Method of dynamic resonance tuning in spintronics of nanosystems

Abstract

A method is advanced allowing for fast regulation of magnetization direction in magnetic nanosystems. The examples of such systems are polarized nanostructures, magnetic nanomolecules, magnetic nanoclusters, magnetic graphene, dipolar and spinor trapped atoms, and quantum dots. The emphasis in the paper is on magnetic nanomolecules and nanoclusters. The method is based on two principal contrivances: First, the magnetic sample is placed inside a coil of a resonant electric circuit creating a feedback field, and second, there is an external magnetic field that can be varied so that to dynamically support the resonance between the Zeeman frequency of the sample and the natural frequency of the circuit during the motion of the sample magnetization. This method can find applications in the production of memory devices and other spintronic appliances.

arXiv commentLatex file, 15 pages, 5 figures

References in corpus (18)

• Condensed Matter Theory of Dipolar Quantum Gases
• Single-molecule Nanomagnets
• Effects of symmetry breaking in finite quantum systems
• Strongly interacting ultracold polar molecules
• Nonlinear Spin Dynamics in Nuclear Magnets
• Dipolar and spinor bosonic systems
• Nonlinear spin relaxation in strongly nonequilibrium magnets
• Coherent spin relaxation in molecular magnets
• Applications of Nanomagnets as Dynamical Systems
• Absence of spin superradiance in resonatorless magnets
• Processing Information by Punctuated Spin Superradiance
• Coherent radiation by molecular magnets
• Optimal conditions for magnetization reversal of nanocluster assemblies with random properties
• Fast magnetization reversal of nanoclusters in resonator
• Generation of coherent radiation by magnetization reversal in graphene
• Regulating spin reversal in dipolar systems by the quadratic Zeeman effect
• Spin dynamics in lattices of spinor atoms with quadratic Zeeman effect
• Triggering spin reversal in nanomolecules and nanoclusters on demand