Institut de Chimie & Biologie des Membranes & des Nano-objets • Bordeaux

LIA France-Japan GEM Réseau RMN Aquitain Master AC2QMAPS IPEP master UREKA UMT FOLIES INDIA
Offres d'Emploi Plateau Technique Conseil d'Unité Animation Scientifique WEB Editorial Committee Hygiène & Sécurité Communication Administration Directoire Scientifique Direction
Sophie Zinn-Justin, 14 April 2017, 11 am, IECB Christina Sizun, 18 May 2017, 4 pm, ENSCBP Cécile Feuillie, 16 February 2017, 4 PM, ENSCBP Félix M. Goñi, 8 december 2016, 4 pm, ENSCBP Félix M. Goñi, 17 november 2016, 4 pm, ENSCBP Carl Creutz, 20 october 2016, 4 pm, ENSCBP Diego Romero, 30 september 2016, 11 am, IECB A. Ciaccafava, 8 september 2016, 14h, ENSCBP A. Ramamoorthy, 16 June 2016, 16h, ENSCBP Alexandre de Brevern, 2 june 2016, ENSCBP Isabelle Landrieu, 26 May, 16h, ENSCBP Frances Sepavoric, 12 May, 16h, ENSCBP Thomas Pradeu, 7 April 2016, 9h, ENSCBP Françoise Argoul, 3 march 2016, 16h, ENSCBP Corinne Loutelier-Bourhis, 16/12/2015, 16h Aristotelis XENAKIS, 3 december 2015, 16h Fabian Kiessling, 26 november 2015, 11h Michaël Molinari, 20 november 2015, 11h Dipankar Das Sarma, 28 October 2015, 14h. Olivier Donard, 22 october 2015, 16h, ENSCBP E. Morvan & A.Grelard, 17/12/2015, 16h, ENSCBP Christophe Cullin, 10 september 2015, 14 h Brigitte Lindet, 18 June 2015, 16h, ENSCBP(B) Marion Decossas, 4 June 2015, 16h, ENSCBP(B) Pascale Schellenberger, 21 Mai 2015, 16h F. Leal-Calderon, 7 May 2015, 16h, ENSCBP(B) Ibrahim Abdulhalim, 9 April 2015, 14h, ENSCBP Manon Carré, 26 March 2015, 14h, ENSCBP(B) C. Bure & JM Schmitter, 19 March 2015, 16h T. Ogata & H. Ihara, 17 March 2015, 11h, IECB Banafshe Larijani, 12 March 2015, 16h, ENSCBP
Événements Nouveau
Partenariat Congés Formation Admin CBMN Conseil Institut/Scientifique
Affiliations Les sites CBMN
LIA France-Japan GEM Réseau RMN Aquitain Master AC2QMAPS IPEP master UREKA UMT FOLIES INDIA
Offres d'Emploi Plateau Technique Conseil d'Unité Animation Scientifique WEB Editorial Committee Hygiène & Sécurité Communication Administration Directoire Scientifique Direction
Chimie Biophysique Chimie Biomimétique et Thérapeuti... Biologie et Biotechnologie Administration
Sophie Zinn-Justin, 14 April 2017, ... Christina Sizun, 18 May 2017, 4 pm,... Cécile Feuillie, 16 February 2017,... Félix M. Goñi, 8 december 2016, 4... Félix M. Goñi, 17 november 2016, ... Carl Creutz, 20 october 2016, 4 pm,... Diego Romero, 30 september 2016, 11... A. Ciaccafava, 8 september 2016, 14... A. Ramamoorthy, 16 June 2016, 16h,... Alexandre de Brevern, 2 june 2016, ... Isabelle Landrieu, 26 May, 16h, ENS... Frances Sepavoric, 12 May, 16h, ENS... Thomas Pradeu, 7 April 2016, 9h, EN... Françoise Argoul, 3 march 2016, 1... Corinne Loutelier-Bourhis, 16/12/20... Aristotelis XENAKIS, 3 december 201... Fabian Kiessling, 26 november 2015,... Michaël Molinari, 20 november 2015... Dipankar Das Sarma, 28 October 2015... Olivier Donard, 22 october 2015, 16... E. Morvan & A.Grelard, 17/12/2015, ... Christophe Cullin, 10 september 201... Brigitte Lindet, 18 June 2015, 16h,... Marion Decossas, 4 June 2015, 16h, ... Pascale Schellenberger, 21 Mai 2015... F. Leal-Calderon, 7 May 2015, 16h, ... Ibrahim Abdulhalim, 9 April 2015, 1... Manon Carré, 26 March 2015, 14h, ... C. Bure & JM Schmitter, 19 March 20... T. Ogata & H. Ihara, 17 March 2015,... Banafshe Larijani, 12 March 2015, 1...
Événements Nouveau
Patricia DULOR Alain BRISSON Olivier LAMBERT Jochen LANG Pascale SUBRA-PATERNAULT Maria URDACI Marie-Christine DURRIEU Xavier SANTARELLI Gilles GUICHARD Ivan HUC Isabelle BESTEL Juan ELEZGARAY Antoine LOQUET Sophie LECOMTE Reiko ODA Marc BONNEU

Dipankar Das Sarma, 28 October 2015, 14h.

