By R. Nagarajan (auth.), Karl-Hartmut Müller, Vladimir Narozhnyi (eds.)

ISBN-10: 0792368797

ISBN-13: 9780792368793

ISBN-10: 9401007632

ISBN-13: 9789401007634

This quantity includes lots of the contributions provided on the NATO complex examine Workshop on infrequent Earth Transition steel Borocarbides (Nitrides): Superconducting, Magnetic and basic nation homes, held in Dresden, Germany at thirteen - 18 June 2000. The Workshop used to be chaired by means of ok. -H. MUller and V. N. Narozhnyi. This used to be the 1st assembly in particular fascinated with the quaternary rare-earth transition-metal borocarbides and nitrides - a brand new category of magnetic superconductors came across in 1994. the incentive for organizing this workshop was once to collect scientists (both experimentalists and theoreticians), actively operating during this box in numerous international locations, utilizing diverse equipment, to replace their issues of view at the homes ofthese fabrics and to acknowledge the instructions for destiny learn. absolutely forty eight members from 17 nations ofEurope, the us, BraZil, India, Israel and Japan took half during this assembly. moreover approximately 15 observers (mainly from Germany) attended. The clinical Programme of the Workshop used to be composed of seven sections. The part creation and review was once via the digital constitution and houses and Phonon Spectra; Magnetic homes and CEF results; interaction among Superconductivity and Magnetism; Vortex Lattice; skinny motion pictures; Nature of the Superconducting kingdom in Borocarbides sections. absolutely 50 displays got (45 ofthem in oral form). massive awareness used to be dedicated to the characterization of the actual position of borocarbides among the opposite magnetic and superconducting platforms and, specifically, magnetic superconductors.

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Thus, one may expect that the larger separation of the Ni 2B 2 layers by LaN triple layers in the boronitride gives more anisotropic properties. The electronic structure of La3Ni2B2N3 reveals indeed a significantly larger anisotropy of the Fermi surface velocities V x : V z "-' 2 : 1 compared to LuNi 2B 2C with V x : V z roughly 1 : 1, though its three-dimensional metallic character is preserved [4]. g. via the anisotropy of the upper critical field H e2 . For the borocarbides such studies were reported by various groups, but could not yet be performed for the boronitride due to the severe difficulties to prepare it in single crystalline form.

105,1641 27. W. (1994) Superconductivity in (LuC)2Ni2B2 and (LuC)NhB 2, Phys Rev B50 9445 28. S. xMxB2C (M=Co, Cu), Physica C246, 317 29. Cava, R. , Krajewski, J. , W. , Gyorgy, E. , (1994) Superconductivity in Lanthanum Nickel boronitride, Nature 372, 245 30. F. (1994) Structure of the 13K superconductor La3Ni2B2N3 and the related phase LaNiBN, Nature 372, 759 31. Zandbergen, H. F. (1994) HREM on LU2NiBC2, a phase related to superconducting LuNhB 2C, J Sol. St. IIO, 196 EFFECTS OF LOCAL MOMENT MAGNETISM ON THE SUPERCONDUCTING PROPERTIES OF RNhBzC COMPOUNDS Paul C.

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Rare Earth Transition Metal Borocarbides (Nitrides): Superconducting, Magnetic and Normal State Properties by R. Nagarajan (auth.), Karl-Hartmut Müller, Vladimir Narozhnyi (eds.)


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