Electronic structure of the layered room-temperature antiferromagnet AlMn2B2

2021 ◽  
Vol 103 (19) ◽  
Author(s):  
Xiangle Lu ◽  
Hao Su ◽  
Liqin Zhou ◽  
Jiacheng Gao ◽  
Man Li ◽  
...  
1987 ◽  
Vol 52 (4) ◽  
pp. 970-979 ◽  
Author(s):  
Otto Exner ◽  
Pavel Fiedler

Aromatic chloroformates Ib-Ie were shown to exist in the ap conformation, in agreement with aliphatic chloroformates, i.e. the alkyl group is situated cis to the carbonyl oxygen atom as it is the case in all esters. While 4-nitrophenyl chloroformate (Ie) is in this conformation in crystal, in solution at most several tenths of percent of the sp conformation may be populated at room temperature and in nonpolar solvents only. A new analysis of dipole moments explained the previous puzzling results and demonstrated the impossibility to determine the conformation by this single method, in consequence of the strong interaction of adjoining bonds. If, however, the ap conformation is once proven, the dipole moments reveal some features of the electron distribution on the functional group, characterized by the enhanced polarity of the C-Cl bond and reduced polarity of the C=O bond. This is in agreement with the observed bond lengths and angles.


2019 ◽  
Vol 7 (16) ◽  
pp. 4817-4821 ◽  
Author(s):  
U. Sandhya Shenoy ◽  
D. Krishna Bhat

Resonance states due to Bi and In co-doping, band gap enlargement, and a reduced valence-band offset in SnTe lead to a record high room-temperature ZT.


RSC Advances ◽  
2016 ◽  
Vol 6 (100) ◽  
pp. 98001-98009 ◽  
Author(s):  
Thais Chagas ◽  
Thiago H. R. Cunha ◽  
Matheus J. S. Matos ◽  
Diogo D. dos Reis ◽  
Karolline A. S. Araujo ◽  
...  

We have used atomically-resolved scanning tunneling microscopy and spectroscopy to study the interplay between the atomic and electronic structure of graphene formed on copper via chemical vapor deposition.


2005 ◽  
Vol 133 (3) ◽  
pp. 177-182 ◽  
Author(s):  
Saki Sonoda ◽  
Yoshiyuki Yamamoto ◽  
Takahiko Sasaki ◽  
Ken-chi Suga ◽  
Koichi Kindo ◽  
...  

2003 ◽  
Vol 802 ◽  
Author(s):  
M. Butterfield ◽  
T. Durakiewicz ◽  
E. Guziewicz ◽  
J. J. Joyce ◽  
D. P. Moore ◽  
...  

AbstractHigh resolution photoelectron spectroscopy (PES) studies were conducted on a δ-phase Plutonium sample cleaned by laser ablation and gas dosed with O2 and H2. The measurements were made with an instrument resolution of 60 meV and with the sample at 77 K. The PES data strongly support a model with Pu2O3 growth on the metal and then PuO2 growth on the Pu2O3 layer at this temperature. In vacuum, the PuO2 reduces to Pu2O3 at room temperature with a pressure of 6×10−11 Torr. In the case of H2 dosing the hydrogen appears to penetrate the surface and disrupt the valence band as evidenced by a drop in intensity of the peak at EF which is not accompanied by a drop in the main 5f manifold at ∼2eV.


2017 ◽  
Vol 50 (29) ◽  
pp. 295002 ◽  
Author(s):  
The-Long Phan ◽  
T A Ho ◽  
N T Dang ◽  
Manh Cuong Nguyen ◽  
Van-Duong Dao

1992 ◽  
Vol 281 ◽  
Author(s):  
X. Jin ◽  
M. Zhang ◽  
G. S. Dong ◽  
Z. S. Li ◽  
Xun Wang ◽  
...  

ABSTRACTFormation and electronic structure of the Mn/GaAs(100) interface grown at room temperature are studied by photoemission. The growth at early stage is identified to be in two-dimensional mode. The chemical reaction and the interface diffusion happened between Mn and GaAs are explored in some details. A ferromagnetic phase of Mn overlayer at early stage is deduced from the change of electron density of states near the Fermi edge.


2016 ◽  
Vol 4 (19) ◽  
pp. 4166-4175 ◽  
Author(s):  
Yu-Chun Chen ◽  
Zumin Wang ◽  
Andreas Leineweber ◽  
Johannes Baier ◽  
Thomas Tietze ◽  
...  

Room-temperature ferromagnetic-like behavior of ZnO pellets is strongly associated with the corresponding surface electronic structure.


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