The seminar will take place  Wednesday 28th October 2015 at 14h in the ICMCB amphitheatre.

 

Oxides that refuse to become multiferroic !

Professor D. D. Sarma

Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, India

 

ABSTRACT

Summary: Starting with several very promising candidates, our search for multiferroic systems has invariably yielded negative results. Our investigations establish interesting microscopic origins of this avoidance of any long range order in such systems, particularly of the electric polarization in spite of having a large dielectric constant. In this talk, I shall discuss three very different series of compounds, namely Ln2CuTiO6 [1,2], Mn-doped SrTiO3 [3,4] and La2NiMnO6 [5] and show that the suppression of the long range order in each case leads to some very important and interesting (magneto)dielectric properties of these materials. Additionally, we shall show that La2NiMnO6 is a true example of a multi-glassy system, while Mn-doped SrTiO3, contrary to a recent claim, is not. If time permits, I may also discuss briefly the case of Nd2NiMnO6, primarily with reference to its interesting magnetic properties [6].

 

[1] Debraj Choudhury et al., Appl. Phys. Lett. 96, 162903 (2010). [2] Debraj Choudhury et al., Phys. Rev. B 82, 134203 (2010). [3] Debraj Choudhury et al., Phys. Rev. B 84, 125124 (2011). [4] Debraj Choudhury et al., Sci. Reports 3, 1433 (2013). [5] Debraj Choudhury et al., Phys. Rev. Lett. 108, 127201 (2012). [6] Somnath Pal et al., Unpublished results.

 

SHORT BIOGRAPHY

 

Prof DD Sarma, Bangalore, IndiaProf Dipankar Das Sarma studied Physics from the Indian Institute of Technology, Kanpur in 1977 and obtained a PhD from the Indian Institute of Sciences, (IISc) in Bengaluru in 1982 under the supervision of the famous Indian chemist, C.N.R. Rao. He worked as a post doctoral fellow in the Jülich Research Centre in Germany an returned to India at IISc where he obtained an assistant professorship position in 1989, and a full professor position in 1999. He is the former director of the Solid State and Structural Chemistry Unit at IISc and hold a number of academic positions in India (Kolkata, Mumbai, Pune, etc.) and abroad (Ireland, Japan, Italy, Sweeden, etc.). Prof. Sarma is a member of many professional bodies within the Department of Science and Technology in India and belongs to many Scientific Boards abroad including the Indo-French Centre for the Promotion of Advanced Science (CEFIPRA). D.D. Sarma, is very well known for his researches in the fields of Solid State Chemistry, Spectroscopy, Condensed Matter Physics, Materials Science, and Nanoscience. He published more than 400 original articles that are cited more than 11000 times.

 

 

Contact : e.dufourc@cbmn.u-bordeaux.fr & maglione@icmcb.cnrs.fr

 

 

CBMN Accueil Intro Actualités Séminaires Pubs (WS) Plateformes
Départements Administration Biologie et Biotechnologie Chimie Biomimétique et Thérapeutique Chimie Biophysique
Un problème sur le site? Contactez notre webmaster : webmaster@cbmn.u-bordeaux.fr
Services Direction Directoire Scientifique Administration Communication Hygiène & Sécurité WEB Editorial Committee Animation Scientifique Conseil d'Unité Plateau Technique Offres d'Emploi
EXT INDIA UMT FOLIES UREKA IPEP master Master AC2QMAPS Réseau RMN Aquitain GEM LIA France-Japan
Équipes Patricia DULOR Alain BRISSON Olivier LAMBERT Jochen LANG Pascale SUBRA-PATERNAULT Maria URDACI Marie-Christine DURRIEU Xavier SANTARELLI Gilles GUICHARD Ivan HUC Isabelle BESTEL Juan ELEZGARAY Antoine LOQUET Sophie LECOMTE Reiko ODA Marc BONNEU
informations Mentions légales Plan d'accès Réalisation : Little Big Studio
Dernière mise à jour : 22/03/2017

CNRS Université de Bordeaux Institut Polytechnique de Bordeaux

CBMN Allée de Geoffroy St Hilaire Bât B14
33600 Pessac
Tél. : +33 (0)5 40 00 68 00
Fax : +33 (0)5 40 00 22 00
Mail : contact@cbmn.u-bordeaux.fr