TY - JOUR
T1 - Tunneling into ferromagnetic quantum hall states
T2 - Observation of a spin bottleneck
AU - Chan, H. B.
AU - Ashoori, R. C.
AU - Pfeiffer, L. N.
AU - West, K. W.
PY - 1999/10/18
Y1 - 1999/10/18
N2 - We explore the characteristics of equilibrium tunneling of electrons from a 3D electrode into a high mobility 2D electron system. For most noninteger filling factors, we find that tunneling can be characterized by a single, well-defined tunneling rate. However, for spin-polarized quantum Hall states (ν= 1,3, and 1/3) tunneling occurs at two distinct rates that differ by up to 2 orders of magnitude. The dependence of the two rates on temperature and tunnel barrier thickness suggests that slow in-plane spin relaxation creates a bottleneck for tunneling of electrons. 1999
AB - We explore the characteristics of equilibrium tunneling of electrons from a 3D electrode into a high mobility 2D electron system. For most noninteger filling factors, we find that tunneling can be characterized by a single, well-defined tunneling rate. However, for spin-polarized quantum Hall states (ν= 1,3, and 1/3) tunneling occurs at two distinct rates that differ by up to 2 orders of magnitude. The dependence of the two rates on temperature and tunnel barrier thickness suggests that slow in-plane spin relaxation creates a bottleneck for tunneling of electrons. 1999
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U2 - 10.1103/PhysRevLett.83.3258
DO - 10.1103/PhysRevLett.83.3258
M3 - Article
AN - SCOPUS:0001287325
SN - 0031-9007
VL - 83
SP - 3258
EP - 3261
JO - Physical review letters
JF - Physical review letters
IS - 16
ER -