CERN Accelerating science

CERN Document Server Pronađeno je 20 zapisa  1 - 10slijedeći  idi na zapis: Pretraživanje je potrajalo 0.54 sekundi 
1.
Perturbed Angular Correlation Study of the Static and Dynamic Aspects of Cadmium and Mercury Atoms Inside and Attached to a C60 Fullerene Cage / Das, Satyendra K (Bhabha Atomic Res. Ctr.) ; Guin, Rashmohan (Bhabha Atomic Res. Ctr.) ; Banerjee, Debasish (Bhabha Atomic Res. Ctr.) ; Johnston, Karl (CERN) ; Das, Parnika (Calcutta, VECC) ; Butz, Tilman (Leipzig U.) ; Amaral, Vitor S (U. Aveiro (main) ; Aveiro U.) ; Correia, Joao G (CERN ; ITN, Sacavem) ; Barbosa, Marcelo B (CERN ; ITN, Sacavem)
30 keV Cd-111m and 50 keV Hg-199m beams from ISOLDE were used to implant on preformed targets of C-60 with a thickness of 1 mg cm(-2). Endofullerene compounds, viz. [...]
2014 - 8 p. - Published in : Z. Naturforsch. A 69 (2014) 611-618
2.
Ab-initio study of the relation between electric polarization and electric field gradients in ferroelectrics / Gonçalves, J N (U. Aveiro) ; Stroppa, A (L'Aquila U.) ; Correia, J G (IST/ITN, Lisbon) ; Butz, T (Leipzig U.) ; Picozzi, S (L'Aquila U.) ; Fenta, A S (U. Aveiro) ; Amaral, V S (U. Aveiro)
The hyperfine interaction between the quadrupole moment of atomic nuclei and the electric field gradient (EFG) provides information on the electronic charge distribution close to a given atomic site. In ferroelectric materials, the loss of inversion symmetry of the electronic charge distribution is necessary for the appearance of the electric polarization. [...]
arXiv:1203.1306; CERN-OPEN-2014-023.- Aveiro : U. Aveiro, 2012 - 10 p. - Published in : Phys. Rev. B 86 (2012) 035145 Preprint: PDF;
3.
PAC study of the static and dynamic aspects of an atom inside a fullerene cage / Das, S K (Bhabha Atomic Res. Ctr.) ; Guin, R (Bhabha Atomic Res. Ctr.) ; Banerjee, D (Bhabha Atomic Res. Ctr.) ; Das, P (Bhabha Atomic Res. Ctr.) ; Butz, T (Leipzig U.) ; Amaral, V S (Aveiro U.) ; Correia, J G (ITN, Sacavem ; CERN) ; Barbosa, M B (ITN, Sacavem ; CERN)
CERN-INTC-2011-001 ; INTC-I-131.
- 2011.
Fulltext
4.
Positive muon diffusion in iron and nickel : pressure dependence / Butz, T ; Chappert, J ; Dufresne, J F ; Hartmann, O ; Karlsson, E ; Lindgren, B ; Longobardi, R ; Norlin, L O ; Pezzetti, J P ; Yaouanc, A
The hyperfine field B/sub hf/ at positive muon ( mu /sup +/) in iron and nickel was previously found. Exhibits marked deviations from the bulk magnetization as a function of temperature. [...]
1980 - Published in : J. Magn. Magn. Mater. 15-18 (1980) 671-2
In : International Conference on Magnetism, Munich, Germany, 3 - 7 Sep 1979, pp.671-2
5.
Investigation of ancient human bone by means of ionoluminescence and PIXE / Spemann, D ; Butz, T ; Jankuhn, S ; Vogt, J
2000
In : 16th International Conference on the Application of Accelerators in Research and Industry, Denton, TX, USA, 1 - 5 Nov 2000, pp.428-431
6.
$^{204m}$Pb : a new probe for TDPAC experiments in biology complementing the well established probes $^{111m}$Cd and $^{199m}$Hg / Tröger, W (spokesperson) (Univ. Leipzig) ; Correia, J G (resp.) (CERN) ; Heinrich, F ; Reinert, T ; Spemann, D ; Menzel, F ; Butz, T ; Lu, Y ; Liu, J
INTC-P-176 ; CERN-INTC-2003-020.
- 2003. - 7 p.
Access to fulltext document - Access to fulltext document - Access to fulltext document - CERN library copies
7.
Local probing of Hg neighboorhood in HgBa$_{2}$CuO$_{4+\delta}$ / IS360 Collaboration
Electric field gradients (EFG) on mercury sites of the Hg1201 high-TC superconductors were measured with the perturbed angular correlation (PAC) technique. In Hg1201 samples where PAC detects higher oxygen content the EFGs have decreased to lower values indicating an elongation of the Hg-apical oxygen dumb-bell. [...]
CERN-OPEN-2001-017.- Geneva : CERN, 2000 - 4 p. - Published in : Physica C 341-348 (2000) 1969-1972 Access to fulltext document: PDF; - CERN library copies
8.
Local O$_{\delta}$ probing in the high-$T_{C}$ superconductor HgBa$_{2}$CuO$_{4+\delta}$ / ISOLDE Collaboration
Electric-field gradients on mercury sites of the HgBa$_{2}$CuO$_{4+\delta}$ high-$T_{C}$ superconductor were measured with the perturbed angular correlation technique and interpreted with $\textit{ab initio}$ calculations. Under oxygen annealing, an asymmetric electric-field gradient has been assigned to the presence of single oxygen atoms, O$_{\delta}$ , which are located in the Hg planes. [...]
CERN-OPEN-2001-013.- Geneva : CERN, 2000 - 7 p. - Published in : Phys. Rev. B 61 (2000) 11769-11775 APS Published version, local copy: PDF; Access to fulltext document: PDF; - CERN library copies
9.
Studies of high-$T_{c}$ superconductors doped with radioactive isotopes / Aveiro-Berlin-Grenoble-Jerusalem-Leipzig-Leuven-Lisbon-Moscow-Paris-Oporto-Princeton-Sacavém-Stuttgart-ISOLDE Collaboration
CERN-INTC-2000-039 ; INTC-P-86-add-1.
- 2000. - 15 p.
Full text - Access to fulltext document - CERN library copies
10.
Studies of colossal magnetoresistive oxides with radioactive isotopes / Alves, E ; Amaral, V S ; Araújo, J P ; Butz, T ; Correia, J G ; Dubourdieu, C ; Habermeier, H U ; Lourenço, A A ; Marques, J G ; Da Silva, M F A et al.
We propose to study Colossal Magnetoresistive (CMR) oxides with several nuclear techniques, which use radioactive elements at ISOLDE. [...]
CERN-INTC-2000-038 ; INTC-P-132.
- 2000. - 15 p.
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