Magnetization and low temperature heat capacity of SmFeO3 single crystal

3He heat capacity of SmFeO3 single crystal was carried out from 0.4 K to 10 K. Magnetization was also checked from 2 K to 300 K. Magnetization fitting obtains a reasonable Θ = −2.16 K, while no signature of magnetic phase transition can be found down to 0.4 K from specific heat, showing |Θ/Tc| > 5.33. Considering the exchange interactions between Sm3+ and Fe3+, Sm3+ spins are frustrated. This gives a new form of spin frustration.