# name
Magnetic transition in highly frustrated SrCr8Ga4O19: The archetypal kagomé system

# metadata.dc.description.abstract[].value
Both dc and ac magnetic susceptibility have been carefully measured and analyzed in order to determine the features of the low-temperature magnetic state of the highly frustrated 
SrCr
8
Ga
4
O
19
 compound. The scaling analysis of the nonlinear part of the dc magnetic susceptibility gives clues that indicate that the nature of the magnetic state below 
T
f
 does not correspond to a conventional spin glass. This idea is further confirmed by the study of the dynamic scaling that also differs from what is expected for a conventional spin glass. A progressive change towards a more conventional magnetic ordering below 
T
f
 is observed by substituting Ga atoms by Fe atoms in the compound 
SrCr
8
Ga
4
−
2
x
Fe
x
O
19
. For x=1.5, both the scaling analysis of the nonlinear part of the dc magnetic susceptibility and the dynamic scaling seem to indicate that a true spin-glass phase transition does exist at 
T
f
. This change in the magnetic behavior is attributed to the fact that the presence of a magnetic atom in the 4
f
VI
 sites as a first neighbor of the Cr atoms, located in the 12k sites, will impose a ‘‘local preferential direction’’ for the magnetic moments removing somehow the strong intrinsic magnetic frustration of the kagomé lattice.

# metadata.dc.relation.isformatof[].value
Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.50.15779

# metadata.dc.source[].value
Articles publicats en revistes (Física de la Matèria Condensada)

# metadata.dc.title[].value
Magnetic transition in highly frustrated SrCr8Ga4O19: The archetypal kagomé system