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VOLUME 59 (1994) | ISSUE 11 | PAGE 751
Magnetic and structural features of thin tantalum films with a fivefold symmetry axis
Structural and magnetic properties of thin films formed from an ensemble of tantalum clusters with a fivefold symmetry axis have been studied in fields up to 200 Oe. The magnetic response of pentagonal tantalum clusters is sharply higher than that of bulk tantalum. A shift of the hysteresis loop characteristic of complex noncollinear magnetic materials is observed at T=5 К after the films are cooled in an external magnetic field. It is suggested that the anomalies observed in the magnetic properties are due to the icosahedral symmetry of the clusters.