Zobrazeno 1 - 10
of 219
pro vyhledávání: '"Yasushi Takemura"'
Publikováno v:
AIP Advances, Vol 13, Iss 2, Pp 025113-025113-5 (2023)
Implementing low ac excitation fields toward clinical magnetic particle imaging (MPI) system is critical to avoid magnetostimulation effects. However, low-field MPI scenario demands high sensitivity to probe the change in monotone magnetization respo
Externí odkaz:
https://doaj.org/article/c96b37cbce13442183ba1f7e8a7303ea
Publikováno v:
AIP Advances, Vol 13, Iss 2, Pp 025201-025201-6 (2023)
This study introduces a new method to drive high-precision magneto-impedance (MI) sensors with low power consumption using a Wiegand sensor to replace the oscillator circuits of the MI sensor. We studied the characteristics of an MI sensor driven by
Externí odkaz:
https://doaj.org/article/7a67d668763546a785102b913f422ee7
Publikováno v:
Materials, Vol 16, Iss 9, p 3559 (2023)
Wiegand wires are unique ferromagnetic materials that display rapid magnetization reversal and a large Barkhausen jump under an applied field. This stable reversal can be used to induce a periodic pulse voltage in a pickup coil wrapped around the Wie
Externí odkaz:
https://doaj.org/article/70c6052d02c447429b193295cffe4a8b
Publikováno v:
Materials, Vol 15, Iss 19, p 6951 (2022)
Various coercive force field components in Wiegand wire exhibit a significant magnetization reversal under an applied magnetic field. A fast magnetization reversal is accompanied by a large Barkhausen jump, which induces a pulse voltage in a pickup c
Externí odkaz:
https://doaj.org/article/66a48845683c414ea11351782ba7cb84
Publikováno v:
Materials, Vol 15, Iss 17, p 5936 (2022)
Wiegand wires exhibit a unique fast magnetization reversal feature in the soft layer that is accompanied by a large Barkhausen jump, which is also known as the Wiegand effect. However, the magnetic structure and interaction in Wiegand wires cannot be
Externí odkaz:
https://doaj.org/article/76b652dee8ba487b9f1579d0e5f8074d
Publikováno v:
AIP Advances, Vol 10, Iss 1, Pp 015007-015007-4 (2020)
The second harmonic signal of a magnetic nanoparticle in an oscillating magnetic field was enhanced, by applying a static bias field. To promote the second harmonic signal, the oscillating field was applied perpendicular to the signal detection and s
Externí odkaz:
https://doaj.org/article/41cfc95d2e6440ae9409b44a68b0817f
Publikováno v:
Materials, Vol 14, Iss 18, p 5417 (2021)
The Wiegand wire is known to exhibit a unique feature of fast magnetization reversal in the magnetically soft region accompanied by a large Barkhausen jump. We clarified a significant difference between the magnetization reversals at the surface and
Externí odkaz:
https://doaj.org/article/97ab1d975d224f2abc7e036a2d0e0ecb
Publikováno v:
Energies, Vol 14, Iss 17, p 5373 (2021)
This paper introduces a new method of electricity generation using a Wiegand sensor. The Wiegand sensor consists of a magnetic wire and a pickup coil wound around it. This sensor generates a pulse voltage of approximately 5 V and 20 µs width as an i
Externí odkaz:
https://doaj.org/article/e0b3b2319d7340c58e1171c607d6d7d8
Publikováno v:
Materials, Vol 14, Iss 14, p 3868 (2021)
The magnetic structure of Wiegand wires cannot be evaluated using conventional magnetization hysteresis curves. We analyzed the magnetization reversal of a Wiegand wire by measuring the first-order reversal curves (FORCs). A FeCoV Wiegand wire with a
Externí odkaz:
https://doaj.org/article/ba00558014754db5bc7e74841e992b7b
Autor:
Kizuku Nishimoto, Satoshi Ota, Guannan Shi, Ryoji Takeda, Suko Bagus Trisnanto, Tsutomu Yamada, Yasushi Takemura
Publikováno v:
AIP Advances, Vol 9, Iss 3, Pp 035347-035347-5 (2019)
Magnetic hyperthermia is a promising application of magnetic nanoparticles (MNPs) in cancer therapy. It is important to consider and optimize the parameters that affect heat dissipation, such as particle diameters, structures, and surface coatings. I
Externí odkaz:
https://doaj.org/article/53eba0ae5941431ab6d902504e52dbaa