TY - JOUR
T1 - Temperature dependent Hall coefficient in two-dimensional heavily doped p-type germanium
AU - Tessler, Leandro R.
AU - Deutscher, Guy
N1 - Funding Information:
Acknowledgements - The authors thank Ralph Rosenbaum for crltlcal reading of the manuscript. This work was partially supported by the U.S.-Israel Blnatlonal Science
Funding Information:
Foundation and by the Oren Family Chair of Experimental Solid State Physics. One of us (L.R.T.) was supported by a Helmuth Helnemann Scholarship.
PY - 1990/4
Y1 - 1990/4
N2 - We performed accurate measurements of the Hall coefficient at low temperatures of two-dimensional polycrystalline thin films of heavily doped p-type germanium. We found a logarithmic dependence on the temperature, that can be associated with interaction effects in the particle-hole channel. Comparison with the variation of the resistance per square indicated that interaction is more important than localisation for the determination of the electronic properties of this material. The screening factor F was found to be 0.55±0.15, taking into account the strong spin-orbit coupling in p-type germanium. This value is lower than the one predicted by the free electron gas model.
AB - We performed accurate measurements of the Hall coefficient at low temperatures of two-dimensional polycrystalline thin films of heavily doped p-type germanium. We found a logarithmic dependence on the temperature, that can be associated with interaction effects in the particle-hole channel. Comparison with the variation of the resistance per square indicated that interaction is more important than localisation for the determination of the electronic properties of this material. The screening factor F was found to be 0.55±0.15, taking into account the strong spin-orbit coupling in p-type germanium. This value is lower than the one predicted by the free electron gas model.
UR - http://www.scopus.com/inward/record.url?scp=0025415772&partnerID=8YFLogxK
U2 - 10.1016/0038-1098(90)90175-B
DO - 10.1016/0038-1098(90)90175-B
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AN - SCOPUS:0025415772
VL - 74
SP - 219
EP - 221
JO - Solid State Communications
JF - Solid State Communications
SN - 0038-1098
IS - 4
ER -