Lattice compression of Si crystals and crystallographic position of As impurities measured with x-ray standing wave spectroscopy

1999 ◽  
Vol 85 (3) ◽  
pp. 1429-1437 ◽  
Author(s):  
A. Herrera-Gómez ◽  
P. M. Rousseau ◽  
J. C. Woicik ◽  
T. Kendelewicz ◽  
J. Plummer ◽  
...  
Author(s):  
G. Thomas ◽  
K. M. Krishnan ◽  
Y. Yokota ◽  
H. Hashimoto

For crystalline materials, an incident plane wave of electrons under conditions of strong dynamical scattering sets up a standing wave within the crystal. The intensity modulations of this standing wave within the crystal unit cell are a function of the incident beam orientation and the acceleration voltage. As the scattering events (such as inner shell excitations) that lead to characteristic x-ray production are highly localized, the x-ray intensities in turn, are strongly determined by the orientation and the acceleration voltage. For a given acceleration voltage or wavelength of the incident wave, it has been shown that this orientation dependence of the characteristic x-ray emission, termed the “Borrmann effect”, can also be used as a probe for determining specific site occupations of elemental additions in single crystals.


1997 ◽  
Vol 81 (3) ◽  
pp. 1173-1179 ◽  
Author(s):  
J. C. Boulliard ◽  
B. Capelle ◽  
S. Gualandris ◽  
A. Lifchitz ◽  
J. Cibert ◽  
...  
Keyword(s):  

1999 ◽  
Vol 32 (10A) ◽  
pp. A65-A70 ◽  
Author(s):  
A Lessmann ◽  
M Schuster ◽  
H Riechert ◽  
S Brennan ◽  
A Munkholm ◽  
...  
Keyword(s):  

1995 ◽  
Vol 28 (4A) ◽  
pp. A206-A211 ◽  
Author(s):  
M Schuster ◽  
A Lessmann ◽  
A Munkholm ◽  
S Brennan ◽  
G Materliks ◽  
...  

2010 ◽  
Vol 97 (6) ◽  
pp. 062503 ◽  
Author(s):  
Alexander X. Gray ◽  
Florian Kronast ◽  
Christian Papp ◽  
See-Hun Yang ◽  
Stefan Cramm ◽  
...  
Keyword(s):  

2000 ◽  
Vol 453 (1-3) ◽  
pp. 183-190 ◽  
Author(s):  
G.J. Jackson ◽  
S.M. Driver ◽  
D.P. Woodruff ◽  
B.C.C. Cowie ◽  
R.G. Jones

1988 ◽  
Vol 195 (1-2) ◽  
pp. 237-254 ◽  
Author(s):  
D.P. Woodruff ◽  
D.L. Seymour ◽  
C.F. McConville ◽  
C.E. Riley ◽  
M.D. Crapper ◽  
...  

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Qiyang Lu ◽  
Henrique Martins ◽  
Juhan Matthias Kahk ◽  
Gaurab Rimal ◽  
Seongshik Oh ◽  
...  

AbstractWhen a three-dimensional material is constructed by stacking different two-dimensional layers into an ordered structure, new and unique physical properties can emerge. An example is the delafossite PdCoO2, which consists of alternating layers of metallic Pd and Mott-insulating CoO2 sheets. To understand the nature of the electronic coupling between the layers that gives rise to the unique properties of PdCoO2, we revealed its layer-resolved electronic structure combining standing-wave X-ray photoemission spectroscopy and ab initio many-body calculations. Experimentally, we have decomposed the measured VB spectrum into contributions from Pd and CoO2 layers. Computationally, we find that many-body interactions in Pd and CoO2 layers are highly different. Holes in the CoO2 layer interact strongly with charge-transfer excitons in the same layer, whereas holes in the Pd layer couple to plasmons in the Pd layer. Interestingly, we find that holes in states hybridized across both layers couple to both types of excitations (charge-transfer excitons or plasmons), with the intensity of photoemission satellites being proportional to the projection of the state onto a given layer. This establishes satellites as a sensitive probe for inter-layer hybridization. These findings pave the way towards a better understanding of complex many-electron interactions in layered quantum materials.


Sign in / Sign up

Export Citation Format

Share Document