Abstract
The room-temperature d0 ferromagnetism in black phosphorous (BP) oxide is investigated experimentally and theoretically. Electrochemical oxidation does not alter the single-crystal structure of BP and the degree of oxidation depends on the oxidation time, thereby resulting in changeable d0 ferromagnetism caused by surface P-O bonds. First-principles calculation reveals that different surface P-O bonds have different binding energies and contributions to the ferromagnetism and the bridge and dangling oxygen atoms are responsible for the observed ferromagnetism which stems from p orbital spin polarization of the oxygen and phosphorus atoms.
| Original language | English |
|---|---|
| Article number | 91602 |
| Journal | Applied Physics Letters |
| Volume | 108 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 29 Feb 2016 |
Publisher's Copyright Statement
- COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Q. F. Gui, L. L. Sun, L. Z. Liu, X. L. Wu, and Paul K. Chu , "d0 ferromagnetism in black phosphorous oxide caused by surface P-O bonds", Appl. Phys. Lett. 108, 091602 (2016) and may be found at https://doi.org/10.1063/1.4942966.