In bulk, the spin ice Dy2Ti2O7 has posed an enigma because – due to its slow dynamics – it is unclear whether and how the material will reach a zero entropy state at zero temperature. Here, the authors show that in thin films of Dy2Ti2O7a zero entropy state is induced at 0.4 K, plausibly by lattice strain.
- L. Bovo
- X. Moya
- S.T. Bramwell
