TY - JOUR
T1 - Time-reversal symmetry breaking by a (d+id) density-wave state in underdoped cuprate superconductors
AU - Tewari, Sumanta
AU - Zhang, Chuanwei
AU - Yakovenko, Victor M.
AU - Das Sarma, S.
PY - 2008/5/30
Y1 - 2008/5/30
N2 - It was proposed that the idx2-y2 density-wave state (DDW) may be responsible for the pseudogap behavior in the underdoped cuprates. Here we show that the admixture of a small dxy component to the DDW state breaks the symmetry between the counterpropagating orbital currents of the DDW state and, thus, violates the macroscopic time-reversal symmetry. This symmetry breaking results in a nonzero polar Kerr effect, which has recently been observed in the pseudogap phase.
AB - It was proposed that the idx2-y2 density-wave state (DDW) may be responsible for the pseudogap behavior in the underdoped cuprates. Here we show that the admixture of a small dxy component to the DDW state breaks the symmetry between the counterpropagating orbital currents of the DDW state and, thus, violates the macroscopic time-reversal symmetry. This symmetry breaking results in a nonzero polar Kerr effect, which has recently been observed in the pseudogap phase.
UR - https://www.scopus.com/pages/publications/44649174617
U2 - 10.1103/PhysRevLett.100.217004
DO - 10.1103/PhysRevLett.100.217004
M3 - Article
AN - SCOPUS:44649174617
SN - 0031-9007
VL - 100
JO - Physical Review Letters
JF - Physical Review Letters
IS - 21
M1 - 217004
ER -