605 citations · 4.9k across the 51 of their papers we have counts for
17 papers · 1 filter
Tailoring exchange interactions in engineered nanostructures: Ab initio study
O. O. Brovko, P. A. Ignatiev, V. S. Stepanyuk +1
We present a novel approach to spin manipulation in atomic-scale nanostructures. Our ab initio calculations clearly demonstrate that it is possible to tune magnetic properties of s…
Study of the topological Hall effect on simple models
G. Metalidis, P. Bruno
Recently, a chirality-driven contribution to the anomalous Hall effect has been found that is induced by the Berry phase and does not directly involve spin-orbit coupling. In this…
Equilibrium spin currents and magnetoelectric effect in magnetic nanostructures
Patrick Bruno, Vitalii K. Dugaev
We discuss the problem of equilibrium spin currents in ferromagnets with inhomogeneous magnetization. Using simple microscopic models we explain the physical origin of equilibrium…
Berry phase effects in magnetism
Patrick Bruno
Lecture notes published in ''Magnetism goes nano'', Lecture Manuscripts of the 36th Spring School of the Institute of Solid State Research, edited by Stefan Bluegel, Thomas Bruecke…
Non-quantized Dirac monopoles and strings in the Berry phase of anisotropic spin systems
Patrick Bruno
The Berry phase of an anisotropic spin system that is adiabatically rotated along a closed circuit C is investigated. It is shown that the Berry phase consists of two contributions…
Twisted exchange interaction between localized spins embedded in a one- or two-dimensional electron gas with Rashba spin-orbit coupling
Hiroshi Imamura, Patrick Bruno, Yasuhiro Utsumi
We study theoretically the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in one- and two-dimensions in presence of a Rashba spin-orbit (SO) coupling. We show that rotation of th…
Indirect Exchange Interaction between two Quantum Dots in an Aharonov-Bohm Ring
Yasuhiro Utsumi, Jan Martinek, Patrick Bruno +1
We investigate the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between two spins located at two quantum dots embedded in an Aharonov-Bohm (AB) ring. In such a system the RKKY…
Non-existence of spin-asymmetry of conductance in two-terminal devices
P. Bruno, T. P. Pareek
This paper is Comment to the Letter "Oscillatory Spin-Filtering due to Gate Control of Spin-Dependent Interface Conductance", by D. Grundler (PRL 86, 1058 (2001)).
Magnetic Scanning Tunneling Microscopy with a Two-Terminal Non-Magnetic Tip: Quantitative Results
T. P. Pareek, Patrick Bruno
We report numerical simulation result of a recently proposed \{P. Bruno, Phys. Rev. Lett {\bf 79}, 4593, (1997)\} approach to perform magnetic scanning tunneling microscopy with a…
Ab-initio calculations of exchange interactions, spin-wave stiffness constants, and Curie temperatures of Fe, Co, and Ni
Marek Pajda, Josef Kudrnovsky, Ilja Turek +2
We have calculated Heisenberg exchange parameters for bcc-Fe, fcc-Co, and fcc-Ni using the scalar-relativistic spin-polarized Green function technique within the tight-binding line…
Theory of interlayer exchange interactions in magnetic multilayers
Patrick Bruno
This paper presents a review of the phenomenon of interlayer exchange coupling in magnetic multilayers. The emphasis is put on a pedagogical presentation of the mechanism of the ph…
Theory of interlayer exchange coupling
Patrick Bruno
This paper contains the notes of lectures on the theory of interlayer exchange coupling presented at the 30-th Ferienschule of the Institut fuer Festkoerperforschung, Forschungszen…
Geometrically constrained magnetic wall
Patrick Bruno
The structure and properties of a geometrically constrained magnetic wall in a constriction separating two wider regions are investigated theoretically. They are shown to differcon…
The combined effect of temperature and disorder on interlayer exchange coupling in magnetic multilayers
Vaclav Drchal, Josef Kudrnovsky, Patrick Bruno +2
We study the combined effect of temperature and disorder in the spacer on the interlayer exchange coupling. The temperature dependence is treated on ab initio level. We employ the…
Ab initio theory of the interlayer exchange coupling
Josef Kudrnovsky, Vaclav Drchal, Ilja Turek +3
Ab initio formulations of the interlayer exchange coupling (IEC) between two, in general non-collinearly aligned magnetic slabs embedded in a non-magnetic spacer are reviewed where…
Influence of disorder on the perpendicular magnetoresistance of magnetic multilayers
Patrick Bruno, Hiroyoshi Itoh, Junichiro Inoue +1
The effect of disorder on the perpendicular magnetoresistance of magnetic multilayers is investigated theoretically. Various kinds of disorder are considered: (i) interface substit…
Interlayer exchange coupling: Preasymptotic corrections
Patrick Bruno
In the asymptotic limit, the interlayer exchange coupling decays as , where is the spacer thickness. A systematic procedure for calculating the preasymptotic correction…