TY - JOUR
T1 - Ballistic transport in InSb quantum wells at high temperature
AU - Goel, N.
AU - Chung, S. J.
AU - Santos, M. B.
AU - Suzuki, K.
AU - Miyashita, S.
AU - Hirayama, Y.
N1 - Funding Information:
The University of Oklahoma group would like to acknowledge J.C. Keay, T.D. Mishima, M.B. Johnson, J.C. Chokomakoua, J.L. Hicks and S.Q. Murphy for their help during this work. N. Goel would like to acknowledge the Graduate College and the Graduate Student Senate at the University of Oklahoma for travel and research grants. This work is supported by the National Science Foundation under Grants No. DMR-0209371, DMR-0080054 and ECS-9733966.
PY - 2004/1
Y1 - 2004/1
N2 - Measurements were made on a 0.2 μm four-terminal device, fabricated from an InSb/Al0.15In0.85Sb quantum well structure, at temperatures from 1.5 to 300 K. Negative bend resistance, a signature of ballistic transport, was observed at temperatures up to 205 K. The disappearance of the negative bend resistance at higher temperatures was accompanied by a non-linear dependence of the Hall voltage on magnetic field. The non-linearity indicates multiple-carrier conduction, which we characterize using quantitative mobility spectrum analysis.
AB - Measurements were made on a 0.2 μm four-terminal device, fabricated from an InSb/Al0.15In0.85Sb quantum well structure, at temperatures from 1.5 to 300 K. Negative bend resistance, a signature of ballistic transport, was observed at temperatures up to 205 K. The disappearance of the negative bend resistance at higher temperatures was accompanied by a non-linear dependence of the Hall voltage on magnetic field. The non-linearity indicates multiple-carrier conduction, which we characterize using quantitative mobility spectrum analysis.
KW - Ballistic transport
KW - InSb quantum wells
KW - Molecular beam epitaxy
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U2 - 10.1016/j.physe.2003.08.012
DO - 10.1016/j.physe.2003.08.012
M3 - Conference article
AN - SCOPUS:0347129558
VL - 20
SP - 251
EP - 254
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
SN - 1386-9477
IS - 3-4
T2 - Proceedings of the 11th International Conference on Narrow Gap
Y2 - 16 June 2003 through 20 June 2003
ER -