Overdoped to underdoped Y{sub 0.8}Ca{sub 0.2}Ba{sub 2}Cu{sub 3}O{sub x}: {sup 170}Yb{sup 3+} Moessbauer probe measurements of electronic states and local Cu(2) magnetic order

Journal Article · Mon Nov 01 00:00:00 EST 1999 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1023/A:1022515026834· OSTI ID:20012839

Hodges, J A; Bonville, P; Forget, A

The authors have used paramagnetic {sup 170}Yb{sup 3+} Moessbauer probes to examine two related properties of Y{sub 0.8}Ca{sub 0.2}Ba{sub 2}Cu{sub 3}O{sub x} as a function of the doping level. First, by measuring the low temperature thermal dependence of 1/T{sub 1}{sup (el)} of the probes in overdoped samples, they obtain information concerning the density of states below {Tc}. Second, by measuring the internal (molecular) field appearing on the probes in underdoped samples, they examine the fluctuating short range correlated Cu(2) magnetic order which is progressively introduced a the doping level is reduced. This magnetic order microscopically cohabits with superconductivity.

• Research Organization: Centre d'Etudes de Saclay, Gif sur Yvette (FR)
• OSTI ID: 20012839
• Journal Information: Journal of Low Temperature Physics, Vol. 117, Issue 3-4; Conference: International Conference on Physics and Chemistry of Molecular and Oxide Superconductors, MOS'99, Stockholm (SE), 07/28/1999--08/02/1999; Other Information: PBD: Nov 1999; ISSN 0022-2291
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CRYSTAL DOPING
YTTRIUM OXIDES
CALCIUM OXIDES
BARIUM OXIDES
COPPER OXIDES
YTTERBIUM 170
MOESSBAUER EFFECT
TRANSITION TEMPERATURE
SUPERCONDUCTIVITY
ORDER PARAMETERS
ELECTRONIC STRUCTURE
MAGNETIC PROPERTIES