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Size-dependent paramagnetic-ferromagnetic phase transition in palladium clusters
2000 (English)In: Physical Review B Condensed Matter, ISSN 0163-1829, E-ISSN 1095-3795, Vol. 62, no 18, 11957-11960 p.Article in journal (Refereed) Published
Abstract [en]

Ab initio calculations performed for T=0 K show that in palladium clusters below a critical size the high surface energy anisotropy stabilizes the icosahedral multiply twinned particle structure against the fee structure. Model calculations support the appearance of ferromagnetic order for the noncrystallographic icosahedral symmetry with a small (0.11 mu (B)) magnetic moment per atom. These results explain the recent experimental findings [Europhys. Lett. 38, 195 (1997)] that small free palladium clusters exhibit spontaneous ferromagnetic order.

Place, publisher, year, edition, pages
2000. Vol. 62, no 18, 11957-11960 p.
Keyword [en]
multiply twinned particles, electronic-structure, 4d, magnetism, energy, metals
URN: urn:nbn:se:kth:diva-20151ISI: 000165224500011OAI: diva2:338844
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Vitos, LeventeJohansson, Börje
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