Bachhuber, F. and Rothballer, J. and Soehnel, T. and Weihrich, R. (2013) Phase stabilities at a glance: Stability diagrams of nickel dipnictides. JOURNAL OF CHEMICAL PHYSICS, 139 (21): 214705. ISSN 0021-9606, 1089-7690
Full text not available from this repository. (Request a copy)Abstract
In the course of the recent advances in chemical structure prediction, a straightforward type of diagram to evaluate phase stabilities is presented based on an expedient example. Crystal structures and energetic stabilities of dipnictides NiPn(2) (Pn = N, P, As, Sb, Bi) are systematically investigated by first principles calculations within the framework of density functional theory using the generalized gradient approximation to treat exchange and correlation. These dipnictides show remarkable polymorphism that is not yet understood systematically and offers room for the discovery of new phases. Relationships between the concerned structures including the marcasite, the pyrite, the arsenopyrite/CoSb2, and the NiAs2 types are highlighted by means of common structural fragments. Electronic stabilities of experimentally known and related AB(2) structure types are presented graphically in so-called stability diagrams. Additionally, competing binary phases are taken into consideration in the diagrams to evaluate the stabilities of the title compounds with respect to decomposition. The main purpose of the stability diagrams is the introduction of an image that enables the estimation of phase stabilities at a single glance. Beyond that, some of the energetically favored structure types can be identified as potential new phases. (C) 2013 AIP Publishing LLC.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TOTAL-ENERGY CALCULATIONS; AUGMENTED-WAVE METHOD; NI-P SYSTEM; CRYSTAL-STRUCTURE; BINARY PNICTIDES; BASIS-SET; MARCASITE; PYRITE; ARSENOPYRITE; PERNITRIDE; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie Chemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Dr. Richard Weihrich |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Mar 2020 06:33 |
| Last Modified: | 23 Mar 2020 06:33 |
| URI: | https://pred.uni-regensburg.de/id/eprint/15533 |
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