B-NMR: A new method to investigate near surface depth-dependent spin structure in antiferromagnets
Comprehensive Exam
3:00 pm
Jorgensen Hall Room: 245
Michael Street
Advisor: Dr. Christian Binek
Nuclear Magnetic Resonance (NMR) spectroscopy is a useful experimental technique utilized for studying the structure and dynamics of atoms and molecules. One of the more popular examples of the application of NMR is the well-known Magnetic Resonance Imaging (MRI) used in the field of medicine. Although NMR can be extremely useful, it has certain limitations in the field of condensed matter physics - specifically studies done on magnetic materials. Another magnetic resonance technique that has several advantages over traditional NMR, is the more modern process called beta detected NMR (?-NMR). This presentation will summarize the basic understanding of nuclear magnetic resonance, the more involved ?-NMR spectroscopy, and how ?-NMR can be used to study the spin structure and near surface spin dynamics in antiferromagnets. Finally, two potential applications of ?-NMR on the magnetoelectric antiferromagnet Cr2O3 will be discussed. Here, I suggest to employ ?-NMR to investigation the antiferromagnetic and magnetoelectric properties of Cr2O3 in the thin film scaling limit and discuss how ?-NMR can be used to study recently predicted horizontal antiferromagnetic domains in Cr2O3-based exchange bias heterostructures.
Advisor: Dr. Christian Binek
Nuclear Magnetic Resonance (NMR) spectroscopy is a useful experimental technique utilized for studying the structure and dynamics of atoms and molecules. One of the more popular examples of the application of NMR is the well-known Magnetic Resonance Imaging (MRI) used in the field of medicine. Although NMR can be extremely useful, it has certain limitations in the field of condensed matter physics - specifically studies done on magnetic materials. Another magnetic resonance technique that has several advantages over traditional NMR, is the more modern process called beta detected NMR (?-NMR). This presentation will summarize the basic understanding of nuclear magnetic resonance, the more involved ?-NMR spectroscopy, and how ?-NMR can be used to study the spin structure and near surface spin dynamics in antiferromagnets. Finally, two potential applications of ?-NMR on the magnetoelectric antiferromagnet Cr2O3 will be discussed. Here, I suggest to employ ?-NMR to investigation the antiferromagnetic and magnetoelectric properties of Cr2O3 in the thin film scaling limit and discuss how ?-NMR can be used to study recently predicted horizontal antiferromagnetic domains in Cr2O3-based exchange bias heterostructures.