Carlos Acha:

MOST RELEVANT PAPERS :

ENHANCEMENT OF THE TC OF C1-YCUYBA2CA2CU3OX, C.Chaillout, S.Le Floch, E.Gautier, P.Bordet, C.Acha, Y.Feng, A.Sulpice, J.L.Tholence, M.A.Alario Franco and M.Marezio, Physica C 266 (1996) 215. An increase of more than 50 K is obtained in this compound, where the optimal doping is determined by high pressure experiments.

A STUDY OF THE TC PRESSURE DEPENDENCE IN THE HgBa2CuO4+d SUPERCONDUCTOR USING THE EXTENDED HUBBARD HAMILTONIAN, E.V.L. de Mello and C.Acha, Phys.Rev.B 56 (1997) 466. A microscopic interpretation of the pressure effects on Tc in high-temperature superconductors is given.

HIGH PRESSURE EFFECTS IN FLUORINATED HgBa2Ca2Cu3O8 , M. Monteverde, C. Acha, M. Núñez-Regueiro, D. A. Pavlov, K. A. Lokshin, S. N. Putilin and E. V. Antipov, Europhys. Lett. 72 (2005) 458.  We obtain in this compound the record high superconducting Tc under pressure (166 K @ 23 GPa).

EVIDENCES OF A CONSOLUTE CRITICAL POINT IN THE PHASE SEPARATION REGIME OF La5/8-
yPryCa3/8MnO3 (y=0.4) SINGLE CRYSTALS, G. Garbarino, C. Acha, P. Levy, T. Y. Koo and S-W. Cheong
Phys. Rev. B 74 (2006) 100401(R).
A particular critical behavior of the breakdown field is observed in this phase-separated compound that points to the existence of a consolute point .

TOMONAGA-LUTTINGER LIQUID AND COULOMB BLOCADE IN MULTIWALL CARBON NANOTUBES UNDER
PRESSURE, M. Monteverde, G. Garbarino, M. Núñez-Regueiro, J. Souletie, C. Acha, X. Jing, L. Lu, Z. W. Pan, and S. S. Xie and R. Egger, Phys. Rev. Lett. 97 (2006) 176401.  The syudy of
the conductance of macroscopic multiwall nanotube (MWNT) bundles under pressure shows power laws in temperature and voltage, as corresponding to a network of bulk-bulk connected Tomonaga-Luttinger liquids (LLs)

 MECHANISM FOR BIPOLAR RESISTIVE SWITCHING IN TRANSITION-METAL OXIDES, M. J. Rozenberg, M. J. Sánchez, R. Weht, C. Acha, F. Gomez-Marlasca, and P. Levy,  Phys. Rev. B 81 (2010) 115101. With a simple model we explain non-trivial characteristics of the resistive switching in complex oxide-metal interfaces.