Abstract
Nanomagnetic systems show exotic memory effects in the dc magnetization as a function of temperature. We present magnetization measurements on systems of nanomagnetic particles that show that such systems store the memory of either decrease or increase of magnetic field enabling a magnetic "coding" of "0"s and "1"s. Application of a field larger than a critical field, H* erases the memory effects. We show that this behavior can be explained by a wide distribution of grain sizes having different blocking temperatures. The effect can be used as a tool for measuring spacial and temporal magnetization changes of a magnetic surface.
| Original language | English |
|---|---|
| Article number | 042501 |
| Pages (from-to) | 1-3 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 88 |
| Issue number | 4 |
| DOIs | |
| State | Published - 2006 |
Bibliographical note
Funding Information:The authors gratefully acknowledge useful discussions with S. Sen. This research was supported by the Israel Science Foundation (Grant No. 249/05).
Funding
The authors gratefully acknowledge useful discussions with S. Sen. This research was supported by the Israel Science Foundation (Grant No. 249/05).
| Funders | Funder number |
|---|---|
| Israel Science Foundation | 249/05 |