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Electron structure, valense state, X-ray spectra and surface morfhologies of the new CeM2P2 (M=Fe, Co, Ni) compounds
dc.creator | Shcherba, Ivan D. | |
dc.creator | Uskoković, Dragan | |
dc.creator | Sacharevych, M. V. | |
dc.creator | Jatcyk, Bohdan M. | |
dc.date.accessioned | 2017-06-10T15:45:07Z | |
dc.date.issued | 2013 | |
dc.identifier.uri | https://dais.sanu.ac.rs/123456789/403 | |
dc.description.abstract | High-energy spectroscopy has been used to study the electronic structure and valence state of new ternary intermetallic CeM2P2 (M=Fe, Co, Ni) compounds which crystallize in the ThCr2Si2 types. The calculations of electron energy bands E(k) and partial DOS for compounds were performed by the semi- relativistic linear muffin-tin orbital method without considerations of spin-orbit interactions. Effective filling numbers of electrons in different bands of components in CeM2P2 (M=Fe, Co, Ni) compounds have been calculated. Analysis of the results of calculations showed that the degree of occupation of spd-valence orbital of components varies and differs considerably from of external electrons in isolated atoms. The occupancy of d-orbital of M in the CeM2P2 compounds was shown to be significantly larger than in an isolated state. The electron configuration of P in compounds can be described as s1.4p2.8. LIII – absorption spectra Ce in the ternary CeM2P2 (M=Fe, Co, Ni) compounds were obtained at 78 K and 300 K using a tube spectrometer equipped with an RKD -01 coordinate detector. The mixed valence state of Ce was obtained in the investigated compounds. Surface morphologies CeM2P2 (M=Fe, Co, Ni) compounds are investigated by scanning tunneling microscopy (NT-MDT). The range scanning was 100 um x 100 um and 2 um x 2 um. The surface topography, distribution of grain diameter and area were obtained. The distribution of grain diameter and area of the CeM2P2 (M=Fe, Co, Ni) compounds is established. The picture of the distribution of the stiffness of the samples (amplitude and phase fluctuations) is obtained. | en |
dc.format | (2013) 98-98 | |
dc.format | application/pdf | |
dc.language | en | |
dc.publisher | Belgrade : Materials Research Society of Serbia | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts | en |
dc.subject | CeM2P2 compounds | |
dc.subject | surface morphology | |
dc.subject | electron structure | |
dc.subject | valence state | |
dc.title | Electron structure, valense state, X-ray spectra and surface morfhologies of the new CeM2P2 (M=Fe, Co, Ni) compounds | en |
dc.type | conferenceObject | |
dc.rights.license | BY-NC-ND | |
dcterms.abstract | Јатцyк, Б. М.; Схцхерба, Иван Д.; Ускоковић, Драган; Сацхаревyцх, М. В.; | |
dc.citation.spage | 98 | |
dc.citation.epage | 98 | |
dc.type.version | publishedVersion | |
dc.identifier.fulltext | https://dais.sanu.ac.rs/bitstream/id/21060/400.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_dais_403 |