Topologically Protected Magnetic Helix for All-Spin-Based Applications

Abstract

The recent years have witnessed an emergence of the field of all-spin-based devices without any flow of charge. An ultimate goal of this scientific direction is the realization of full spectrum of spin-based networks like in modern electronics. The concepts of energy storing elements, indispensable for those networks, are so far lacking. Analyzing analytically the size dependent properties of magnetic chains that are coupled via either exchange or long-range dipolar or Ruderman-Kittel-Kasuya-Yosida interactions, we discover a particularly simple law: magnetic configurations corresponding to helices with integer number of twists, that are commensurate with the chain's length, are energetically stable. This finding, supported by simulations and an experimentally benchmarked model, agrees with the study [J. Appl. Phys. \textbf{111}, 07E116 (2012)] showing that boundaries can topologically stabilize structures that are not stable otherwise. On that basis an energy storing element is proposed.

Cited by in corpus (14)

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• Controlled Creation of Quantum Skyrmions
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• Rotating edge-field driven processing of chiral spin textures in racetrack devices
• Topological spin torque emerging in classical-spin systems with different time scales
• Quantum spin helices more stable than the ground state: onset of helical protection
• Topological energy release from collision of relativistic antiferromagnetic solitons
• Coherent charge and magnetic ordering in Ho/Y superlattice revealed by element-selective x-ray scattering
• Formation and crossover of multiple helical dipole chains
• Nematronics: Reciprocal coupling between ionic currents and nematic dynamics
• Generalized Josephson effect with arbitrary periodicity in quantum magnets
• Creation and motion of antiferromagnetic skyrmions by edge manipulation