Search results for "vismutti"
showing 5 items of 5 documents
Annealing study of bismuth thin films
2010
Electrical and magnetotransport properties of thin bismuth films were studied in the range of 4.2 - 295 K in applied magnetic fields up to 3.5 T. The bismuth films were deposited on mica and SiO substrates and subjected to post deposition thermal annealing in order to improve the crystal structure. Annealed films showed lower resistivities and higher magnetoresistance as compared to the non annealed samples, however, the resistivity behavior was non-metallic and the mean grain size in the films were not significantly increased. A two carrier model for magnetoresistance and Hall coefficient was used to extract carrier mobilities and concentrations from the transport data.
Detailed spectroscopy of 193Bi
2015
An experiment aiming to study shape coexistence in 193Bi has been performed. Due to its transitional character, it has an exceptionally large number of structures identified close to the yrast line. Many new states have been found, significantly extending the previously known level scheme of 193Bi, including several new rotational bands. The π i13/2 band was extended to I π = 45/2+. The I π = 31/2+ member of the π i13/2 band was found to de-excite also to a long-lived isomeric state. This isomeric state is located at 2350 keV and has a spin and parity of 29/2+. The half-life of the isomeric state was measured to be 85(3) μs and it decays via the emission of an 84 keV E2 transition. A level …
Strong absorption and ultrafast localisation in NaBiS2 nanocrystals with slow charge-carrier recombination.
2022
Funder: AiF Project, no: ZIM-KK5085302DF0
Detailed spectroscopy of the neutron-deficient bismuth isotopes ¹⁹³,¹⁹⁵Bi
2015
Two experiments aiming to study the shape coexistence and competing structures in 193Bi and 195Bi isotopes have been performed at the Accelerator laboratory of the University of Jyv askyl a, Finland (JYFL). Many new states have been found, hugely extending the previously known level schemes for both isotopes. The i13=2 bands were extended up to I = 45/2+ in both the 193;195Bi isotopes. In case of 193Bi, the I = 31/2+ member of the i13=2 band was found to de-excite also to a long-lived isomeric state. This link determines the energy of the isomeric state to be 2350(1) keV and suggests a spin and parity of 29/2+. The half-life of the isomeric state was measured to be 85(3) s. A level structur…
Detailed spectroscopy of 195Bi
2017
An experiment focused on the study of shape coexistence and new high-spin structures in 195 Bi has been performed. The nucleus is in a transitional region of the bismuth isotope chain. A large number of new states have been found, resulting in a significant extension of the previously known level scheme. Several new collective structures have been identified. A strongly coupled rotational band built upon the 13 / 2 + isomeric state was extended up to I π = ( 49 / 2 + ) and an energy of 5706 keV. The I π = 31 / 2 + member of the π i 13 / 2 band was also found to feed a new long-lived isomeric state with an excitation energy of 2616 keV and a spin and parity of I π = 29 / 2 + . The half-life …