Resonant tunneling in magnetoresistive Ni/NiO/Co nanowire junctions

Sokolov, Andrei; Sabirianov, Ildar; Tsymbal, Evgeny Y.; Doudin, B.; Li, X. Z.; Redepenning, Jody

doi:10.1063/1.1558657

Cited by 10 publications

(4 citation statements)

References 19 publications

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“…Systematic studies of Co/Cu (143), NiFe/Cu (144), and Ni 80 Fe 20 /Cu nanowires (145) with various repeat schemes have enabled the measurement of interface scattering and spin diffusion lengths in these structures. A nanowire Ni/NiO/Co magnetic tunnel junction was also recently demonstrated (146). However, the field of true one-dimensional nanostructure spintronic devices is in its infancy; nanowires featuring charge-in-plane (CIP) and more complex magnetotransport geometries are now possible (66) but not yet proven.…”

Section: Magnetic Effectsmentioning

confidence: 99%

Semiconductor Nanowires and Nanotubes

Law

Goldberger

Yang

2004

Annu. Rev. Mater. Res.

1,367

953

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Semiconductor nanowires and nanotubes exhibit novel electronic and optical properties owing to their unique structural one-dimensionality and possible quantum confinement effects in two dimensions. With a broad selection of compositions and band structures, these one-dimensional semiconductor nanostructures are considered to be the critical components in a wide range of potential nanoscale device applications. To fully exploit these one-dimensional nanostructures, current research has focused on rational synthetic control of one-dimensional nanoscale building blocks, novel properties characterization and device fabrication based on nanowire building blocks, and integration of nanowire elements into complex functional architectures. Significant progress has been made in a few short years. This review highlights the recent advances in the field, using work from this laboratory for illustration. The understanding of general nanocrystal growth mechanisms serves as the foundation for the rational synthesis of semiconductor heterostructures in one dimension. Availability of these high-quality semiconductor nanostructures allows systematic structural-property correlation investigations, particularly of a size-and dimensionality-controlled nature. Novel properties including nanowire microcavity lasing, phonon transport, interfacial stability and chemical sensing are surveyed.

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Section: Magnetic Effectsmentioning

confidence: 99%

Semiconductor Nanowires and Nanotubes

Law

Goldberger

Yang

2004

Annu. Rev. Mater. Res.

1,367

953

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“…Sokolov et al. described the synthesis of Ni/NiO/Co NWs by electrochemical deposition of Ni, chemical anodization of Ni in a pH 8.4 solution of Na 3 BO 3 and H 2 B 4 O 7 , and finally electrochemical deposition of Co from a nonaqueous plating bath to avoid dissolution of the oxide 326. They formed the ≈80‐nm‐diameter and 6‐μm‐long segmented wires in polyester track‐etch membranes and performed magnetotransport studies.…”

Section: Template‐directed Synthesismentioning

confidence: 99%

The Synthesis and Fabrication of One‐Dimensional Nanoscale Heterojunctions

Mieszawska

Jalilian

Суманасекера

et al. 2007

Small

281

193

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There are a variety of methods for synthesizing or fabricating one-dimensional (1D) nanostructures containing heterojunctions between different materials. Here we review recent developments in the synthesis and fabrication of heterojunctions formed between different materials within the same 1D nanostructure or between different 1D nanostructures composed of different materials. Structures containing 1D nanoscale heterojunctions exhibit interesting chemistry as well as size, shape, and material-dependent properties that are unique when compared to single-component materials. This leads to new or enhanced properties or multifunctionality useful for a variety of applications in electronics, photonics, catalysis, and sensing, for example. This review separates the methods into vapor-phase synthesis, solution-phase synthesis, template-based synthesis, and other approaches, such as lithography, electrospinning, and assembly. These methods are used to form a variety of heterojunctions, including segmented, core/shell, branched, or crossed, from different combinations of semiconductor, metal, carbon, and polymeric materials.

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“…However, although changes of resistance were measured under magnetic field, their sign and amplitude was seen to change over time. This was interpreted as resulting from trapped charges and therefore a barrier of insufficient structural stability, creating resonant states for tunneling (Sokolov et al 2003). Metal/oxide/metal structures are a priori easier to fabricate based on tubes and has already been demonstrated (Staňo 2017), however the core-shell contacting strategy may be more challenging.…”

Section: Magnetoresistancementioning

confidence: 99%

Magnetic Nanowires and Nanotubes

Staňo

Fruchart

2018

Handbook of Magnetic Materials

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We propose a review of the current knowledge about the synthesis, magnetic properties and applications of magnetic cylindrical nanowires and nanotubes. By nano we consider diameters reasonably smaller than a micrometer. At this scale, comparable to micromagnetic and transport length scales, novel properties appear. At the same time, this makes the underlying physics easier to understand due to the limiter number of degrees of freedom involved. The three-dimensional nature and the curvature of these objects contribute also to their specific properties, compared to patterns flat elements. While the topic of nanowires and later nanotubes started now decades ago, it is nevertheless flourishing, thanks to the progress of synthesis, theory and characterization tools. These give access to ever more complex and thus functional structures, and also shifting the focus from material-type measurements of large assemblies, to single-object investigations. We first provide an overview of common fabrication methods yielding nanowires, nanotubes and structures engineered in geometry (change in diameter, shape) or material (segments, core-shell structures), shape or core-shell. We then review their magnetic properties: global measurements, magnetization states and switching, single domain wall statics and dynamics, and spin waves. For each aspect, both theory and experiments are surveyed. We also mention standard characterization techniques useful for these. We finally mention emerging applications of magnetic nanowires and nanotubes, along with the foreseen perspectives in the topic.

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Resonant tunneling in magnetoresistive Ni/NiO/Co nanowire junctions

Cited by 10 publications

References 19 publications

Semiconductor Nanowires and Nanotubes

Semiconductor Nanowires and Nanotubes

The Synthesis and Fabrication of One‐Dimensional Nanoscale Heterojunctions

Magnetic Nanowires and Nanotubes

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