Progress and perspectives on electron-doped cuprates

NP Armitage, P Fournier, RL Greene - Reviews of Modern Physics, 2010 - APS
Although the vast majority of high-T c cuprate superconductors are hole-doped, a small
family of electron-doped compounds exists. Underinvestigated until recently, there has been …

Speciation using X-ray absorption fine structure (XAFS)

A Gaur, BD Shrivastava - Review Journal of Chemistry, 2015 - Springer
X-ray absorption fine structure (XAFS) spectroscopy is in use as a unique fingerprinting
technique. By employing spectra of well-defined chemical species (standards), XAFS can be …

La3Ni2O6:  A New Double T'-type Nickelate with Infinite Ni1+/2+O2 Layers

VV Poltavets, KA Lokshin, S Dikmen… - Journal of the …, 2006 - ACS Publications
New mixed-valent, Ni1+/Ni2+, metastable nickelate, La3Ni2O6, was synthesized by low-
temperature reduction of La3Ni2O7 with CaH2. The crystal structure of La3Ni2O6 (space …

Shallow donors in diamond: chalcogens, pnictogens, and their hydrogen complexes

SJ Sque, R Jones, JP Goss, PR Briddon - Physical review letters, 2004 - APS
The utility of diamond as an electronic material is compromised by the lack of a suitable
shallow donor. Here, ab initio theory is used to investigate the donor levels of substitutional …

Anisotropy in magnetic properties and electronic structure of single-crystal

G Liang, K Park, J Li, RE Benson, D Vaknin… - Physical Review B …, 2008 - APS
We report the experimental and theoretical results on the anisotropies in the magnetic
properties and x-ray absorption spectra of single-crystal Li Fe PO 4. A mean-field theory is …

Crystal Structures of Ln4Ni3O8 (Ln = La, Nd) Triple Layer T'-type Nickelates

VV Poltavets, KA Lokshin, M Croft, TK Mandal… - Inorganic …, 2007 - ACS Publications
Single-phase Ln4Ni3O8 (Ln= La, Nd) nickelates were synthesized and their crystal
structures were determined by Rietveld refinement of powder neutron diffraction data. The …

[PDF][PDF] A comparative study of the methods of speciation using X-ray absorption fine structure

A Gaur, B Shrivastava - Acta Physica Polonica A, 2012 - bibliotekanauki.pl
Determination of the chemical forms along with the relative quantity of the different species
in a given sample, termed as speciation, can be done by analyzing X-ray absorption fine …

Role of valence fluctuations in the superconductivity of Ce122 compounds

H Yamaoka, Y Ikeda, I Jarrige, N Tsujii, Y Zekko… - Physical review …, 2014 - APS
Pressure dependence of the Ce valence in CeCu 2 Ge 2 has been measured up to 24 GPa
at 300 K and to 17 GPa at 18–20 K using x-ray absorption spectroscopy in the partial …

Polarized XAS studies of ternary nickel oxides

A Sahiner, M Croft, S Guha, I Perez, Z Zhang… - Physical Review B, 1995 - APS
Polarized Ni K-edge x-ray-absorption spectroscopy (XAS) results on La 2− x Sr x NiO 4 (x=
0.2–1.3) are presented and interpreted with the aid of polarized Cu K-edge results on the …

Three-loop correction to the instanton density. II. The sine-Gordon potential

MA Escobar-Ruiz, E Shuryak, AV Turbiner - Physical Review D, 2015 - APS
In this second paper on quantum fluctuations near the classical instanton configurations [see
MA Escobar-Ruiz, E. Shuryak, and AV Turbiner, preceding article, Phys. Rev. D 92, 025046 …