Journal ArticleDOI
Impurity conduction in synthetic semiconducting diamond
TLDR
In this article, a series of synthetic p-type semiconducting diamonds in the temperature range 80 to 450K have been studied and the dominant conductivity mechanism at low temperatures is shown to be impurity conduction, and effects have been isolated due both to impurity-band conduction and hopping transport between neutral and ionized acceptor centres.Abstract:
Electrical conductivity and Hall effect measurements have been made on a series of synthetic p-type semiconducting diamonds in the temperature range 80 to 450K. The dominant conductivity mechanism at low temperatures is shown to be impurity conduction, and effects have been isolated due both to impurity-band conduction and to hopping transport between neutral and ionized acceptor centres. The activation energies associated with the latter processes are much lower than the acceptor ionization energy, and the variation with temperature of the onset of impurity conduction as a function of the neutral acceptor concentration accounts for the wide range of activation energies reported for synthetic diamonds by previous authors.read more
Citations
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Journal ArticleDOI
Superconductivity in diamond
Evgeny A. Ekimov,Vladimir A. Sidorov,Eric D. Bauer,N. N. Melnik,Nicholas Curro,Joe D. Thompson,S. M. Stishov +6 more
TL;DR: Electrical resistivity, magnetic susceptibility, specific heat and field-dependent resistance measurements show that boron-doped diamond is a bulk, type-II superconductor below the superconducting transition temperature Tc ≈ 4 K; superconductivity survives in a magnetic field up to Hc2(0) ≥ 3.5 T.
Journal ArticleDOI
Electron spin resonance in the study of diamond
J H N Loubser,J. A. Van Wyk +1 more
TL;DR: The role of electron spin resonance in the study of both natural and synthetic diamond is reviewed in this paper, where a brief survey of the physical significance of the constants in the spin Hamiltonian, as well as experimental technique, is given.
Journal ArticleDOI
Optical absorption and luminescence in diamond
TL;DR: In this paper, a review of the important point defects observed optically in diamond is presented, and the relevance of the experimental results to the current controversy about how to calculate the properties of point defects is brought out.
Journal ArticleDOI
Intermediate-depth earthquake faulting by dehydration embrittlement with negative volume change.
TL;DR: It is shown that dehydration of antigorite serpentinite under stress results in faults delineated by ultrafine-grained solid reaction products formed during dehydration, confirming that dehydration embrittlement is a viable mechanism for nucleating earthquakes independent of depth, as long as there are hydrous minerals breaking down under a differential stress.
Journal ArticleDOI
The nature of the acceptor centre in semiconducting diamond
A T Collins,A W S Williams +1 more
TL;DR: In this article, a precision study has been made of the temperature dependence of the Hall effect and resistivity in five carefully selected natural semiconducting diamonds, and the acceptor concentration in each sample has been calculated from the Hall Effect data.
References
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Journal ArticleDOI
The theory of impurity conduction
Nevill Mott,W. D. Twose +1 more
TL;DR: In this article, the theory of impurity conduction was introduced and the following conclusions were drawn: 1) impurity can be inferred from impurity, and 2) impur-ture conduction can be predicted.
Journal ArticleDOI
Electrical Properties of N -Type Germanium
P. P. Debye,Esther M. Conwell +1 more
TL;DR: In this paper, an analytical formula for obtaining the mobility from lattice and impurity mobilities is included, and the effect of electron-electron collisions on the mobility is considered in a qualitative manner.
Journal ArticleDOI
Intrinsic and Extrinsic Recombination Radiation from Natural and Synthetic Aluminum-Doped Diamond
TL;DR: In this paper, the edge-recombination-radiation spectrum from natural semiconducting diamond has been re-examined and compared with spectra obtained for the first time from aluminum and nominally boron-doped General Electric synthetic diamond.
Journal ArticleDOI
Bound Excitons and Donor-Acceptor Pairs in Natural and Synthetic Diamond
Journal ArticleDOI
Compensation Dependence of Impurity Conduction in Antimony-Doped Germanium
E. A. Davis,W. Dale Compton +1 more
TL;DR: In this paper, the authors studied the compensation dependence of impurity conduction in n-type germanium containing antimony atoms and showed that the impurity dependence is independent of the antimony atom type.