Small Antiferromagnetic Clusters |
| R. Buczko, Z. Wilamowski Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland and W. Jantsch Johannes Kepler Universität, 4040-Linz, Austria |
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| The analysis of the quantum mechanical model of mesoscopic size antiferromagnets shows that small antiferromagnets are characterized by a stronger exchange coupling and by an oscillating character of spins polarizations. Experimental evidence of the quantum character is discussed. We interpret the interlayer coupling in antiferromagnet superlattices and a puzzling resonance observed in nano-size antiferromagnet grains. |
| DOI: 10.12693/APhysPolA.90.747 PACS numbers: 75.10.Jm, 75.50.Rr |