Artificial Kagome Arrays of Nanomagnets: A Frozen Dipolar Spin Ice

Abstract

Magnetic frustration effects in artificial kagome arrays of nanomagnets are investigated using x-ray photoemission electron microscopy and Monte Carlo simulations. Spin configurations of demagnetized networks reveal unambiguous signatures of long range, dipolar interaction between the nanomagnets. As soon as the system enters the spin ice manifold, the kagome dipolar spin ice model captures the observed physics, while the short range kagome spin ice model fails.

arXiv comment4 pages, 4 figures, 1 table

References in corpus (6)

• Artificial "spin ice" in a geometrically frustrated lattice of nanoscale ferromagnetic islands
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• Dipolar spin correlations in classical pyrochlore magnets
• Magnetic multipole analysis of kagome and artificial ice dipolar arrays
• Energy minimization and AC demagnetization in a nanomagnet array
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