TY - GEN AU - Creedon,Daniel L AU - Benmessaï,Karim AU - Bowen,Warwick P AU - Tobar,Michael E TI - Four-wave mixing from Fe3+ spins in sapphire SN - 1079-7114 PY - 2012///0927 N1 - Publication Type: Journal Article UR - https://doi.org/10.1103/PhysRevLett.108.093902 ER -