TY - GEN AU - Kragset,S AU - Smørgrav,E AU - Hove,J AU - Nogueira,F S AU - Sudbø,A TI - First-order phase transition in easy-plane quantum antiferromagnets SN - 0031-9007 PY - 2007///0706 N1 - Publication Type: Journal Article UR - https://doi.org/10.1103/PhysRevLett.97.247201 ER -