dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | Universidade Federal de Uberlândia (UFU) | |
dc.contributor | Universidade Federal Fluminense (UFF) | |
dc.contributor | Universidade de São Paulo (USP) | |
dc.date.accessioned | 2014-05-27T11:28:38Z | |
dc.date.accessioned | 2022-10-05T18:45:38Z | |
dc.date.available | 2014-05-27T11:28:38Z | |
dc.date.available | 2022-10-05T18:45:38Z | |
dc.date.created | 2014-05-27T11:28:38Z | |
dc.date.issued | 2013-03-05 | |
dc.identifier | Physical Review B - Condensed Matter and Materials Physics, v. 87, n. 12, 2013. | |
dc.identifier | 1098-0121 | |
dc.identifier | 1550-235X | |
dc.identifier | http://hdl.handle.net/11449/74799 | |
dc.identifier | 10.1103/PhysRevB.87.125104 | |
dc.identifier | WOS:000315733200002 | |
dc.identifier | 2-s2.0-84874820607 | |
dc.identifier | 2-s2.0-84874820607.pdf | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3923750 | |
dc.description.abstract | We theoretically investigate the local density of states (LDOS) probed by an STM tip of ferromagnetic metals hosting a single adatom and a subsurface impurity. We model the system via the two-impurity Anderson Hamiltonian. By using the equation of motion with the relevant Green's functions, we derive analytical expressions for the LDOS of two host types: a surface and a quantum wire. The LDOS reveals Friedel-like oscillations and Fano interference as a function of the STM tip position. These oscillations strongly depend on the host dimension. Interestingly, we find that the spin-dependent Fermi wave numbers of the hosts give rise to spin-polarized quantum beats in the LDOS. Although the LDOS for the metallic surface shows a damped beating pattern, it exhibits the opposite behavior in the quantum wire. Due to this absence of damping, the wire operates as a spatially resolved spin filter with a high efficiency. © 2013 American Physical Society. | |
dc.language | eng | |
dc.relation | Physical Review B: Condensed Matter and Materials Physics | |
dc.relation | 1,604 | |
dc.rights | Acesso restrito | |
dc.source | Scopus | |
dc.title | Dimensionality effects in the local density of states of ferromagnetic hosts probed via STM: Spin-polarized quantum beats and spin filtering | |
dc.type | Artigo | |