In-Situ Studies of Semimagnetic Heterojunction Parameters

1989 ◽  
Vol 161 ◽  
Author(s):  
Xiaohua Yu ◽  
N. Troullier ◽  
A. Raisanen ◽  
G. Haugstad ◽  
A. Franciosi
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Band Offset ◽  
Experimental Uncertainty ◽  
Valence Band Offset ◽  
Transitivity Rule ◽  
The Common ◽  
Synchrotron Radiation Photoemission ◽  
Common Anion

ABSTRACTWe have conducted a systematic study of Ge-Cd1−xMnxTe heterostructures prepared in situ by deposition of polycrystalline Ge onto atomically clean Cd1−xMnx (110) surfaces. We examined by means of high resolution synchrotron radiation photoemission the valence band offset δEv as a function of the substrate composition x (x=0, 0.35, and 0.60) and bandgap Eg (Eg = 1.47, 1.93, and 2.13 eV). We find δEv=0.84±0.10eV in all cases, and no dependence of δEv on the substrate bandgap within experimental uncertainty. This finding indicates that within the range of validity of the transitivity rule, Cd1−xMnx-Cd1−yMny heterojunctions may actually follow the common anion rule.

Applications of High-Resolution Powder X-Ray Diffraction

2007 ◽  
Vol 130 ◽  
pp. 7-14 ◽  
Author(s):  
Andrew N. Fitch
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Powder Diffraction ◽  
X Rays ◽  
X Ray Diffraction ◽  
Crystalline Materials ◽  
X Ray ◽  
Structural Characterisation ◽  
Pdf Analysis

The highly-collimated, intense X-rays produced by a synchrotron radiation source can be harnessed to build high-resolution powder diffraction instruments with a wide variety of applications. The general advantages of using synchrotron radiation for powder diffraction are discussed and illustrated with reference to the structural characterisation of crystalline materials, atomic PDF analysis, in-situ and high-throughput studies where the structure is evolving between successive scans, and the measurement of residual strain in engineering components.

scholarly journals Structural elucidation of the degradation mechanism of nickel-rich layered cathodes during high-voltage cycling

2020 ◽  
Vol 56 (36) ◽  
pp. 4886-4889 ◽  
Author(s):  
Jing Lai ◽  
Jun Zhang ◽  
Zuowei Li ◽  
Yao Xiao ◽  
Weibo Hua ◽  
...  
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
High Voltage ◽  
Degradation Mechanism ◽  
Structural Elucidation ◽  
Synchrotron Radiation Diffraction ◽  
Voltage Region ◽  
High Voltage Region ◽  
Layered Cathodes

A splitting of two O3 phases, rather than the often observed O1 phases in the conventional LiCoO2 electrode, was discovered in the LiNi0.85Co0.10Mn0.05O2 at high-voltage region (>4.6 V) by in situ high-resolution synchrotron radiation diffraction.

Synchrotron-radiation photoemission study of in-situ synthesized DCNQI(N,N′-dicyanoquinonediimine)-Cu salts

1995 ◽  
Vol 93 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Akinori Tanaka ◽  
Ashish Chainani ◽  
Tatsushi Miura ◽  
Takashi Takahashi ◽  
Takahumi Miyazaki ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Photoemission Study ◽  
Synchrotron Radiation Photoemission
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