R. Caciuffo, J. Mira, J. Rivas, M.A. Señaris-Rodríguez, P.G. Radaelli, F. Carsughi, D. Fiorani and J.B. Goodenough.

Transition from itinerante to polaronic conduction in La_1-xSr_xCoO₃ perovskites.

Europhysics Letters 45 (3), 399 (1999)

 J. Mira, J. Rivas, M. Vázquez, J.M. García-Beneytez, J. Arcas, R.D. Sánchez, M.A. Señaris-Rodríguez.

Critical exponents of the ferromagnetic-paramagnetic phase transition of La_1-xSr_xCoO₃ (0.20≤x≤0.30).

Physical Review B 59, 123 (1999)

J. Mira, J. Rivas, F. Rivadulla, C. Vázquez-Vázquez and M.A. López-Quintela.

Change from first-to second-order magnetic phase transition in La_2/3(Ca,Sr)_1/3MnO₃ perovskites.

Physical Review B 60, 2998 (1999)

 F. Rivadulla, M.A. López-Quintela, L.E. Hueso, J. Rivas, M. T. Causa, C. Ramos, R.D. Sánchez and M. Tovar.

Electron-spin-resonance line broadening around the magnetic phase transition in manganites.

Physical Review B 60, 11922 (1999)

R. Caciuffo, D. Rinaldi, G. Barucca, J. Mira, J. Rivas, M.A. Señarís-Rodríguez, P.G. Radaelli, D. Fiorani and J.B. Goodenough.

Structural details and magnetic order of La_1-xSr_xCoO₃ (x£0.3).

Physical Review B 59, 1068 (1999)

R.D. Sánchez, M.A. López-Quintela, J. Rivas, A. González, A.J. García, C.A. Ramos, R.D. Zysler and S. Ribeiro.

Magnetization and electron paramagnetic resonance of Co clusters embedded in Ag nanoparticles.

Journal of  Physics: Condensed Matter 11, 5643 (1999)

 J. García-Otero, M. Porto, J. Rivas and A. Bunde.

Influence of the cubic anisotropy constants on the hysteresis loops of single-domain particles: A Monte Carlo Study.

Journal of Applied Physics 85, 2287 (1999)

L.E. Hueso, J. Rivas, F. Rivadulla and M.A. López-Quintela.

Tuning of colossal magnetoresistance via grain size change in La_0.67Ca_0.33MnO₃

Journal of Applied Physics 86, 3881 (1999)

 M.Tejedor, J.A. García, J. Carrizo, L. Elbaile, J.D. Santos, J. Mira and J. Rivas..

Analysis of the in-plane magnetic anisotropy in amorphous ribbons obtained by torque magnetometry.

Journal of Applied Physics 86, 2185 (1999)

F. Rivadulla, L.E. Hueso, C. Jardón, C. Vázquez, M.A. López-Quintela, J. Rivas, M.T. Causa, C.A. Ramos and R.D. Sánchez.

Effect of porosity on FMR linewidth of Ln_0.67A_0.33MnO₃ (Ln=La, Pr; A=Ca, Sr).

Journal Magnetism and Magnetic Materials 196-197, 470 (1999)

 C. Jardón, F. Rivadulla, L.E. Hueso, A. Fondado, M.A. López-Quintela, J. Rivas, R. Zysler, M.T. Causa and R.D. Sánchez.

Experimental study of charge ordering transition in Pr_0.67Ca_0.33MnO₃.

Journal Magnetism and Magnetic Materials 196-197, 475 (1999)

 J. Mira, J. Rivas, K. Jonason, P. Nordblad. M.P. Breijo and M.A. Señarís-Rodríguez.

Spin dynamics of La_0.85Sr_0.15CoO₃ perovskite.

Journal Magnetism and Magnetic Materials, 196-197, 487 (1999)

 M. Vázquez, J.M. García-Beneytez, J. Arcas, F.J. Castaño, J. Mira, J. Rivas, M.P. Breijo and M.A. Señarís-Rodríguez.

Magnetic behaviour near the magnetic phase transition in La_1-xSr_xCoO₃ (0.20£x£0.30) perovskites.

Journal Magnetism and Magnetic Materials 196-197, 546 (1999)

 B. Dacuña, J. Mira, M.C. Blanco, M.A. López-Quintela and J. Rivas.

Preparation of CoAg electrodeposited films.

Journal Magnetism and Magnetic Materials 203, 123 (1999)

 F. Rivadulla, L.E. Hueso, J. Rivas, M.C. Blanco, M.A. López-Quintela and R.D. Sánchez.

Effects of electrochemical reduction on the magnetotransport properties of La_0.67Ca_0.33MnO₃ nanoparticles.

Journal Magnetism and Magnetic Materials 203, 253 (1999)

 J. García-Otero, M. Porto, J. Rivas and A. Bunde.

Monte Carlo simulation of hysteresis loops of single-domain particles with cubic anisotropy and their temperature dependence.

Journal Magnetism and Magnetic Materials 203, 268 (1999)

 R.D. Sánchez, J. Mira, J. Rivas, M.P. Breijo and M.A. Señarís-Rodríguez.

Magnetoresistance, temporal evolution, and relaxation of electrical resistivity in the re-entrant semiconducting La_0.85Ba_0.20CoO₃ perovskite.

Journal of Materials Research 14, 2533 (1999)

 F. Rivadulla, M.A. López-Quintela, L.E. Hueso, C. Jardón, A. Fondado, J. Rivas, M.T. Causa and R.D. Sánchez.

Strong ferro-antiferromagnetic competition and charge ordering in Pr_0.67Ca_0.33MnO₃.

Solid State Communications 110, 179 (1999)

 M.A. Señaris-Rodríguez, M.P. Breijo, S. Castro, C. Rey, M. Sánchez, R.D. Sánchez, J.  Mira, A. Fondado and J. Rivas.

Peculiarities in the electrical and magnetic properties of cobalt perovskites Ln_1-xM_xCoO_3.

International Journal of Inorganic Materials 1, 281 (1999)

F. Walz, J. Rivas, J.H.V.J. Brabers and H. Kronmüller.

Analysis of Magnetic After-Effects in Manganese ferrites.

Phys. Stat. Sol. (a) 173, 467 (1999)

M.P. Breijo, S. Castro-García, M.A. Señaris-Rodríguez,  J. Mira, A. Fondado and J. Rivas..

Anomalous Electrical Behaviour in Ferromagnetic La_1-xBa_xCoO_3-d Materials (0 < x ≤ 0.050).

Ionics 5, 213 (1999)

J.Mira, J. Rivas.

Evidencias de cambio de dimensionalidad en el magnetismo del Gd₂CuO₄.

Real Academia galega de Ciencias XVIII, 35 (1999)

N. Randrianantoandro, E. Gaffet, J. Mira, J. M. Greneche

Magnetic hyperfine temperature dependence in Fe-Si crystalline alloys

Solid State Communications 111 (6), 323-327 (1999)