BEGIN:VCALENDAR VERSION:2.0 PRODID:-//linuxsoftware.nz//NONSGML Joyous v1.4//EN BEGIN:VEVENT SUMMARY:Spin Textures and Spin Waves DTSTART:20230531T160000Z DTEND:20230531T170000Z DTSTAMP:20260406T152254Z UID:4c1fb606-435b-4851-99c8-fe1ec819a6a3 SEQUENCE:4 CREATED:20230226T225208Z DESCRIPTION:Title: Spin Textures and Spin WavesSpeaker: Prof. Daniela Pett i (Politecnico di Milano)Abstract:Spin textures are nonuniform configurati ons in the arrangement of spins in magnetic materials\, which are raising interest as active components in data storage and signal processing. Durin g this lecture\, different spin textures\, such as domain walls\, vortices and skyrmions\, will be introduced and their main applications will be di scussed. We will also examine different lithographic approaches to stabili ze spin textures\; indeed spin textures are stable\, have a high degree of tunability and have nanoscale dimensions. In the second part of the lectu re\, spin waves will be introduced. They are propagating perturbation in t he spin lattice of ordered magnetic materials. In analogy to photonics\, m agnonics uses spin waves to carry and process information at the GHz-THz f requency\, but differently\, the typical wavelength of spin waves at these frequencies is in the nanometer range\, while the wavelength of electroma gnetic radiation is order of magnitude longer. Currents of magnons\, the e quivalent quanta of spin waves\, can carry energy (frequency) and angular momentum (spin) without motion of charges\, which makes them promising for beyond CMOS computing\, due to the absence of Joule heating. We will fina lly explore the interaction of the spin textures with the spin waves\, foc using on how spin textures can be used to manipulate spin waves at the nan oscale. Some example will be discussed. LAST-MODIFIED:20230226T225348Z LOCATION:PA1\, Mathematics URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/spin-textures-and-spin-wav es/ X-ALT-DESC;FMTTYPE=text/html:

Title: Spin Textures and Spin Waves

Speaker: Prof. Daniela Petti (Politecnico di Milano)

Abs tract:

Spin textures are nonuniform confi gurations in the arrangement of spins in magnetic materials\, which are ra ising interest as active components in data storage and signal processing. During this lecture\, different spin textures\, such as domain walls\, vo rtices and skyrmions\, will be introduced and their main applications will be discussed. We will also examine different lithographic approaches to s tabilize spin textures\; indeed spin textures are stable\, have a high deg ree of tunability and have nanoscale dimensions. In the second part of the lecture\, spin waves will be introduced. They are propagating perturbatio n in the spin lattice of ordered magnetic materials. In analogy to photoni cs\, magnonics uses spin waves to carry and process information at the GHz -THz frequency\, but differently\, the typical wavelength of spin waves at these frequencies is in the nanometer range\, while the wavelength of ele ctromagnetic radiation is order of magnitude longer. Currents of magnons\, the equivalent quanta of spin waves\, can carry energy (frequency) and an gular momentum (spin) without motion of charges\, which makes them promisi ng for beyond CMOS computing\, due to the absence of Joule heating. We wil l finally explore the interaction of the spin textures with the spin waves \, focusing on how spin textures can be used to manipulate spin waves at t he nanoscale. Some example will be discussed.

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