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Self-Assembled On-Chip-Integrated Giant Magneto-Impedance Sensorics.

Self-Assembled On-Chip-Integrated Giant Magneto-Impedance Sensorics.

Advanced materials (Deerfield Beach, Fla.) (2015-09-24)

Daniil Karnaushenko, Dmitriy D Karnaushenko, Denys Makarov, Stefan Baunack, Rudolf Schäfer, Oliver G Schmidt

초록

A novel method relying on strain engineering to realize arrays of on-chip-integrated giant magneto-impedance (GMI) sensors equipped with pick-up coils is put forth. The geometrical transformation of an initially planar layout into a tubular 3D architecture stabilizes favorable azimuthal magnetic domain patterns. This work creates a solid foundation for further development of CMOS compatible GMI sensorics for magnetoencephalography.

MATERIALS

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Sigma-Aldrich

Methanol, NMR reference standard

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Methanol, HPLC Plus, ≥99.9%, poly-coated bottles

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Diethylenetriaminepentaacetic acid, ≥99% (titration)

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Diethylenetriaminepentaacetic acid, ≥98% (titration)

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Propylene carbonate, anhydrous, 99.7%

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Propylene glycol monomethyl ether acetate, ReagentPlus^®, ≥99.5%

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2-Pentanone, ≥98%, FCC, FG

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Acrylic acid, anhydrous, contains 200 ppm MEHQ as inhibitor, 99%

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Methanol, anhydrous, 99.8%

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Methanol, ACS reagent, ≥99.8%

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Methanol, Absolute - Acetone free

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Methanol, ACS reagent, ≥99.8%

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Methanol, Laboratory Reagent, ≥99.6%

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Methanol, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.8% (GC)

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Methanol, puriss., meets analytical specification of Ph Eur, ≥99.7% (GC)

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2-Pentanone, reagent grade, ≥90%

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Methanol, BioReagent, ≥99.93%

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2-Pentanone, ultrapure grade, ≥99.5%

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Propylene carbonate, ReagentPlus^®, 99%

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Methanol, ACS spectrophotometric grade, ≥99.9%

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Methanol, ACS reagent, ≥99.8%

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Methanol-¹²C, 99.95 atom % ¹²C

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Methanol solution, NMR reference standard, 4% in methanol-d₄ (99.8 atom % D), NMR tube size 3 mm × 8 in.

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N,N-Dimethylacetamide, suitable for peptide synthesis, ≥99.8% (GC)

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N-Methyldiethanolamine, ≥99%

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N,N-Dimethylacetamide, ReagentPlus^®, ≥99%

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3-(Trimethoxysilyl)propyl methacrylate, 98%

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Toluene, anhydrous, 99.8%

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N,N-Dimethylacetamide, anhydrous, 99.8%

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N,N-Dimethylacetamide-d₉, 99 atom % D