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dc.contributor.author | Iakovleva M. | |
dc.contributor.author | Vavilova E. | |
dc.contributor.author | Grafe H. | |
dc.contributor.author | Maljuk A. | |
dc.contributor.author | Wurmehl S. | |
dc.contributor.author | Büchner B. | |
dc.contributor.author | Kataev V. | |
dc.date.accessioned | 2018-09-19T20:41:00Z | |
dc.date.available | 2018-09-19T20:41:00Z | |
dc.date.issued | 2016 | |
dc.identifier.issn | 0937-9347 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/143130 | |
dc.description.abstract | © 2016 Springer-Verlag WienWe report an experimental study of the low-temperature dynamics of electron spin fluctuations in the magnetically frustrated spinel CoAl2O4 as revealed by 27Al nuclear magnetic relaxation measurements in a magnetic field of 7.7 T in the temperature range 4 < T < 240 K. With this local probe technique, we show that the dynamics of the correlated Co spins strongly depends on the frustration of spin interactions and on Co/Al site disorder. The anisotropy of the temperature dependences of the spin–lattice (T1−1) and spin–spin (T2−1) 27Al nuclear relaxation rates reveals a coexistence of the short-range Néel order below a characteristic temperature T* = 8 K and slow non-commensurate magnetic correlations below and above T*, in agreement with the results of neutron diffraction experiments and our previous NMR spectroscopy data. | |
dc.relation.ispartofseries | Applied Magnetic Resonance | |
dc.title | Spin Dynamics and Ground State of the Frustrated Diamond Lattice Magnet CoAl<inf>2</inf>O<inf>4</inf> as seen by <sup>27</sup>Al NMR | |
dc.type | Article in Press | |
dc.collection | Публикации сотрудников КФУ | |
dc.relation.startpage | 1 | |
dc.source.id | SCOPUS09379347-2016-SID84964058332 |