TY - JOUR
T1 - Conduction in curvilinear constrictions
T2 - Generalization of the Landauer formula
AU - Yosefin, Mark
AU - Kaveh, Moshe
PY - 1990
Y1 - 1990
N2 - We have generalized the multichannel Landauer formula to the case of leads with a variable cross section. Local equilibrium is achieved as a result of widening the constriction, rather than by the usual introduction of reservoirs and inelastic scattering. The generalized formula provides an explicit dependence of the conductance on the position of the voltage probes. We show that the previous Landauer formulas are obtained as limiting cases. Application of this formula to ballistic transport predicts new structure for the conductance.
AB - We have generalized the multichannel Landauer formula to the case of leads with a variable cross section. Local equilibrium is achieved as a result of widening the constriction, rather than by the usual introduction of reservoirs and inelastic scattering. The generalized formula provides an explicit dependence of the conductance on the position of the voltage probes. We show that the previous Landauer formulas are obtained as limiting cases. Application of this formula to ballistic transport predicts new structure for the conductance.
UR - http://www.scopus.com/inward/record.url?scp=4444224248&partnerID=8YFLogxK
U2 - 10.1103/physrevlett.64.2819
DO - 10.1103/physrevlett.64.2819
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:4444224248
SN - 0031-9007
VL - 64
SP - 2819
EP - 2822
JO - Physical Review Letters
JF - Physical Review Letters
IS - 23
ER -