INVESTIGADORES
ACHA Carlos Enrique
congresos y reuniones científicas
Título:
High pressure resistivity of the Ti4O7 Magneli phase
Autor/es:
ACHA, C; M. NÚÑEZ-REGUEIRO; ALARIO FRANCO, M.A.; SOULETIE, J
Lugar:
Praga
Reunión:
Conferencia; LT21; 1996
Institución organizadora:
Academy of Sciences of the Czech Republic
Resumen:
Resistivity measurements under pressure up to 230 kbar were done in the bipolaronicTi 4 O 7 Magneli phase. The metal-insulator transitions are suppressed and a metallic behavior is obtained for room temperature, while a Ln (1/T) dependence is observed for low temperatures. The results fit into a framework similar to the one of the Kondo effect, but where the role played by the magnetic field is taken by the electric field (E), generating a T independentLn (1/E) resistivity for fields that verify thatE>Ec≈T. A Phenomenological approach is given to interpret our results.
