Micromagnetic behavior of electrodeposited cylinder arrays

Ross, C. A.; Hwang, M.; Shima, Mutsuhiro; Cheng, Jai-Hong; Farhoud, M.; Savas, T. A.; Smith, Henry I.; Schwarzacher, Walther; Ross, Frances M.; Redjdal, M.; Humphrey, F. B.

doi:10.1103/physrevb.65.144417

Cited by 251 publications

(206 citation statements)

References 44 publications

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“…At this point we need to specify the value of the parameter n for the core profile defined by equation (4). In a previous work, Landeros et al [14] showed that the magnetic vortex core can be well described for almost any value of n > 1.…”

Section: Interdot Magnetostatic Couplingmentioning

confidence: 99%

“…Here, P F Q denotes the generalized hypergeometric function, Γ (x) is the gamma function and n corresponds to the exponent used in the core model defined by Equation (4).…”

Section: Self-energymentioning

confidence: 99%

“…[10,11,12] Recent studies on such structures have been carried out with the aim of determining the stable magnetized state as a function of the geometry of the particles. [3,4,13,14,15,16] In the case of cylindrical particles, three idealized characteristic configurations have been identified: ferromagnetic with the magnetization parallel to the basis of the cylinder, ferromagnetic with the magnetization parallel to the cylinder axis, and a vortex state in which most of the magnetic moments lie parallel to the basis of the cylinder. The occurrence of each of these configurations depends on geometrical factors, such as the linear dimensions and their aspect ratio τ ≡ H/R, with H the height and R the radius of the cylinder.…”

Section: Introductionmentioning

confidence: 99%

“…Common structures are arrays of wires, [1,2] cylinders, [3,4] rings, [5,6] and tubes. [7,8] Such structures can be tailored to display different stable magnetized states, depending on their geometric details.…”

Section: Introductionmentioning

confidence: 99%

“…The occurrence of each of these configurations depends on geometrical factors, such as the linear dimensions and their aspect ratio τ ≡ H/R, with H the height and R the radius of the cylinder. [3,4,13,14] Another issue to be considered is the interaction between particles. In this case the interparticle distance, D, is the important parameter.…”

Section: Introductionmentioning

confidence: 99%

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Vortex core size in interacting cylindrical nanodot arrays

et al. 2007

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The effect of dipolar interactions among cylindrical nanodots, with a vortex-core magnetic configuration, is analyzed by means of analytical calculations. The cylinders are placed in a N × N square array in two configurations -cores oriented parallel to each other and with antiparallel alignment between nearest neighbors. Results comprise the variation in the core radius with the number of interacting dots, the distance between them and dot height. The dipolar interdot coupling leads to a decrease (increase) of the core radius for parallel (antiparallel) arrays.

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Section: Interdot Magnetostatic Couplingmentioning

confidence: 99%

“…Here, P F Q denotes the generalized hypergeometric function, Γ (x) is the gamma function and n corresponds to the exponent used in the core model defined by Equation (4).…”

Section: Self-energymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Vortex core size in interacting cylindrical nanodot arrays

et al. 2007

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Ferromagnetic Filled Carbon Nanotubes as Novel and Potential Containers for Anticancer Treatment Strategies

Moench

Meye

Leonhardt

2003

Nanotechnologies for the Life Sciences

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The sections in this article are Introduction Prostate Cancer Incidence, Risk Factors and Diagnostic Criteria Treatment Options, Outcome and Limits MWCNT Model Carbon Nanotubes General Remarks Preparation and Structure of Filled Multi‐walled Carbon Nanotubes Synthesis of Ferromagnetic Filled Multi‐walled Carbon Nanotubes Crystallographic Structure of Core Material in Filled Multi‐walled Carbon Nanotubes Growth Mechanism of Multi‐walled Carbon Nanotubes Post‐treatment: Opening, Filling and Closing of MWCNTs Magnetism in Nano‐sized Materials General Remarks Magnetization in Nano‐sized Materials Influence of the Dimensions on the Magnetization Distribution Anisotropy and Interaction Magnetic Reversal Magnetic Properties of Filled Multi‐walled Carbon Nanotubes Heat Generation General Remarks Requirements for the Development of Materials for Hyperthermia and Magnetism Specific Absorption Rate ( SAR ) Study Results for In Vitro and In Vivo Applications of ff‐ MWCNTs Efficient Endocytosis In Vitro , Lipid‐mediated Could Enhance the Internalization Rate and Efficiency Production of Two Types of ff‐ MWCNTs for In Vivo Application Outlook/Next Steps in Evaluation of these fff ‐ MWCNTs Acknowledgments

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Shark Skin Inspired Riblet Coatings for Aerodynamically Optimized High Temperature Applications in Aeroengines

Büttner

Schulz

2010

Adv Eng Mater

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The shark skin effect is the mechanism of wall friction reduction of a fluid due to a riblet structured surface. A new application for riblet surfaces may be jet engine blades. Riblet structured coatings on the blades would act as oxidation protection and additionally reduce the skin drag on the surface. In this study structuring surface areas of high temperature nickel‐based alloys is investigated. These alloys are used for compressor and turbine blades near the combustion chamber. Experiments are performed by depositing titanium on a nickel base alloy through particular metal grids using magnetron sputtering. For single‐digit micrometer structures, photolithography with subsequent electrodeposition of nickel as well as sputter deposition and thermal evaporation of several materials are investigated. Successfully fabricated structures are oxidized at 900–1 000 °C for up to 100 h and the resulting shape is characterized using scanning electron microscopy. The most accurate structures are obtained using photolithography and subsequent electrodeposition. The reduction of the wall shear stress was measured in an oil channel. The riblet structures prior to oxidation show a reduction of the wall shear stress of up to 4.9%.

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Micromagnetic behavior of electrodeposited cylinder arrays

Cited by 251 publications

References 44 publications

Vortex core size in interacting cylindrical nanodot arrays

Vortex core size in interacting cylindrical nanodot arrays

Ferromagnetic Filled Carbon Nanotubes as Novel and Potential Containers for Anticancer Treatment Strategies

Shark Skin Inspired Riblet Coatings for Aerodynamically Optimized High Temperature Applications in Aeroengines

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