J.J. Capponi

Centre National de la Recherche Scientifique — France

Physics and Astronomy · Physical Sciences

40h-index6.0kcitations178works0.02yr avg
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Research Topics

Physics of Superconductivity and Magnetism(129), Advanced Condensed Matter Physics(75), High-pressure geophysics and materials(59), Magnetic and transport properties of perovskites and related materials(37), Superconductivity in MgB2 and Alloys(23)

Publications178 total

Intermediate phase formation during Hg-2212 synthesis by in-situ X-ray synchrotron diffraction
Physica C Superconductivity·2000· 1 cited
Local probing of Hg neighboorhood in HgBa2CuO4+δ
Physica C Superconductivity·2000
Local<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mrow><mml:mi>δ</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>probing in the high-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>T</mml:mi></mml:mrow><mml:mrow><mml:mi>c</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>superconductor<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">HgBa</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">CuO</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn><mml:mo>+</mml:mo><mml:mi>δ</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>
Physical review. B, Condensed matter·2000· 10 citedOpen Access
A New Layered Bismuthate (Sr,K)3Bi2O7: Synthesis and Crystal Structure
Journal of Solid State Chemistry·1999· 11 cited
Superstructure and superconductivity in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Li</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mi>−</mml:mi><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">NbO</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mi/><mml:mo>(</mml:mo><mml:mi>x</mml:mi><mml:mi>≈</mml:mi><mml:mn>0</mml:mn><mml:mo>.</mml:mo><mml:mn>7</mml:mn><mml:mo>)</mml:mo></mml:math>single crystals
Physical review. B, Condensed matter·1999· 30 cited
Structural Studies of Cuprates and Bismuthates by Electron Microscopy
1999
Synthesis and Structural Study of Pb2Re2O7−xPyrochlores
Journal of Solid State Chemistry·1998· 8 cited
Electron paramagnetic resonance study of the warwickites Mg1+xTi1−xBO4
Solid State Communications·1998· 5 cited
Overdoped<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Hg</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mi>−</mml:mi><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Au</mml:mi></mml:mrow><mml:mrow><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Ba</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Ca</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cu</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mrow><mml:mn>8</mml:mn><mml:mo>+</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>and the origin of the intrinsic increase of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>T</mml:mi></mml:mrow><mml:mrow><mml:mi>c</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>under pressure in mercury cuprates
Physical review. B, Condensed matter·1998· 17 cited
The origin of the T c increase with pressure in Hg-1223
APS·1998
Fluorination of Underdoped Mercurocuprate Superconductors
Journal of Superconductivity·1998· 3 cited
Discovery of a second family of bismuth-oxide-based superconductors
Nature·1997· 111 cited
Fluorination of mercury-based high-temperature superconductors
Physica C Superconductivity·1997· 34 cited
Large enhancement of Tc (50K) by applying high pressure in the Hg-2212 superconductor
Physica C Superconductivity·1997· 5 cited
New phases in the double-Hg layer system Hg2Ba2LnCu2O8-δ (LnNdGd, DyLu)
Physica C Superconductivity·1997· 3 cited
Electron microscopy study of the Ba and Sr mercury-based superconductors HgmM2(Y,Ca)n−1CunOy, with MBa or Sr and m=1,2
Physica C Superconductivity·1997· 2 cited
Synthesis, Structural, and Magnetic Characterization of New Hg2Ba2LnCu2O8−δPhases withLn=Nd–Gd, Dy–Lu
Journal of Solid State Chemistry·1997· 4 cited
Synthesis and resistivity properties of Sr1 − xLaxPbO3-δ and SrPb1 − xBixO3 − δ
Materials Research Bulletin·1997· 16 cited
Au-1212: A new superconducting gold cuprate with Tc above 80 K
Physica C Superconductivity·1997· 3 cited
Superconducting properties of the Mercury and Cu/C phases
Physica C Superconductivity·1997
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Frequent Co-authors

M. Marezio(34), Catherine Bougerol(25), P. Bordet(13), J.L. Tholence(12), E.A. Hewat(12), J. Chenávas(11), A.W. Hewat(7), S.M. Loureiro(7), J.L. Tholence(7), Е.В. Антипов(6), M.Á. Alario-Franco(6), J.L. Hodeau(6), S.N. Putilin(5), A. Santoro(5), O. Chmaissem(4), Evgeny V. Antipov(4), B. Souletie(4), P. Léjay(3), J.L. Hodeau(3), P. Strobel(3)