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http://hdl.handle.net/11375/25060
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DC Field | Value | Language |
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dc.contributor.advisor | Imai, Takashi | - |
dc.contributor.author | Wang, Jiaming | - |
dc.date.accessioned | 2019-11-26T18:18:08Z | - |
dc.date.available | 2019-11-26T18:18:08Z | - |
dc.date.issued | 2019 | - |
dc.identifier.uri | http://hdl.handle.net/11375/25060 | - |
dc.description.abstract | The search for quantum spin liquids (QSLs) introduces some of the most challenging and interesting problems in contemporary physics. The recently discovered iridate Cu2IrO3,which contains a honeycomb lattice of Ir4+ions with effective spin 1/2 coupled by frustrated Ising interactions, presents itself as a promising candidate for a Kitaev QSL. In this study, we use nuclear magnetic resonance (NMR), a spectroscopic technique based on the energy levels of nuclear spin states, to probe the intrinsic spin excitations of Cu2IrO3. By measuring the NMR frequency shift of 63Cu from 4.2 K to 298 K,we demonstrate that its spin susceptibility χ spin behaves nearly identically to its parent compound Na2IrO3, without showing evidence of magnetic ordering at low temperatures. We showed that the upturn of bulk susceptibility χ below T=50 K is due to the contribution of defect spins. The hyperfine coupling constant Ahf between Cu and Ir4+was also estimated by comparing the Knight shift 63K to χ | en_US |
dc.language.iso | en | en_US |
dc.subject | Spin Liquid | en_US |
dc.subject | Kitaev | en_US |
dc.subject | Iridate | en_US |
dc.subject | NMR | en_US |
dc.title | High Field NMR Investigation of Kitaev Spin Liquid Candidate Cu2IrO3 | en_US |
dc.type | Thesis | en_US |
dc.contributor.department | Physics and Astronomy | en_US |
dc.description.degreetype | Thesis | en_US |
dc.description.degree | Master of Science (MSc) | en_US |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Wang_Jiaming_2019November_Masters.pdf | 2.01 MB | Adobe PDF | View/Open |
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