Magnetostrictive Fe–Ga/Cu Nanowires Array With GMR Sensor for Sensing Applied Pressure

Park, Jung Jin; Reddy, K. Sai Madhukar; Stadler, Bethanie J. H.; Flatau, Alison B.

doi:10.1109/jsen.2017.2657789

Cited by 15 publications

(14 citation statements)

References 43 publications

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“…Moving away or closer the magnetic instrument to the desired sensor (i.e., desired vegetable) will be detected by detected circuit [198]. Recently, Park et al [212] developed a pressure sensor based on Fe 80 Ga 20 /Cu NW. A GMR sensor was made by depositing Co (1.5 nm) and Cu (2.0 nm) multilayers by e-beam evaporate on silicon grid, its corresponding GMR response was 1.2 mΩ/Oe (calculated sensitivity).…”

Section: Properties and Application Of Multi-segmented Nwsmentioning

confidence: 99%

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Multi-Segmented Nanowires: A High Tech Bright Future

Wang

Mukhtar

et al. 2019

Materials

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In the last couple of decades, there has been a lot of progress in the synthesis methods of nano-structural materials, but still the field has a large number of puzzles to solve. Metal nanowires (NWs) and their alloys represent a sub category of the 1-D nano-materials and there is a large effort to study the microstructural, physical and chemical properties to use them for further industrial applications. Due to technical limitations of single component NWs, the hetero-structured materials gained attention recently. Among them, multi-segmented NWs are more diverse in applications, consisting of two or more segments that can perform multiple function at a time, which confer their unique properties. Recent advancement in characterization techniques has opened up new opportunities for understanding the physical properties of multi-segmented structures of 1-D nanomaterials. Since the multi-segmented NWs needs a reliable response from an external filed, numerous studies have been done on the synthesis of multi-segmented NWs to precisely control the physical properties of multi-segmented NWs. This paper highlights the electrochemical synthesis and physical properties of multi-segmented NWs, with a focus on the mechanical and magnetic properties by explaining the shape, microstructure, and composition of NWs.

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Section: Properties and Application Of Multi-segmented Nwsmentioning

confidence: 99%

“…When the Fe 80 Ga 20 /Cu NWs were deformed against the GMR sensor, the resistance of the GMR circuit will change as R 3 . A micro-simulation study shows that for the compression of 1 µm and 100 nm the sensing sensitivity of NWs were ~1 mΩ/kPa and ~4 mΩ/kPa [212].…”

Section: Properties and Application Of Multi-segmented Nwsmentioning

confidence: 99%

Multi-Segmented Nanowires: A High Tech Bright Future

Wang

Mukhtar

et al. 2019

Materials

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“…Finally, Park used in Galfenol/Cu segmented nanowires to demonstrate that they could be used as pressure sensors, where pressure was applied to strain the nanowires. This induced a magnetization change in the nanowires that was detected with giant magnetoresistive (GMR) film sensors below the nanowire array [33]. …”

Section: Galfenol Nanowires and Propertiesmentioning

confidence: 99%

Galfenol Thin Films and Nanowires

Stadler

Reddy

Basantkumar

et al. 2018

Sensors

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Galfenol (Fe1−xGax, 10 < x < 40) may be the only smart material that can be made by electrochemical deposition which enables thick film and nanowire structures. This article reviews the deposition, characterization, and applications of Galfenol thin films and nanowires. Galfenol films have been made by sputter deposition as well as by electrochemical deposition, which can be difficult due to the insolubility of gallium. However, a stable process has been developed, using citrate complexing, a rotating disk electrode, Cu seed layers, and pulsed deposition. Galfenol thin films and nanowires have been characterized for crystal structures and magnetostriction both by our group and by collaborators. Films and nanowires have been shown to be largely polycrystalline, with magnetostrictions that are on the same order of magnitude as textured bulk Galfenol. Electrodeposited Galfenol films were made with epitaxial texture on GaAs. Galfenol nanowires have been made by electrodeposition into anodic aluminum oxide templates using similar parameters defined for films. Segmented nanowires of Galfenol/Cu have been made to provide engineered magnetic properties. Applications of Galfenol and other magnetic nanowires include microfluidic sensors, magnetic separation, cellular radio-frequency identification (RFID) tags, magnetic resonance imaging (MRI) contrast, and hyperthermia.

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“…The capability of converting magnetic signals to electrical signals has led to the successful implementation of sensors based on the MR effect. To date, MR sensors have been widely employed in various applications such as hard disk drives [1], magnetic random access memory (MRAM) [2], pressure measurement [3,4], current sensing [5,6], position sensing [7][8][9], and biosensing [10][11][12] ( Figure 1). The first application of MR sensors to detect biological signals was proposed about 20 years ago by Baselt et al [13], and they have attracted great attention since then [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Advances in Magnetoresistive Biosensors

Saha

et al. 2019

Micromachines

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Magnetoresistance (MR) based biosensors are considered promising candidates for the detection of magnetic nanoparticles (MNPs) as biomarkers and the biomagnetic fields. MR biosensors have been widely used in the detection of proteins, DNAs, as well as the mapping of cardiovascular and brain signals. In this review, we firstly introduce three different MR devices from the fundamental perspectives, followed by the fabrication and surface modification of the MR sensors. The sensitivity of the MR sensors can be improved by optimizing the sensing geometry, engineering the magnetic bioassays on the sensor surface, and integrating the sensors with magnetic flux concentrators and microfluidic channels. Different kinds of MR-based bioassays are also introduced. Subsequently, the research on MR biosensors for the detection of protein biomarkers and genotyping is reviewed. As a more recent application, brain mapping based on MR sensors is summarized in a separate section with the discussion of both the potential benefits and challenges in this new field. Finally, the integration of MR biosensors with flexible substrates is reviewed, with the emphasis on the fabrication techniques to obtain highly shapeable devices while maintaining comparable performance to their rigid counterparts.

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Magnetostrictive Fe–Ga/Cu Nanowires Array With GMR Sensor for Sensing Applied Pressure

Cited by 15 publications

References 43 publications

Multi-Segmented Nanowires: A High Tech Bright Future

Multi-Segmented Nanowires: A High Tech Bright Future

Galfenol Thin Films and Nanowires

Advances in Magnetoresistive Biosensors

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