Observation of surface-enhanced magnetic order and magnetic surface reconstruction on Gd(0001)

Epitaxial Gd(0001) has been investigated with spin-polarized low-energy-electron diffraction and the magneto-optic Kerr effect. The ferromagnetic critical temp. of the surface layer is found to lie up to 22K above the bulk Curie point, demonstrating the existence of surface-enhanced magnetic order....

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Physical review letters 1985-04, Vol.54 (14), p.1555-1558
Hauptverfasser:	WELLER, D, ALVARADO, S. F, GUDAT, W, SCHRÖDER, K, CAMPAGNA, M
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Magnetic properties and materials Magnetic properties of surface, thin films and multilayers Materials science Metals, semimetals and alloys Physics Specific materials
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Epitaxial Gd(0001) has been investigated with spin-polarized low-energy-electron diffraction and the magneto-optic Kerr effect. The ferromagnetic critical temp. of the surface layer is found to lie up to 22K above the bulk Curie point, demonstrating the existence of surface-enhanced magnetic order. Furthermore, spin-resolved photoemission spectroscopy reveals that the 4f spins of the surface are not ferromagnetically coupled to the bulk moments. 18 ref.--AA
ISSN:	0031-9007 1079-7114
DOI:	10.1103/physrevlett.54.1555