Theoretical study of the structural dependence of nuclear quadrupole frequencies in high-T_c superconductors

dc.date.accessioned	2008-06-20T10:53:54Z
dc.date.available	2008-06-20T10:53:54Z
dc.date.issued	1989
dc.identifier.issn	1098-0121
dc.identifier.issn	0163-1829
dc.identifier.issn	0556-2805
dc.identifier.uri	urn:nbn:de:hebis:34-2008062022141
dc.identifier.uri	http://hdl.handle.net/123456789/2008062022141
dc.format.extent	415744 bytes
dc.format.mimetype	application/pdf
dc.language.iso	eng
dc.publisher	American Physical Society	eng
dc.rights	Urheberrechtlich geschützt
dc.rights.uri	https://rightsstatements.org/page/InC/1.0/
dc.subject.ddc	530
dc.title	Theoretical study of the structural dependence of nuclear quadrupole frequencies in high-T_c superconductors	eng
dc.type	Aufsatz
dcterms.abstract	The remarkable difference between the nuclear quadrupole frequencies v_Q of Cu(1) and Cu(2) in YBa_2Cu_3O_6 and YBa_2Cu_3O_7 is analyzed. We calculate the ionic contribution to the electric field gradients and estimate, by using experimental results for Cu_2O and La_2CuO_4, the contribution of the d valence electrons. Thus, we determine v_Q1, v_Q2, and the asymmetry parameter η for YBa_2Cu_3O_6 and YBa_2Cu_3O_7. The number of holes in dthe Cu-O planes and chains is found to be important for the different behavior of v_Q1 and v_Q2.	eng
dcterms.accessRights	open access
dcterms.bibliographicCitation	Phys. Rev. B 40, 8809 (1989)
dcterms.creator	Garcia, Martin E.
dcterms.creator	Bennemann, K. H.
dc.description.et	Extern	ger