The structure of HgBa2CuO4+partial derivative is studied as function of temperature by neutron diffraction and Cu-Kedge EXAFS on the same powder sample with Tc=97K. Both techniques reveal the presence of an anomalous behaviour of the Cu-O in-plane bond length starting at approximate to 140K.
Structural instability around Tc observed in Hg-1201 by neutron powder diffraction and EXAFS / P., Bordet; F., Duc; P. G., Radaelli; A., Lanzara; Saini, Naurang Lal; Bianconi, Antonio; E. V., Antipov. - In: PHYSICA. C, SUPERCONDUCTIVITY. - ISSN 0921-4534. - STAMPA. - 282-287:(1997), pp. 1081-1082. [10.1016/S0921-4534(97)90649-3]
Structural instability around Tc observed in Hg-1201 by neutron powder diffraction and EXAFS
SAINI, Naurang Lal;BIANCONI, Antonio;
1997
Abstract
The structure of HgBa2CuO4+partial derivative is studied as function of temperature by neutron diffraction and Cu-Kedge EXAFS on the same powder sample with Tc=97K. Both techniques reveal the presence of an anomalous behaviour of the Cu-O in-plane bond length starting at approximate to 140K.File allegati a questo prodotto
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