TY - JOUR
T1 - Quantum stabilization of the 1/3-magnetization plateau in Cs2CuBr4
AU - Alicea, Jason
AU - Chubukov, Andrey V.
AU - Starykh, Oleg A.
PY - 2009/3/30
Y1 - 2009/3/30
N2 - We consider the phase diagram of a spatially anisotropic 2D triangular antiferromagnet in a magnetic field. Classically, the ground state is umbrellalike for all fields, but we show that the quantum phase diagram is much richer and contains a 1/3-magnetization plateau, two commensurate planar states, two incommensurate chiral umbrella phases, and, possibly, a spin density wave state separating the two chiral phases. Our analysis sheds light on several recent experimental findings for Cs2CuBr4.
AB - We consider the phase diagram of a spatially anisotropic 2D triangular antiferromagnet in a magnetic field. Classically, the ground state is umbrellalike for all fields, but we show that the quantum phase diagram is much richer and contains a 1/3-magnetization plateau, two commensurate planar states, two incommensurate chiral umbrella phases, and, possibly, a spin density wave state separating the two chiral phases. Our analysis sheds light on several recent experimental findings for Cs2CuBr4.
UR - http://www.scopus.com/inward/record.url?scp=63649124989&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=63649124989&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.102.137201
DO - 10.1103/PhysRevLett.102.137201
M3 - Article
AN - SCOPUS:63649124989
SN - 0031-9007
VL - 102
JO - Physical review letters
JF - Physical review letters
IS - 13
M1 - 137201
ER -