Volume 132, Number 2, October 2020
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||21 December 2020|
Memory and rejuvenation in a quasicrystal
1 Department of Materials Science and Engineering, Uppsala University - Box 35, 751 03 Uppsala, Sweden
2 Department of Chemistry- Ångström Laboratory, Uppsala University - 751 21 Uppsala, Sweden
Received: 31 July 2020
Accepted: 2 October 2020
The glassy features of a single crystal of the icosahedral quasicrystal i-GdCd7.5 were investigated by means of squid magnetometry. The temperature-dependent zero-field–cooled magnetization was recorded on re-heating from low temperatures after halts in the cooling. The results evidence dynamical features akin to those of archetypal spin glasses, such as aging, memory, and rejuvenation. The results are compared to those of model spin glasses with different spin dimensionality, suggesting a qualitative similarity to the behaviour of metallic RKKY “Heisenberg” spin glasses.
PACS: 75.10.Nr – Spin-glass and other random models / 61.44.Br – Quasicrystals
© 2020 The author(s)
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