Artificial Kagome Arrays of Nanomagnets: A Frozen Dipolar Spin Ice

Details Artificial Kagome Arrays of Nanomagnets: A Frozen Dipolar Spin Ice Artificial Kagome Arrays of Nanomagnets: A Frozen Dipolar Spin Ice

2011-02-11

arxiv.org/abs/1102.2455v1

Physical Review Letters 106, 057209 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures, 1 table

Scientific paper

10.1103/PhysRevLett.106.057209

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.

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