Institut de Chimie Moléculaire et des Matériaux d'Orsay

Equipe de Recherche et Innovation en Electrochimie pour l'Energie (ERIEE)

Ramanathan SURYANARAYANAN

Chargé de Recherche
LPCES - ICMMO - Bât 410
Université Paris-Sud XI
15, rue Georges Clémenceau
91405 Orsay Cedex
FRANCE

Tél : 01.69.15.47.96
ramanathan.suryan@lpces.u-psud.fr

Thème de recherche :

Composés à Magnétorésistance Géante : LaMnO3, (La,Sr)3Mn2O7

Publications récentes :

Suppression of charge-ordering and appearance of magnetoresistance in a spin-cluster glass manganite La0.3Ca0.7Mn0.8Cr0.2O3
T. Sudyoadsuk, R. Suryanarayanan, P. Winotai, L.E. Wenger ( à paraître)

Evidence of electronic phase separation in Er 3+-doped La0.8Sr0.2MnO3
V. Ravindranath and M. S. Ramachandra Rao ,R. Suryanarayanan and G. Rangarajan
Appl. Phys. Lett. 82, 2865 (2003)

Magnetic field suppression of Nernst effect in electron doped manganite Ca0.88Sm0.12MnO3.
R. Suryanarayanan, V. Gasumyants.
J. Phys. D :Appl.Phys.35, 2077 (2002).

Mössbauer, magnetization and crystal structure studies of the double perovskites
Sr2Fe1-xWxO6, x=0,0.01,0.2,0.3 and 0.4
A. P. Douvalis, M. Venkatesan, J. M. D. Coey, M. Grafoute, J-M. Greneche ,
R. Suryanarayanan
J. Phys. Condens. Matter, 14, 12611 (2002)

Spin-dependent hopping conductivity in the paramagnetic state of the bilayer manganite (La0.4Pr0.6)1.2Sr1.8Mn2O7.
P. Wagner, I. Gordon, V. V. Moschalkov, Y. Bruynserade, M. Apostu, R. Suryanarayanan, A.Revcolevschi.
Europhys. Lett., 58, 285 (2002).