PRIN 2022 M4C2 1.1-Patterning of Antiferromagnets for THz operation

  • Venezia
  • Tempo determinato
  • Full time
  • 23 giorni fa
Offer DescriptionWith the end of Moore's law and the fast growth of Internet of Things applications, information technology needs to find new efficient mechanisms for information transmission and processing, enabling nanoscale integration and power saving. Spintronics is considered as one of the promising candidates for beyond CMOS computing. However, the GHz operation speed of ferromagnets and their difficulties in achieving high packing density due to their stray fields represent fundamental limitations in the path towards application. In this framework, antiferromagnets (AF), with their THz dynamics and absence of net magnetization, have been proposed for overcoming these limitations. However, the absence of straightforward ways to control the magnetic properties of Afs and the difficulties in probing their magnetic order has strongly limited the development of AF magnonics. In this context, the PATH The recent project proposes a new approach to control and study the static and dynamic magnetic properties of Afs development of thermally assisted scanning probe lithography (t-SPL) opened the extraordinary opportunity to control magnetic properties in AFs with unprecedented sub-10 nm resolution. In addition, the recent pioneering works on the use of THz radiation on magnetic materials, gave the possibility to access the dynamics of AFs and study coherent magnon modes. By using t-SPL in combination with THz spectroscopy, the PATH project aims to establish a new paradigm for exploiting AFs in spintronics, through the following ambitious objectives:a. To achieve nanoscale control of the static magnetic properties in AFs, by using the recently developed t-SPL technique to directly pattern with nanometer resolution spin textures and anisotropy landscapes.
b. To tune the dynamic properties and magnonic response of AFs by exploiting either tailored spin textures or magnonic crystals based on the modulation of the magnetic anisotropy or exchange interaction.
To achieve these challenging objectives, the team will work on three scientific workpackages:
1. Growth of AF films and characterization of their dynamic properties via THz pump - magneto-optical probe.
2. Patterning of spin textures in AFs via t-SPL exploiting nanoscale crystallization, thermal magneto-elastic effects and localized field cooling; development of a Scanning Thermal Gradient Microscopy at the nanoscale to characterize the patterns.
3. Stabilization of different domain walls and study their effect on the non-linear coupling of magnonic modes; realization of a periodic modulation of the magnetic anisotropy/exchange interaction to tune the magnonic dispersion of the AF; characterization of these system with THz pump-probe and imaging. By merging sub-10 nm resolution, AFs and THz characterization, this challenging project will open the path to the application of AFs for ultrafast, compact and energy efficient novel devices.
The fellowship will be involved in WPs:
WP1.2: characterization of the dynamics of antiferromagnetic films
WP3.2: Terahertz characterization of the patterned antiferromagnetsRequirementsResearch Field Physics Education Level PhD or equivalentResearch Field Engineering Education Level PhD or equivalentResearch Field Engineering » Other Education Level PhD or equivalentSkills/QualificationsTopics of the interview:
knowledge in solid state physics, in particular dynamics and out-of-equilibrium states;knowledge about ultrafast lasers, in the terahertz and visible range
Assesment of knowledge of the foreign language English by carrying out part of the interview in EnglishLanguages ENGLISH Level GoodLanguages ITALIAN Level GoodAdditional InformationBenefitsThe research fellowship amounts to Euro € 30.795,94 per year gross of the recipient, net of the expenses to be sustained by the Provider.Eligibility criteriaThe selection is made through evaluation of candidates' scientific and professional qualifications, curriculum vitae, scientific production, followed by an interview.The following qualifications are considered as evaluation criteria:
b. specialization diplomas and certificates of attendance of post-graduate specialization courses, obtained both in Italy and abroad, the carrying out of documented research activities at public and private entities with contracts, scholarships or assignments both in Italy and abroad;
c. at least one publication in the field of magnetism dynamics studied with terahertz radiation;
d. at least one publication on antiferromagnetic materialsSelection processThe interview will be on 02/07/2024 at 09:30 a.m.The list of candidates admitted to the interview or any postponements will be made known on 28 th June 2024 through a notice that will be published on the website of this University and on the web pages required by current legislation.Website for additional job detailsWork Location(s)Number of offers available 1 Company/Institute UNIVERSITA' CA' FOSCARI VENEZIA Country Italy State/Province Public research City VENEZIA Postal Code 30123 Street DORSO DURO 3246Where to apply WebsiteContact State/Provinceno CityVENEZIA WebsiteStreetDORSO DURO 3246 Postal Code30123 E-Mailricerca.dsmn@unive.it Phone0412349173STATUS: EXPIRED

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