In-situ Growth of Ultrathin Magnetic Films and Tuning the Magnetic Properties by Ion-sculpting

التفاصيل البيبلوغرافية
العنوان: In-situ Growth of Ultrathin Magnetic Films and Tuning the Magnetic Properties by Ion-sculpting
المؤلفون: Bera, Anup Kumar, Kumar, Dileep
سنة النشر: 2023
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Materials Science
الوصف: Magnetic anisotropy is a key parameter of magnetic materials as it decides the response in the presence of an external magnetic field. The artificial tailoring of magnetic anisotropy by manipulating surface and interface morphology is attracting widespread interest for its application in spintronic and magnetic memory devices. In this perspective, the primary focus of this thesis has been inducing and tailoring magnetic anisotropy in thin film-based systems via the engineering of structure and surface/interfacial morphology. For this purpose, instead of multistep, expensive lithographic techniques, we have utilized low-energy IBE as a handy, cost-effective, and useful tool for producing magnetic nanostructures and tailoring its surface structure, morphology and magnetic anisotropy. Furthermore, we have also proposed various new and unconventional methods (oblique angle deposition on the rippled substrate, sequential deposition-erosion) for enhancement of UMA and proved its effectiveness via experiments. We have performed most of the present thesis work in-situ utilizing a UHV chamber to get genuine characteristics and understand their interdependencies. However, advanced synchrotron-based techniques such as GISAXS and NFS were also utilized to complement the in-situ observations.
Comment: Thesis
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2302.11941
رقم الأكسشن: edsarx.2302.11941
قاعدة البيانات: arXiv