dc.contributor.author |
Iakovleva M. |
|
dc.contributor.author |
Vavilova E. |
|
dc.contributor.author |
Grafe H. |
|
dc.contributor.author |
Zimmermann S. |
|
dc.contributor.author |
Alfonsov A. |
|
dc.contributor.author |
Luetkens H. |
|
dc.contributor.author |
Klauss H. |
|
dc.contributor.author |
Maljuk A. |
|
dc.contributor.author |
Wurmehl S. |
|
dc.contributor.author |
Büchner B. |
|
dc.contributor.author |
Kataev V. |
|
dc.date.accessioned |
2018-09-18T20:21:08Z |
|
dc.date.available |
2018-09-18T20:21:08Z |
|
dc.date.issued |
2015 |
|
dc.identifier.issn |
1098-0121 |
|
dc.identifier.uri |
https://dspace.kpfu.ru/xmlui/handle/net/138993 |
|
dc.description.abstract |
© 2015 American Physical Society. We report a combined experimental study of magnetic properties of a single crystal of the frustrated diamond lattice antiferromagnet CoAl<inf>2</inf>O<inf>4</inf> with Co<sup>2+</sup> electron spin resonance, <sup>27</sup>Al nuclear magnetic resonance, and muon spin rotation/relaxation techniques. With our local probes, we show that the frustration of spin interactions and the Co/Al site disorder strongly affect the spin dynamics. The experimental results evidence inhomogeneous and slow magnetic fluctuations and the occurrence of short-range electron spin correlations far above a characteristic temperature T∗=8 K at which the spin system turns into in a quasistatic state. Our data indicate that this spin order is likely short range and unconventional with spin fluctuations persistent even at T 蠐 T∗. The results of three spectroscopy techniques highlight a nontrivial role of structural disorder for the magnetism of a frustrated diamond spin lattice at the proximity to the critical point. |
|
dc.relation.ispartofseries |
Physical Review B - Condensed Matter and Materials Physics |
|
dc.title |
Ground state and low-energy magnetic dynamics in the frustrated magnet CoAl<inf>2</inf>O<inf>4</inf> as revealed by local spin probes |
|
dc.type |
Article |
|
dc.relation.ispartofseries-issue |
14 |
|
dc.relation.ispartofseries-volume |
91 |
|
dc.collection |
Публикации сотрудников КФУ |
|
dc.source.id |
SCOPUS10980121-2015-91-14-SID84928902764 |
|