Effect of heating rates on superconducting properties of pure MgB2, carbon nanotube- and nano-SiC-doped in situ MgB2/Fe wires
The influence of heating rates and annealing temperatures on the transition temperatures (Tc) and critical current densities (Jc) of pure MgB2, carbon nanotube- and nano-SiC-doped in situ monofilament...
The influence of heating rates and annealing temperatures on the transition temperatures (Tc) and critical current densities (Jc) of pure MgB2, carbon nanotube- and nano-SiC-doped in situ monofilament...
Tuning the ferromagnetic properties of hydrogenated GaMnAs
Hydrogenation and posthydrogenation annealings have been used as a very efficient tool to tune the hole density over a wide range, at fixed magnetic moment concentration, in thin GaMnAs layers. Reduct...
Hydrogenation and posthydrogenation annealings have been used as a very efficient tool to tune the hole density over a wide range, at fixed magnetic moment concentration, in thin GaMnAs layers. Reduct...
Technique to measure sub-microsecond magnetic field pulses using magnetic (CoPt) thin films
Appl. Phys. Lett. 87, 182505 (2005); doi:10.1063/1.2126109
Published 27 October 2005
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We introduce a technique to measure the maximum magnetic field of a submicrosecond duration pulse using magnetic CoPt thin films. In the present experiment, this technique yields a lower limit for the field intensity and reveals the sense of that peak field. The time-varying magnetic field was generated by an exploding wire array plasma called an X pinch. Using a Quantum Design Superconducting Quantum Interference Device magnetometer, two thin films were initialized with remnant magnetization along a specific direction. The two films were then placed near an X-pinch plasma column with magnetizations in opposite directions. The current driven through the X pinch induced a change in magnetization in the films, which implied a lower bound of 17 kOe for the magnitude of the maximum magnetic field to which the film was exposed.
©2005 American Institute of Physics
| History: | Received 18 May 2005; accepted 12 September 2005; published 27 October 2005 |
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http://link.aip.org/link/?APPLAB/87/182505/1 |
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