### Abstract

We have found that the frequencies of continuous-wave (CW) microwave oscillations in nanocontact spin-transfer (ST) devices occur in well-defined planes of frequencies, as a function of the dc current bias, the direction of the magnetic field, and the magnitude of the magnetic field. The frequency, f, of these technologically significant peaks for each magnetic field direction is described empirically by the equation of a plane, f = a|B→| + bI + c, where |B→| is the magnitude of the magnetic field, I is the dc bias current, and a, b, and c are constants of the plane. The primary frequency plane described by this equation is accompanied by a smaller secondary plane. The empirical equation describing the primary plane serves as a guide for efficiently locating CW oscillations within the independent variable space.

Original language | English (US) |
---|---|

Pages (from-to) | 1934-1940 |

Number of pages | 7 |

Journal | IEEE Transactions on Magnetics |

Volume | 43 |

Issue number | 5 |

DOIs | |

State | Published - May 2007 |

### Fingerprint

### Keywords

- Continuous-wave oscillation
- Frequency plane
- Magnetic nanocontact device
- Spin-transfer

### ASJC Scopus subject areas

- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)

### Cite this

*IEEE Transactions on Magnetics*,

*43*(5), 1934-1940. https://doi.org/10.1109/TMAG.2007.891455

**Planes of continuous-wave oscillations from an electron nanocontact spin-transfer device.** / Cameron, G. P.; Schraufnagel, D. J.; Fjerstad, W. H.; Sokolov, V.; Daniel, E. S.; Gilbert, Barry Kent.

Research output: Contribution to journal › Article

*IEEE Transactions on Magnetics*, vol. 43, no. 5, pp. 1934-1940. https://doi.org/10.1109/TMAG.2007.891455

}

TY - JOUR

T1 - Planes of continuous-wave oscillations from an electron nanocontact spin-transfer device

AU - Cameron, G. P.

AU - Schraufnagel, D. J.

AU - Fjerstad, W. H.

AU - Sokolov, V.

AU - Daniel, E. S.

AU - Gilbert, Barry Kent

PY - 2007/5

Y1 - 2007/5

N2 - We have found that the frequencies of continuous-wave (CW) microwave oscillations in nanocontact spin-transfer (ST) devices occur in well-defined planes of frequencies, as a function of the dc current bias, the direction of the magnetic field, and the magnitude of the magnetic field. The frequency, f, of these technologically significant peaks for each magnetic field direction is described empirically by the equation of a plane, f = a|B→| + bI + c, where |B→| is the magnitude of the magnetic field, I is the dc bias current, and a, b, and c are constants of the plane. The primary frequency plane described by this equation is accompanied by a smaller secondary plane. The empirical equation describing the primary plane serves as a guide for efficiently locating CW oscillations within the independent variable space.

AB - We have found that the frequencies of continuous-wave (CW) microwave oscillations in nanocontact spin-transfer (ST) devices occur in well-defined planes of frequencies, as a function of the dc current bias, the direction of the magnetic field, and the magnitude of the magnetic field. The frequency, f, of these technologically significant peaks for each magnetic field direction is described empirically by the equation of a plane, f = a|B→| + bI + c, where |B→| is the magnitude of the magnetic field, I is the dc bias current, and a, b, and c are constants of the plane. The primary frequency plane described by this equation is accompanied by a smaller secondary plane. The empirical equation describing the primary plane serves as a guide for efficiently locating CW oscillations within the independent variable space.

KW - Continuous-wave oscillation

KW - Frequency plane

KW - Magnetic nanocontact device

KW - Spin-transfer

UR - http://www.scopus.com/inward/record.url?scp=34247379492&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34247379492&partnerID=8YFLogxK

U2 - 10.1109/TMAG.2007.891455

DO - 10.1109/TMAG.2007.891455

M3 - Article

AN - SCOPUS:34247379492

VL - 43

SP - 1934

EP - 1940

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

SN - 0018-9464

IS - 5

ER -