Frequency-tunable nickel-titanium substrates for magnetoelectric sensors
We show the use of nickel-titanium (NiTi) metal thin films as functional substrates of magnetoelectric composites allowing the composites’ mechanical resonance to be tuned towards the frequency range of interest by employing the gradual change of the Young’s modulus during the martensite-austenite p...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2018-12-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.5066076 |
| _version_ | 1828301513014902784 |
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| author | Volker Röbisch André Piorra Rodrigo Lima de Miranda Eckhard Quandt Dirk Meyners |
| author_facet | Volker Röbisch André Piorra Rodrigo Lima de Miranda Eckhard Quandt Dirk Meyners |
| author_sort | Volker Röbisch |
| collection | DOAJ |
| description | We show the use of nickel-titanium (NiTi) metal thin films as functional substrates of magnetoelectric composites allowing the composites’ mechanical resonance to be tuned towards the frequency range of interest by employing the gradual change of the Young’s modulus during the martensite-austenite phase transformation. Such composites are successfully fabricated by layering functional piezoelectric aluminum nitride and highly magnetostrictive FeCoSiB on sputtered NiTi-films. Subsequent characterizations reveal high magnetoelectric response. Applied as magnetic field sensors a high sensitivity (with a magnetoelectric coefficient αME=290 V/cm Oe) and low limit of detection of approximately 110 pT/Hz1/2 is observed for AC magnetic fields matching the mechanical resonance frequency. This mechanical resonance of the sensor can be altered with a Δf of 12% in the temperature interval between room temperature and 130 °C. This offers the possibility to adjust the sensor’s mechanical resonance frequency featuring the highest sensitivity to the magnetic field frequency to be measured. |
| first_indexed | 2024-04-13T13:23:47Z |
| format | Article |
| id | doaj.art-598088fbdad64e62917d7ba73f6d0f43 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-13T13:23:47Z |
| publishDate | 2018-12-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-598088fbdad64e62917d7ba73f6d0f432022-12-22T02:45:14ZengAIP Publishing LLCAIP Advances2158-32262018-12-01812125320125320-710.1063/1.5066076057812ADVFrequency-tunable nickel-titanium substrates for magnetoelectric sensorsVolker Röbisch0André Piorra1Rodrigo Lima de Miranda2Eckhard Quandt3Dirk Meyners4Institute for Materials Science, Inorganic Functional Materials, Kiel University, 24143 Kiel, GermanyInstitute for Materials Science, Service Center, Kiel University, 24143 Kiel, GermanyAcquandas GmbH, 24143 Kiel, GermanyInstitute for Materials Science, Inorganic Functional Materials, Kiel University, 24143 Kiel, GermanyInstitute for Materials Science, Inorganic Functional Materials, Kiel University, 24143 Kiel, GermanyWe show the use of nickel-titanium (NiTi) metal thin films as functional substrates of magnetoelectric composites allowing the composites’ mechanical resonance to be tuned towards the frequency range of interest by employing the gradual change of the Young’s modulus during the martensite-austenite phase transformation. Such composites are successfully fabricated by layering functional piezoelectric aluminum nitride and highly magnetostrictive FeCoSiB on sputtered NiTi-films. Subsequent characterizations reveal high magnetoelectric response. Applied as magnetic field sensors a high sensitivity (with a magnetoelectric coefficient αME=290 V/cm Oe) and low limit of detection of approximately 110 pT/Hz1/2 is observed for AC magnetic fields matching the mechanical resonance frequency. This mechanical resonance of the sensor can be altered with a Δf of 12% in the temperature interval between room temperature and 130 °C. This offers the possibility to adjust the sensor’s mechanical resonance frequency featuring the highest sensitivity to the magnetic field frequency to be measured.http://dx.doi.org/10.1063/1.5066076 |
| spellingShingle | Volker Röbisch André Piorra Rodrigo Lima de Miranda Eckhard Quandt Dirk Meyners Frequency-tunable nickel-titanium substrates for magnetoelectric sensors AIP Advances |
| title | Frequency-tunable nickel-titanium substrates for magnetoelectric sensors |
| title_full | Frequency-tunable nickel-titanium substrates for magnetoelectric sensors |
| title_fullStr | Frequency-tunable nickel-titanium substrates for magnetoelectric sensors |
| title_full_unstemmed | Frequency-tunable nickel-titanium substrates for magnetoelectric sensors |
| title_short | Frequency-tunable nickel-titanium substrates for magnetoelectric sensors |
| title_sort | frequency tunable nickel titanium substrates for magnetoelectric sensors |
| url | http://dx.doi.org/10.1063/1.5066076 |
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