High-Throughput Computational Search for Half-Metallic Oxides
Abstract
Half metals are a peculiar class of ferromagnets that have a metallic density of states at the Fermi level in one spin channel and simultaneous semiconducting or insulating properties in the opposite one. Even though they are very desirable for spintronics applications, identification of robust half-metallic materials is by no means an easy task. Because their unusual electronic structures emerge from subtleties in the hybridization of the orbitals, there is no simple rule which permits to select a priori suitable candidate materials. Here, we have conducted a high-throughput computational search for half-metallic compounds. The analysis of calculated electronic properties of thousands of materials from the inorganic crystal structure database allowed us to identify potential half metals. Remarkably, we have found over two-hundred strong half-metallic oxides; several of them have never been reported before. Considering the fact that oxides represent an important class of prospective spintronics materials, we have discussed them in further detail. In particular, they have been classified in different families based on the number of elements, structural formula, and distribution of density of states in the spin channels. We are convinced that such a framework can help to design rules for the exploration of a vaster chemical space and enable the discovery of novel half-metallic oxides with properties on demand.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 25, 2020
- Source ID
- 10.3390/molecules25092010
Entities
People
- Jagoda Slawinska
- Laalitha Liyanage
- Marco Buongiorno Nardelli
- Marco Fornari
- Priya Gopal
- Stefano Curtarolo
Organizations
- Office of Naval Research