TY - GEN AU - del Barco,E AU - Kent,A D AU - Yang,E C AU - Hendrickson,D N TI - Quantum superposition of high spin states in the single molecule magnet Ni4 SN - 0031-9007 PY - 2004///1207 N1 - Publication Type: Journal Article UR - https://doi.org/10.1103/PhysRevLett.93.157202 ER -