Lattice structure of the diborides has been studied to explore a possible relation between high Tc superconductivity and expansion of the boron plane. High purity Mg1-xAxB2 diborides have been prepared by direct reaction of the elements and the lattice parameters are determined by X-ray diffraction, providing a measure to the strain ε of the B-B distance. The results show that the superconductivity in these intermetallics appears in a critical region of tensile strain and charge density in the boron plane. © 2003 Elsevier Ltd. All rights reserved.
The role of boron lattice expansion in superconducting diborides / Stefano, Agrestini; Bianconi, Antonio; S., De Negri; M., Giovannini; A., Saccone. - In: INTERMETALLICS. - ISSN 0966-9795. - 11:11-12 SPEC. ISS(2003), pp. 1339-1344. [10.1016/s0966-9795(03)00177-8]
The role of boron lattice expansion in superconducting diborides
BIANCONI, Antonio;
2003
Abstract
Lattice structure of the diborides has been studied to explore a possible relation between high Tc superconductivity and expansion of the boron plane. High purity Mg1-xAxB2 diborides have been prepared by direct reaction of the elements and the lattice parameters are determined by X-ray diffraction, providing a measure to the strain ε of the B-B distance. The results show that the superconductivity in these intermetallics appears in a critical region of tensile strain and charge density in the boron plane. © 2003 Elsevier Ltd. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
