Year: 2018
Type: article
Abstract: We report an interesting case where magnetic phenomena can transcend mesoscopic scales. Our system consists of tubes created by the assembly of dipolar spheres. The cylindrical topology results in the breakup of degeneracy observed in planar square and triangular packings. As far as the ground state is concerned, the tubes switch from circular to axial magnetization with increasing tube length. All magnetostatic properties found in magnetic nanotubes, in which the dipolar interaction is comparable to or dominant over the exchange interaction, are reproduced by the dipolar tubes including an intermediary helically magnetized state. Besides, we discuss the antiferromagnetic phase resulting from the square arrangement of the dipolar spheres and its interesting vortex state.
Source: Nanoscale
DOI: 10.1039/c8nr06936k
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: Institute of Physics Belgrade, European Commission, Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja, Horizon 2020 Framework Programme, Comisión Nacional de Investigación Científica y Tecnológica, Fondo de Fomento al Desarrollo Científico y Tecnológico, H2020 Marie Skłodowska-Curie Actions
Awards: Designing Advanced Functionalities through controlled NanoElement integration in OXide thin films, G1400182876, G222501911, G2288346257, G3868733832, G4424089256, Designing Advanced Functionalities through controlled NanoElement integration in OXide thin films, G528495715, G5970660383, G7361210259, G7412154610
OpenAlex ID: W2888896448