Thermodynamic and magnetic properties of the layered triangular magnet NaNiO2
We report muon-spin rotation, heat capacity, magnetization, and ac magnetic susceptibility measurements of the magnetic properties of the layered spin-1/2 antiferromagnet NaNiO2. These show the onset of long-range magnetic order below TN=19.5 K. Rapid muon depolarization, persisting from TN to about...
| Auteurs principaux: | , , , , , , |
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| Format: | Journal article |
| Langue: | English |
| Publié: |
American Physical Society
2005
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| Sujets: |
| _version_ | 1826290401708867584 |
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| author | Baker, P Lancaster, T Blundell, S Brooks, M Hayes, W Prabhakaran, D Pratt, F |
| author_facet | Baker, P Lancaster, T Blundell, S Brooks, M Hayes, W Prabhakaran, D Pratt, F |
| author_sort | Baker, P |
| collection | OXFORD |
| description | We report muon-spin rotation, heat capacity, magnetization, and ac magnetic susceptibility measurements of the magnetic properties of the layered spin-1/2 antiferromagnet NaNiO2. These show the onset of long-range magnetic order below TN=19.5 K. Rapid muon depolarization, persisting from TN to about 5 K above TN, is consistent with the presence of short-range magnetic order. The temperature and frequency dependence of the ac susceptibility suggests that magnetic clusters persist above 25 K and that their volume fraction decreases with increasing temperature. A frequency dependent peak in the ac magnetic susceptibility at Tsf=3 K is observed, consistent with a slowing of spin fluctuations at this temperature. A partial magnetic phase diagram is deduced. |
| first_indexed | 2024-03-07T02:43:38Z |
| format | Journal article |
| id | oxford-uuid:ab47fc30-d3d4-48ee-8d7e-a541a26e65de |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:43:38Z |
| publishDate | 2005 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:ab47fc30-d3d4-48ee-8d7e-a541a26e65de2022-03-27T03:21:00ZThermodynamic and magnetic properties of the layered triangular magnet NaNiO2Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ab47fc30-d3d4-48ee-8d7e-a541a26e65dePhysicsCondensed Matter PhysicsEnglishOxford University Research Archive - ValetAmerican Physical Society2005Baker, PLancaster, TBlundell, SBrooks, MHayes, WPrabhakaran, DPratt, FWe report muon-spin rotation, heat capacity, magnetization, and ac magnetic susceptibility measurements of the magnetic properties of the layered spin-1/2 antiferromagnet NaNiO2. These show the onset of long-range magnetic order below TN=19.5 K. Rapid muon depolarization, persisting from TN to about 5 K above TN, is consistent with the presence of short-range magnetic order. The temperature and frequency dependence of the ac susceptibility suggests that magnetic clusters persist above 25 K and that their volume fraction decreases with increasing temperature. A frequency dependent peak in the ac magnetic susceptibility at Tsf=3 K is observed, consistent with a slowing of spin fluctuations at this temperature. A partial magnetic phase diagram is deduced. |
| spellingShingle | Physics Condensed Matter Physics Baker, P Lancaster, T Blundell, S Brooks, M Hayes, W Prabhakaran, D Pratt, F Thermodynamic and magnetic properties of the layered triangular magnet NaNiO2 |
| title | Thermodynamic and magnetic properties of the layered triangular magnet NaNiO2 |
| title_full | Thermodynamic and magnetic properties of the layered triangular magnet NaNiO2 |
| title_fullStr | Thermodynamic and magnetic properties of the layered triangular magnet NaNiO2 |
| title_full_unstemmed | Thermodynamic and magnetic properties of the layered triangular magnet NaNiO2 |
| title_short | Thermodynamic and magnetic properties of the layered triangular magnet NaNiO2 |
| title_sort | thermodynamic and magnetic properties of the layered triangular magnet nanio2 |
| topic | Physics Condensed Matter Physics |
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