Abstract
The exchange-bias field produced by antiferromagnetic monoxide films has been shown to scale with the density of uncompensated interfacial spins. The uncompensated spin density is inversely proportional to the interfacial grain diameter. Accordingly, we have prepared Ni0.5Co0.5O films in which the average interfacial grain diameter is small, but the grains are elongated, thus avoiding thermally activated fluctuations of the spin system associated with small grain volumes. The exchange-bias field remained inversely proportional to the interfacial grain diameter, and was increased to twice its previous maximum value without introducing significant thermal instability.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1314-1316 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 74 |
| Issue number | 9 |
| State | Published - Mar 1 1999 |
Fingerprint
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Increasing the exchange-bias field of Ni0.5Co0.5O films by microstructural control. / Martien, Dinesh; Takano, Kentaro; Berkowitz, A. E.; Smith, David.
In: Applied Physics Letters, Vol. 74, No. 9, 01.03.1999, p. 1314-1316.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Increasing the exchange-bias field of Ni0.5Co0.5O films by microstructural control
AU - Martien, Dinesh
AU - Takano, Kentaro
AU - Berkowitz, A. E.
AU - Smith, David
PY - 1999/3/1
Y1 - 1999/3/1
N2 - The exchange-bias field produced by antiferromagnetic monoxide films has been shown to scale with the density of uncompensated interfacial spins. The uncompensated spin density is inversely proportional to the interfacial grain diameter. Accordingly, we have prepared Ni0.5Co0.5O films in which the average interfacial grain diameter is small, but the grains are elongated, thus avoiding thermally activated fluctuations of the spin system associated with small grain volumes. The exchange-bias field remained inversely proportional to the interfacial grain diameter, and was increased to twice its previous maximum value without introducing significant thermal instability.
AB - The exchange-bias field produced by antiferromagnetic monoxide films has been shown to scale with the density of uncompensated interfacial spins. The uncompensated spin density is inversely proportional to the interfacial grain diameter. Accordingly, we have prepared Ni0.5Co0.5O films in which the average interfacial grain diameter is small, but the grains are elongated, thus avoiding thermally activated fluctuations of the spin system associated with small grain volumes. The exchange-bias field remained inversely proportional to the interfacial grain diameter, and was increased to twice its previous maximum value without introducing significant thermal instability.
UR - http://www.scopus.com/inward/record.url?scp=0011244203&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0011244203&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0011244203
VL - 74
SP - 1314
EP - 1316
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 9
ER -