Proposal for the detection of magnetic monopoles in spin ice via nanoscale magnetometry
We present a proposal for applying nanoscale magnetometry to the search for magnetic monopoles in the spin ice materials holmium and dysprosium titanate. Employing Monte Carlo simulations of the dipolar spin ice model, we find that when cooled to below 1.5K these materials exhibit a sufficiently low...
| Main Authors: | , , , , |
|---|---|
| Format: | Journal article |
| Published: |
American Physical Society
2018
|
| _version_ | 1797071035894333440 |
|---|---|
| author | Kirschner, F Flicker, F Yacoby, A Yao, N Blundell, S |
| author_facet | Kirschner, F Flicker, F Yacoby, A Yao, N Blundell, S |
| author_sort | Kirschner, F |
| collection | OXFORD |
| description | We present a proposal for applying nanoscale magnetometry to the search for magnetic monopoles in the spin ice materials holmium and dysprosium titanate. Employing Monte Carlo simulations of the dipolar spin ice model, we find that when cooled to below 1.5K these materials exhibit a sufficiently low monopole density to enable the direct observation of magnetic fields from individual monopoles. At these temperatures we demonstrate that noise spectroscopy can capture the intrinsic fluctuations associated with monopole dynamics, allowing one to isolate the qualitative e↵ects associated with both the Coulomb interaction between monopoles and the topological constraints implied by Dirac strings. We describe in detail three di↵erent nanoscale magnetometry platforms (muon spin rotation, nitrogen vacancy defects, and nanoSQUID arrays) that can be used to detect monopoles in these experiments, and analyze the advantages of each. |
| first_indexed | 2024-03-06T22:47:29Z |
| format | Journal article |
| id | oxford-uuid:5daafa0a-ddff-42ce-9d54-32b7ee8d1000 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T22:47:29Z |
| publishDate | 2018 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:5daafa0a-ddff-42ce-9d54-32b7ee8d10002022-03-26T17:35:53ZProposal for the detection of magnetic monopoles in spin ice via nanoscale magnetometryJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5daafa0a-ddff-42ce-9d54-32b7ee8d1000Symplectic Elements at OxfordAmerican Physical Society2018Kirschner, FFlicker, FYacoby, AYao, NBlundell, SWe present a proposal for applying nanoscale magnetometry to the search for magnetic monopoles in the spin ice materials holmium and dysprosium titanate. Employing Monte Carlo simulations of the dipolar spin ice model, we find that when cooled to below 1.5K these materials exhibit a sufficiently low monopole density to enable the direct observation of magnetic fields from individual monopoles. At these temperatures we demonstrate that noise spectroscopy can capture the intrinsic fluctuations associated with monopole dynamics, allowing one to isolate the qualitative e↵ects associated with both the Coulomb interaction between monopoles and the topological constraints implied by Dirac strings. We describe in detail three di↵erent nanoscale magnetometry platforms (muon spin rotation, nitrogen vacancy defects, and nanoSQUID arrays) that can be used to detect monopoles in these experiments, and analyze the advantages of each. |
| spellingShingle | Kirschner, F Flicker, F Yacoby, A Yao, N Blundell, S Proposal for the detection of magnetic monopoles in spin ice via nanoscale magnetometry |
| title | Proposal for the detection of magnetic monopoles in spin ice via nanoscale magnetometry |
| title_full | Proposal for the detection of magnetic monopoles in spin ice via nanoscale magnetometry |
| title_fullStr | Proposal for the detection of magnetic monopoles in spin ice via nanoscale magnetometry |
| title_full_unstemmed | Proposal for the detection of magnetic monopoles in spin ice via nanoscale magnetometry |
| title_short | Proposal for the detection of magnetic monopoles in spin ice via nanoscale magnetometry |
| title_sort | proposal for the detection of magnetic monopoles in spin ice via nanoscale magnetometry |
| work_keys_str_mv | AT kirschnerf proposalforthedetectionofmagneticmonopolesinspiniceviananoscalemagnetometry AT flickerf proposalforthedetectionofmagneticmonopolesinspiniceviananoscalemagnetometry AT yacobya proposalforthedetectionofmagneticmonopolesinspiniceviananoscalemagnetometry AT yaon proposalforthedetectionofmagneticmonopolesinspiniceviananoscalemagnetometry AT blundells proposalforthedetectionofmagneticmonopolesinspiniceviananoscalemagnetometry |