group 0;). The binary 111-V and 11-VI compounds, which mostly have the zincblende lattice (Ti) or the wurtzite lattice (C&) under normal conditions, exhibit increasing values of the Phillips ionicity ft [la] with increasing distance within the periodic table and the I-VII compounds are found a t the strongly ionic end of the series of tetrahedrally coordinated crystals. Values of f i for the Cu-and Ag-halides are as follows: CuI (ft = 0.692), CuBr (0.735), CuCl (0.746), CuF (0.766), AgI (0.770), AgBr (0.850), AgCl (0.856), and AgF (0.894). Thus, whereas the Cu-halides and AgI still form the zincblende or the wurtzite lattice, in AgBr, AgC1, and AgF the ionicity is already so large that the rocksalt structure (0:) is favoured ...

show abstract

On the energy band structure and the phase transitions in a cuprous chloride crystal

Cited by 39 publications

References 28 publications

Definite Experimental Evidence against Intrinsic Electron-Hole Superconductivity in Pure CuCl

Definite Experimental Evidence against Intrinsic Electron-Hole Superconductivity in Pure CuCl

High Pressure Compressibility of Cuprous Chloride Crystals

Band Structure and Optical Properties of Tetrahedrally Coordinated Cu‐ and Ag‐Halides

Contact Info

Product

Resources

About