Minimum Field Strength in Precessional Magnetization Reversal

C. H. Back; R. Allenspach; W. Weber; S. Parkin; D. Weller; E. L. Garwin; H. C. Siegmann

doi:10.1126/science.285.5429.864

Abstract

Ultrafast magnetic field pulses as short as 2 picoseconds are able to reverse the magnetization in thin, in-plane, magnetized cobalt films. The field pulses are applied in the plane of the film, and their direction encompasses all angles with the magnetization. At a right angle to the magnetization, maximum torque is exerted on the spins. In this geometry, a precessional magnetization reversal can be triggered by fields as small as 184 kiloamperes per meter. Applications in future ultrafast magnetic recording schemes can be foreseen.

Keywords

MagnetizationCondensed matter physicsSpinsField (mathematics)Magnetic fieldRemanencePicosecondUltrashort pulseOrbital magnetizationMaterials sciencePhysicsMagnetic anisotropyOptics

Affiliated Institutions

Related Publications

Antiparallel coupling between Fe layers separated by a Cr interlayer: Dependence of the magnetization on the film thickness

C. Carbone , S. F. Alvarado

Spin-polarized low-energy electron diffraction is applied for the first time to study the coupling between ferromagnetic and antiferromagnetic ultrathin films. The remanent magn...

1987 Physical review. B, Condensed matter 181 citations

Free carrier-induced ferromagnetism in structures of diluted magnetic semiconductors

T. Dietl , A. Haury , Y. Merle d’Aubigné

Ruderman-Kittel-Kasuya-Yosida interaction between localized spins is considered for various dimensionality structures of doped diluted magnetic semiconductors. The influence of ...

1997 Physical review. B, Condensed matter 420 citations

Domain Walls in Antiferromagnets and the Weak Ferromagnetism of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>α</mml:mi></mml:math>-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Fe</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

Yin-Yuan Li

At the N\'eel temperature local nucleations of the antiferromagnetic order and their subsequent growth lead to the formation of domain walls. The domains in an antiferromagnet a...

1956 Physical Review 117 citations

Magnetic properties of sandwiches and superlattices of fcc Fe(001) grown on Cu(001) substrates

John Dutcher , B. Heinrich , J. F. Cochran +2 more

The magnetic properties of Cu/Fe epitaxial sandwiches and superlattices have been measured using Brillouin light scattering and ferromagnetic resonance. All of the samples are p...

1988 Journal of Applied Physics 80 citations

On the Theory of Spin Waves in Ferromagnetic Media

Conyers Herring , C. Kittel

The theory of spin waves, leading to the Bloch ${T}^{\frac{3}{2}}$ law for the temperature variation of saturation magnetization, is discussed for ferromagnetic insulators and m...

1951 Physical Review 556 citations

Publication Info

Year: 1999
Type: article
Volume: 285
Issue: 5429
Pages: 864-867
Citations: 287
Access: Closed

External Links

Download PDF (Free) View on DOI.org PubMed Semantic Scholar

Social Impact

Altmetric

Minimum Field Strength in Precessional Magnetization Reversal

PlumX Metrics

Social media, news, blog, policy document mentions

Citation Metrics

287

OpenAlex

Influential

274

CrossRef

Cite This

APA Style

                            
                                
                                    C. H. Back, 
                                
                                    R. Allenspach, 
                                
                                    W. Weber
                                
                                et al.
                            
                            (1999). 
                            Minimum Field Strength in Precessional Magnetization Reversal. 
                            Science
                            , 285
                            (5429)
                            , 864-867.
                            https://doi.org/10.1126/science.285.5429.864
                        

Identifiers

DOI: 10.1126/science.285.5429.864
PMID: 10436149

Data Quality

Data completeness: 77%