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Pressure effect in the Hg-based superconductors: A structural study

Rafael Gatt (Institutionen för fysik) ; J.S. Olsen ; L Gerward ; I Bryntze ; A Kareiva ; Itai Panas (Institutionen för oorganisk miljökemi) ; Lars-Gunnar Johansson (Institutionen för oorganisk miljökemi)
PHYSICAL REVIEW B (0163-1829 ). Vol. 57 (1998), 21, p. 13922-13928.
[Artikel, refereegranskad vetenskaplig]

Energy-dispersive synchrotron x-ray-diffraction studies were performed on powder samples of Hg1212 and Hg1223 in a diamond-anvil cell at pressure up to 300 kbar. High compressibility was found. A reversible structural transition was observed, which is suggested to correspond to a pressure-induced ordering along the c axis. The accommodation of the Ba ion at high pressure is studied, and the effect it might have on the electronic structure of these materials is discussed by employing results from cluster calculations.



Denna post skapades 2010-09-16.
CPL Pubid: 126435

 

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Institutioner (Chalmers)

Institutionen för fysik (1900-2003)
Institutionen för oorganisk miljökemi (1900-2004)

Ämnesområden

Elektronstruktur
Supraledning
Fasta tillståndets kemi
Kvantkemi

Chalmers infrastruktur