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 |
|