TY - GEN AU - Block,Matthew S AU - Sheng,D N AU - Motrunich,Olexei I AU - Fisher,Matthew P A TI - Spin Bose-metal and valence bond solid phases in a spin-1/2 model with ring exchanges on a four-leg triangular ladder SN - 1079-7114 PY - 2011///0830 N1 - Publication Type: Journal Article UR - https://doi.org/10.1103/PhysRevLett.106.157202 ER -