Magnetic structures at the ferromagnetic NiFe and antiferromagnetic NiMn interface in exchange-biased films: Role of noncollinear magnetism and roughness

Nakamura, Kohji; Freeman, Arthur J; Wang, Ding Sheng; Zhong, Le; Fernandez-de-Castro, J.

doi:10.1103/physrevb.65.012402

Cited by 39 publications

(30 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…20 The ab initio treatment of the noncollinear magnetic structure of an evolving fluid has remained a challenging task in atomic scale theory, and most investigations still focus on the magnetism of static configurations. [23][24][25][26][27][28][29][30] In our work, the calculated magnetic correlation function shows a good agreement with results from elastic neutron scattering. 20 The present work complements our previous study in two ways.…”

Section: Introductionsupporting

confidence: 72%

Noncollinear magnetism in liquid oxygen: A first-principles molecular dynamics study

Oda

Pasquarello

2004

Phys. Rev. B

View full text Add to dashboard Cite

We perform first-principles molecular dynamics of liquid oxygen in which the magnetic structure evolves according to a generalized density-functional scheme allowing for noncollinear spin configurations. We investigate both structural correlations between the orientations of the molecular axes and magnetic correlations between the orientations of the molecular magnetic moments, demonstrating a clear relation between the local molecular configuration and the relative magnetic arrangement. The nuclear structure factor obtained from the simulation is found to agree well with the experimental one. The calculated magnetic structure factor shows antiferromagnetic correlations between molecules in the first shell, in accord with spin-polarized neutron scattering measurements. We observe the formation of dynamically coupled molecules, known as O 4 units, in which the molecular moments are aligned in an antiferromagnetic fashion. An analysis based on the life time of such units, revealed that in most cases the O 4 units occur as transient configurations during collisions. However, we also observed a small fraction of O 4 units surviving for relatively long periods. To account for electronic excitations which are missed in our density-functional scheme, we complement our description with a mean field model for the thermal fluctuations of the magnetic structure. The combined scheme is found to improve the description of the magnetic neutron structure factor and allows us to study the dependence of the magnetic susceptibility on temperature.

show abstract

Section: Introductionsupporting

confidence: 72%

Noncollinear magnetism in liquid oxygen: A first-principles molecular dynamics study

Oda

Pasquarello

2004

Phys. Rev. B

View full text Add to dashboard Cite

show abstract

“…Calculations are carried out in the SRA (without SOC) for the valence electrons and fully relativistically for the core electrons, based on the LSDA using the von Barth-Hedin exchangecorrelation [17], in which the spin-spiral structures are treated by applying the generalized Bloch theorem [18,19] into the film FLAPW method [11][12][13][14]. The LAPW basis with a cutoff of jk þ G Ç q=2j 3:6a.u.…”

Section: Model and Methodsmentioning

confidence: 99%

“…In order to investigate and understand the magnetism in the monolayer Fe/W(1 1 0), here, we calculate the formation energy of the spin-spiral structures by means of the film full-potential linearized augmented plane-wave (film FLAPW) method [11,12] that incorporates intra-atomic noncollinear magnetism [13,14]. Then, we determine the exchange parameters within the onedimensional effective Heisenberg model, and discuss the stability of the spin-spiral and domain wall structures.…”

Section: Introductionmentioning

confidence: 99%

Spin-spiral and domain wall structures in monolayer Fe/W(110)

Nakamura

Akiyama

2009

Applied Surface Science

Self Cite

View full text Add to dashboard Cite

“…Special interest here is focused on the compensated interface where the net moment at the AF surface vanishes. Thus far, few first-principles calculation on this situation has been reported, except for the study by Nakamura et al [3] where the magnetic structures of NiFe/ NiMn interface were investigated. The comparison of the present work and theirs will be made later.…”

Section: Introductionmentioning

confidence: 98%

First-principles calculations of magnetic and electronic structures around surfaces and interfaces of magnetic multi-layered structure

Sakuma

2006

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

Magnetic structures at the ferromagnetic NiFe and antiferromagnetic NiMn interface in exchange-biased films: Role of noncollinear magnetism and roughness

Cited by 39 publications

References 22 publications

Noncollinear magnetism in liquid oxygen: A first-principles molecular dynamics study

Noncollinear magnetism in liquid oxygen: A first-principles molecular dynamics study

Spin-spiral and domain wall structures in monolayer Fe/W(110)

First-principles calculations of magnetic and electronic structures around surfaces and interfaces of magnetic multi-layered structure

Contact Info

Product

Resources

About