S. Jin, T. H. Tifefel, M. Mccormack, R. A. Fastnacht, R. Ramessh et al., Thousandfold Change in Resistivity in Magnetoresistive La-Ca-Mn-O Films, Science, vol.264, issue.5157, p.413, 1994.
DOI : 10.1126/science.264.5157.413

H. Song, W. Kim, S. Kwon, and J. Kang, Magnetic and electronic properties of transition-metal-substituted perovskite manganites???La0.7Ca0.3Mn0.95X0.05O3 (X=Fe,Co,Ni), Journal of Applied Physics, vol.89, issue.6, p.3398, 2001.
DOI : 10.1063/1.1350417

M. F. Tai, F. Y. Lee, and J. B. Shi, Co doping effect on the crystal structure, magnetoresistance and magnetic properties of an (La0.7Ba0.3)(Mn1???xCox)O3 system with x=0???1.0, Journal of Magnetism and Magnetic Materials, vol.209, issue.1-3, p.148, 2000.
DOI : 10.1016/S0304-8853(99)00671-X

D. D. Khalyavin, M. Pekala, G. L. Bychkov, S. V. Shiryaev, S. N. Barilo et al., Magnetotransport properties of flux melt grown single crystals of Co-substituted manganites with perovskite structure, Journal of Physics: Condensed Matter, vol.15, issue.6, p.925, 2003.
DOI : 10.1088/0953-8984/15/6/319

E. Pollert, J. Hejtmanek, Z. Jirak, K. Knizek, M. Marysko et al., Influence of the structure on electric and magnetic properties of La0.8Na0.2Mn1???xCoxO3 perovskites, Journal of Solid State Chemistry, vol.177, issue.12, p.4564, 2004.
DOI : 10.1016/j.jssc.2004.09.004
URL : https://hal.archives-ouvertes.fr/hal-00160686

M. T. Tlili, M. Bejar, E. Dhahri, M. Sajieddine, M. A. Valente et al., Structural and magnetic properties and evidence of spin-glass behavior induced by Fe-doping in perovskite manganites B-site, Materials Characterization, vol.62, issue.2, p.243, 2011.
DOI : 10.1016/j.matchar.2010.12.007

B. M. Wu, B. Li, W. H. Zhen, M. Ausloos, Y. L. Du et al., Spin-cluster effect and lattice-deformation-induced Kondo effect, spin-glass freezing, and strong phonon scattering in La0.7Ca0.3Mn1???xCrxO3, Journal of Applied Physics, vol.97, issue.10, p.103908, 2005.
DOI : 10.1063/1.1898438

H. P. Gao, B. M. Wu, and B. Li, Effect of Cr-doping on thermal transport property in perovskite R0.7A0.3Mn1???xCrxO3, Physica B: Condensed Matter, vol.389, issue.2, p.252, 2007.
DOI : 10.1016/j.physb.2006.06.158

S. K. Srivastava, ·. S. Ravi, and J. Supercond, The Effect of Co Substitution on the Crystal Structure and??Electrical Resistivity of (La0.85Ag0.15)MnO3 Compounds, Journal of Superconductivity and Novel Magnetism, vol.19, issue.197, p.651, 2009.
DOI : 10.1007/s10948-009-0456-y

R. M. Kusters, J. Singleton, D. A. Keen, R. Mcgreevy, and W. Hayes, Magnetoresistance measurements on the magnetic semiconductor Nd0.5Pb0.5MnO3, Physica B: Condensed Matter, vol.155, issue.1-3, p.362, 1989.
DOI : 10.1016/0921-4526(89)90530-9

G. J. Snyder, R. Hiskes, S. Dicarolis, M. R. Beasley, T. H. Geballe et al., MOCVD thin films and bulk material, Physical Review B, vol.53, issue.21, p.14434, 1996.
DOI : 10.1103/PhysRevB.53.14434

N. C. Yeh, R. Vasquez, D. Beam, C. C. Fu, H. Huynh et al., Effects of lattice distortion and Jahn - Teller coupling on the magnetoresistance of and epitaxial films, Journal of Physics: Condensed Matter, vol.9, issue.18, p.3713, 1996.
DOI : 10.1088/0953-8984/9/18/010

N. F. Mott, Metal?insulator transitions, 1990.

N. F. Mott and E. A. Davies, Electronic processes in noncrystalline materials, 1971.

K. H. Ahn, X. W. Wu, K. Liu, and C. L. Chien, materials doped with Fe, Physical Review B, vol.54, issue.21, p.15299, 1996.
DOI : 10.1103/PhysRevB.54.15299

V. Sen, N. Panwar, G. L. Bhalla, and S. K. , Structural, magnetotransport and morphological studies of Sb-doped La2/3Ba1/3MnO3 ceramic perovskites, Journal of Physics and Chemistry of Solids, vol.68, issue.9, p.1685, 2007.
DOI : 10.1016/j.jpcs.2007.04.012

G. J. Snyder, R. Hiskers, S. Dicarolis, M. R. Beasley, and T. H. Geballe, MOCVD thin films and bulk material, Physical Review B, vol.53, issue.21, p.14434, 1996.
DOI : 10.1103/PhysRevB.53.14434

D. Emin, Studies of small-polaron motion IV. Adiabatic theory of the Hall effect, Annals of Physics, vol.53, issue.3, p.439, 1969.
DOI : 10.1016/0003-4916(69)90034-7

Q. Huang, Z. W. Li, J. Li, C. K. Ong, and J. , = 0-0.20) thin films prepared by pulsed laser deposition, Journal of Physics: Condensed Matter, vol.13, issue.18, p.4033, 2001.
DOI : 10.1088/0953-8984/13/18/312

S. Pal, A. Banerjee, E. Rozenberg, and B. K. Chaudhuri, Polaron hopping conduction and thermoelectric power in LaMnO3+??, Journal of Applied Physics, vol.89, issue.9, p.4955, 2001.
DOI : 10.1063/1.1362411

A. Banerjee, S. Pal, and B. K. Chaudhuri, Nature of small-polaron hopping conduction and the effect of Cr doping on the transport properties of rare-earth manganite La0.5Pb0.5Mn1???xCrxO3, The Journal of Chemical Physics, vol.115, issue.3, p.1550, 2001.
DOI : 10.1063/1.1378018

N. F. Mott, Metal-insulator transitions, 1974.