Backbond

Definitions

  • Webster's Revised Unabridged Dictionary
    • n Backbond băk"bŏnd` (Scots Law) An instrument which, in conjunction with another making an absolute disposition, constitutes a trust.
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Century Dictionary and Cyclopedia
    • n backbond In Scots law, a deed attaching a qualification or condition to the terms of a conveyance or other instrument.
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Chambers's Twentieth Century Dictionary
    • Backbond (Scots law) a deed attaching a qualification or condition to the terms of a conveyance or other instrument—used when particular circumstances render it necessary to express in a separate form the limitations or qualifications of a right
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Etymology

Webster's Revised Unabridged Dictionary
Back, adv. + bond,
Chambers's Twentieth Century Dictionary
A.S. bæc, Sw. bak, Dan. bag.

Usage


In science:

In these local environments, an adsorbing As2 molecule can attach to the surface by building up three or four As–Ga backbonds.
Model for nucleation in GaAs homoepitaxy derived from first principles
The As2 forms one backbond to this Ga atom, while simulataneously backbonds with two other dangling orbitals of Ga atoms at the sidewall of the trench are established.
Model for nucleation in GaAs homoepitaxy derived from first principles
When two Ga atoms are on adjacent sites in the trench, like in the local α structure (cluster B3B1 , see also Fig. 4b), the adsorbing As2 can establish four backbonds and will transform this structure to the β reconstruction, that contains three parallel As dimers (see Fig. 4c).
Model for nucleation in GaAs homoepitaxy derived from first principles
Similar to adsorption in the trench, we find that an As2 molecule with only three backbonds is rather weakly bond, by 1.7 eV, and thus can only play the role of an intermediary species in growth.
Model for nucleation in GaAs homoepitaxy derived from first principles
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