Unusual magnetism from lead adsorption on the surface of brookite titanium dioxide thin film
Source abstract
Abstract
The adsorption of Lead (Pb) on brookite titanium dioxide thin films is determined using spin-polarized density functional theory. Band structures as well as density of states are shown. Magnetic irregularities are observed in thin layers that Pb atoms adsorb. The thin film has been identified to have a pivotal thickness of 1.6 nm. Beyond the essential thickness, Pb is unable to cause magnetic anomalies. The atypical magnetic properties stem from the quantum confinement phenomenon and the relaxation of the surface. The film’s long-range sequence presents complexity. The positioning of defects is dictated by the concentration of Pb volume rather than its concentration on the surface. The thin film exhibits a pivotal interaction range of 1.0 nm. A gap between two neighboring spins can lead to fluctuations in the magnetic configuration’s stability or instability, contingent on the Pb volume concentration. If not, the impact of long-range order is minimal, and the stability between magnetic and non-magnetic setups is nearly identical.
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Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Magnetic and transport properties of perovskites and related materials · Electronic and Structural Properties of Oxides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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