TY - JOUR
T1 - Kondo-like behavior near the metal-to-insulator transition of nanoscale granular aluminum
AU - Bachar, N.
AU - Lerer, S.
AU - Hacohen-Gourgy, S.
AU - Almog, B.
AU - Deutscher, G.
PY - 2013/6/18
Y1 - 2013/6/18
N2 - We show that the normal state transport properties of nanoscale granular aluminum films, near the metal to insulator transition, present striking similarities with those of Kondo systems. Those include a negative magnetoresistance, a minimum of resistance R at a temperature Tm in metallic films, a logarithmic rise at low temperatures, and a negative curvature of R(T) at high temperatures. These normal state properties are interpreted in terms of spin-flip scattering of conduction electrons by local magnetic moments, possibly located at the metal/oxide interfaces.
AB - We show that the normal state transport properties of nanoscale granular aluminum films, near the metal to insulator transition, present striking similarities with those of Kondo systems. Those include a negative magnetoresistance, a minimum of resistance R at a temperature Tm in metallic films, a logarithmic rise at low temperatures, and a negative curvature of R(T) at high temperatures. These normal state properties are interpreted in terms of spin-flip scattering of conduction electrons by local magnetic moments, possibly located at the metal/oxide interfaces.
UR - http://www.scopus.com/inward/record.url?scp=84879946308&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.87.214512
DO - 10.1103/PhysRevB.87.214512
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AN - SCOPUS:84879946308
SN - 1098-0121
VL - 87
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 21
M1 - 214512
ER -