Research output: Contribution to journal › Article › peer-review
Quasiatomic treatment of near-edge-structure features in X-ray absorption spectra of first-row polyatomic systems. / Pavlychev, A. A.; Vinogradov, A. S.; Akimov, V. N.; Nekipelov, S. V.
In: Physica Scripta, Vol. 41, No. 1, 01.01.1990, p. 160-163.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Quasiatomic treatment of near-edge-structure features in X-ray absorption spectra of first-row polyatomic systems
AU - Pavlychev, A. A.
AU - Vinogradov, A. S.
AU - Akimov, V. N.
AU - Nekipelov, S. V.
PY - 1990/1/1
Y1 - 1990/1/1
N2 - The formation mechanism of near-edge-structure features in X-ray absorption spectra of first-row polyatomic systems is discussed. It was found that the molecular π and σ shape resonances in spectra of these systems can be treated as a result of the atomic 1s-2p resonance splitting by a molecular field. This conclusion is in good agreement with data of oscillatior strength measurements for the shape resonances in N2. It was shown that the energy interval ΔE(π - σ) can be used for determination of the interatomic distance in linear and planar first-row anions in crystals.
AB - The formation mechanism of near-edge-structure features in X-ray absorption spectra of first-row polyatomic systems is discussed. It was found that the molecular π and σ shape resonances in spectra of these systems can be treated as a result of the atomic 1s-2p resonance splitting by a molecular field. This conclusion is in good agreement with data of oscillatior strength measurements for the shape resonances in N2. It was shown that the energy interval ΔE(π - σ) can be used for determination of the interatomic distance in linear and planar first-row anions in crystals.
UR - http://www.scopus.com/inward/record.url?scp=0001494340&partnerID=8YFLogxK
U2 - 10.1088/0031-8949/41/1/039
DO - 10.1088/0031-8949/41/1/039
M3 - Article
AN - SCOPUS:0001494340
VL - 41
SP - 160
EP - 163
JO - Physica Scripta Topical Issues
JF - Physica Scripta Topical Issues
SN - 0031-8949
IS - 1
ER -
ID: 43211522