Magnetic Field Assisted Etching of Porous Silicon as a Tool to Enhance Magnetic Characteristics

Granitzer, Petra; Rumpf, Klemens; Ohta, Toshiyuki; Koshida, Nobuyoshi; Poelt, Peter; Reissner, M.

doi:10.1149/05037.0055ecst

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…These composites have potential in magnetic sensors and magneto-optic devices in integrated Si-based circuits, and detectors of spin-injection from ferromagnetic metals to Si. (Granitzer and Rumpf, 2010 , 2011 ; Granitzer et al, 2013 ).…”

Section: Other Templatesmentioning

confidence: 96%

Hard template synthesis of metal nanowires

2014

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Metal nanowires (NWs) have attracted much attention because of their high electron conductivity, optical transmittance, and tunable magnetic properties. Metal NWs have been synthesized using soft templates such as surface stabilizing molecules and polymers, and hard templates such as anodic aluminum oxide, mesoporous oxide, carbon nanotubes. NWs prepared from hard templates are composites of metals and the oxide/carbon matrix. Thus, selecting appropriate elements can simplify the production of composite devices. The resulting NWs are immobilized and spatially arranged, as dictated by the ordered porous structure of the template. This avoids the NWs from aggregating, which is common for NWs prepared with soft templates in solution. Herein, the hard template synthesis of metal NWs is reviewed, and the resulting structures, properties and potential applications are discussed.

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Section: Other Templatesmentioning

confidence: 96%

Hard template synthesis of metal nanowires

2014

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“…The coercivity decreases with increasing elongation of the deposits, the magnetic anisotropy between easy and hard axis magnetization increases with increasing structure length. The morphology of the template, especially the degree of dendritic growth also plays a crucial role which influences the magnetic crosstalk between neighboring pores [31].…”

Section: Introductionmentioning

confidence: 99%

Metal Filled Nanostructured Silicon With Respect to Magnetic and Optical Properties

Granitzer

Rumpf

2020

Front. Phys.

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Within this work the utilization of nanostructured silicon as host material for filling with various magnetic nanostructures is reviewed whereas the magnetic and optical properties of the gained composite systems are elucidated. The metal filling of the pores is mainly performed by electroless deposition or by electrodeposition which is discussed by means of some examples. Furthermore, two different types of porous silicon (PSi) morphology are used for the deposition procedure. On the one hand microporous silicon offering luminescence in the visible range is utilized as template material. It offers a branched morphology with a structure size between 2 and 5 nm. In this case not only the magnetic response is investigated but also the influence of the metal filling on the optical properties. On the other hand mesoporous and macroporous silicon in it's low pore regime is employed which offers straight pores with diameters up to 90 nm. In this case the magnetic response strongly depends on the size, the geometry and the spatial distribution of the metal deposits within the pores. A crucial role plays also the morphology of the porous silicon, especially the distance between adjacent pores which is an important parameter regarding magnetic interactions.

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Silicon Porosification: Approaches to PSi Parameters Control

2016

Porous Silicon: From Formation to Application: Formation and Properties, Volume One

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Magnetic Field Assisted Etching of Porous Silicon as a Tool to Enhance Magnetic Characteristics

Cited by 4 publications

References 13 publications

Hard template synthesis of metal nanowires

Hard template synthesis of metal nanowires

Metal Filled Nanostructured Silicon With Respect to Magnetic and Optical Properties

Silicon Porosification: Approaches to PSi Parameters Control

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