Spin glasses

https://en.wikipedia.org/wiki/Spin_glass

theory

1990 SPIN GLASSES AND RELATED PROBLEMS Dosenko-Feigelman-Ioffe

2018 Spin glasses : experimental signatures and salient outcomes

experiments

2015 Spin glasses: redux: an updated experimental/materials survey J A Mydosh

https://www.researchgate.net/publication/231151154_Low-temperature_excitations_in_spin_glasses_Evidence_for_a_T32_behaviour

1985 - TOPICAL REVIEW SOME EXPERIMENTAL ASPECTS OF SPIN GLASSES: A REVIEW C.Y. HUANG