Magic numbers in the magnetic properties of gadolinium clusters
Gadolinium clusters (N = 11-92) in a molecular beam exhibit dramatic size dependences in their magnetic properties. Two principal behaviors are observed: rigid rotor precession and nutation when the magnetic moment is tightly locked to the lattice by crystal anisotropy, and superparamagnetism when t...
Saved in:
| Published in: | Physical review letters Vol. 68; no. 11; pp. 1774 - 1777 |
|---|---|
| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
United States
16-03-1992
|
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Gadolinium clusters (N = 11-92) in a molecular beam exhibit dramatic size dependences in their magnetic properties. Two principal behaviors are observed: rigid rotor precession and nutation when the magnetic moment is tightly locked to the lattice by crystal anisotropy, and superparamagnetism when the moment is approximately free. Partially locked behavior is also seen. Magnetic moments of approx 3 mu sub B /atom are observed, with Curie temperatures substantially above the bulk value. Moments that remain locked > 300K may permit ultrahigh density magnetic memory. |
|---|---|
| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1 |
| ISSN: | 0031-9007 1079-7114 |
| DOI: | 10.1103/physrevlett.68.1774 |