The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
At room temperature, oxide dispersion strengthened (ODS)-Fe (Fe-2%Al2O3) and pure Fe were implanted with 140-keV helium ions by doses up to 1e+15, 5e+15, and 1e+16/cm2. Vacancy-type defects induced by the implantation were investigated with positron-annihilation spectroscopy (PAS). Defect profiles of the S-parameter derived from PAS as a function of positron incident energy up to 20 KeV were analyzed...
Vacancy-type defects in Fe-2%Al2O3 (ODS-Fe) and pure Fe produced by helium ion irradiation at room temperature were investigated using positron beam Doppler broadening energy spectra (DBES). Defect profiles of the S parameter derived from DBES as a function of positron incident energy up to 20 KeV were analyzed. The S parameter values of the damaged layer for the ODS-Fe are smaller than those of pure...
We present the design and simulation of information processing hardware that is comprised of single domain, Co/Pt magnets (i.e., out-of-plane nanomagnet logic — or oNML). We first describe the design and evaluation of oNML hardware that can identify instances of a preprogrammed bit sequence in streaming data. Systolic arrays (that process information using Boolean logic gates) are employed as a system-level...
Most NML research has studied small magnet ensembles for interconnect or isolated gates. We discuss how NML might be used to process information, as well as suitable system architecture-to-device architecture mappings. A case study for pattern matching hardware is presented.
Focused ion beam irradiation on ferromagnetic Co/Pt films permits controlled modification of the coercivity. This is demonstrated experimentally and mapped to micro-magnetic simulations. Temperature measurements prove the thermal stability of films and nanodots in an application relevant temperature range. For the first time, Extraordinary Hall-Effect measurements are performed at a single-domain...
This paper presents circuit designs to be used as `public-key' physical uncloneable functions. We will introduce two specially designed circuits: `skew' memories and massively parallel analog processor arrays (CNNs). We show that such circuits-which are possible to simulate but computationally outperform any feasible digital and hardware-assisted emulation-can be used to remotely and securely identify...
The paper introduces the developed switched reluctance variable speed linear generator system. The developed prototype is a type of three-phase switched reluctance linear generator system, which is made up of the three-phase 6/4 structure switched reluctance linear generator, the three-phase asymmetric bridge exciting power converter and the controller. The hardware of the prototype was introduced...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.