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Spin pattern of few (1 1 1) monolayers of the type II antiferromagnet EuTe

✍ Scribed by S Holl; S Janecek; H Krenn

Book ID: 104427474
Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 141 KB
Volume: 10
Category: Article
ISSN: 1386-9477
DOI: 10.1016/s1386-9477(01)00130-8

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✦ Synopsis

A degenerate ground state spin pattern is found for the type II antiferromagnet EuTe in the bulk limit. The model system is EuTe with ferromagnetic nearest neighbor (NN; J1=0:06 K) and antiferromagnetic next nearest neighbor (NNN; J2=-0:16 K) exchange interaction. For the non-trivial ground state the spins within a single (1 1 1) plane are no longer all parallel. Instead a quarter of the spins are parallel to the NN spins in the adjacent layer. This state becomes metastable if dipolar interaction is taken into account, or for low-dimensional structures of few (1 1 1)-monolayer systems of EuTe.

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✦ Synopsis

Spin pattern of few (1 1 1) monolayers of the type II antiferromagnet EuTe