Preliminary Results from a New Spin Spectrometer

1998 ◽  
Vol 524 ◽  
Author(s):  
J. G. Tobina ◽  
P. J. Bedrossiana ◽  
T. R. Cumminsb ◽  
G. D. Waddillb ◽  
S. Mishrac ◽  
...  
Keyword(s):  
Data Collection ◽  
Light Source ◽  
Ultrathin Films ◽  
Photoelectron Spectroscopy ◽  
Linear Dichroism ◽  
Energy Dispersive ◽  
Detection Scheme ◽  
X Ray ◽  
Preliminary Results ◽  
Magnetic Surfaces

ABSTRACTThe first preliminary results from a novel spectrometer for elementally-specific measurements of magnetic surfaces and ultrathin films are presented here. The key measurements are based upon spin-resolving and photon-dichroic photoelectron spectroscopy. True spinresolution is achieved by the use of a Mini-Mott detection scheme. The photon-dichroic measurements include the variant magnetic x-ray linear dichroism (MXLD). Both a multi-channel, energy dispersive collection scheme as well as the spin-detecting Mini-Mott apparatus are used in data collection. The [Spin Spectrometer] is based at the Spectromicroscopy Facility (Beamline7)at the Advanced Light Source.

scholarly journals New ambient pressure X-ray photoelectron spectroscopy endstation at Taiwan light source

2019 ◽  
Author(s):  
Chia-Hsin Wang ◽  
Sun-Tang Chang ◽  
Sheng-Yuan Chen ◽  
Yaw-Wen Yang
Keyword(s):  
Light Source ◽  
Photoelectron Spectroscopy ◽  
Ambient Pressure ◽  
X Ray

Magnetic x-ray linear dichroism in the photoelectron spectroscopy of ultrathin magnetic alloy films

1996 ◽  
Vol 79 (8) ◽  
pp. 5626 ◽  
Author(s):  
J. G. Tobin ◽  
K. W. Goodman ◽  
G. J. Mankey ◽  
R. F. Willis ◽  
J. D. Denlinger ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Linear Dichroism ◽  
Magnetic Alloy ◽  
Alloy Films ◽  
X Ray

scholarly journals Photoelectron and X-ray Absorption Spectroscopy of Pu

2003 ◽  
Vol 802 ◽  
Author(s):  
J. G. Tobin ◽  
B. Chung ◽  
R. K. Schulze ◽  
J. D. Farr ◽  
D. K. Shuh
Keyword(s):  
Light Source ◽  
Absorption Spectroscopy ◽  
Photoelectron Spectroscopy ◽  
Future Studies ◽  
X Ray ◽  
Advanced Light Source ◽  
First Results ◽  
X Ray Absorption

ABSTRACTWe have performed Photoelectron Spectroscopy and X-Ray Absorption Spectroscopy upon highly radioactive samples of Plutonium at the Advanced Light Source in Berkeley, CA, USA. First results from alpha and delta Plutonium are reported as well as plans for future studies of actinide studies.

scholarly journals On the electronic configuration in Pu

2006 ◽  
Vol 986 ◽  
Author(s):  
J G Tobin ◽  
P Soderlind ◽  
A Landa ◽  
K T Moore ◽  
A J Schwartz ◽  
...  
Keyword(s):  
Detailed Analysis ◽  
Light Source ◽  
Absorption Spectroscopy ◽  
Photoelectron Spectroscopy ◽  
Electronic Configuration ◽  
X Ray ◽  
Sample Quality ◽  
Advanced Light Source ◽  
First Results ◽  
X Ray Absorption

AbstractX-Ray Absorption Spectroscopy (XAS) and Photoelectron Spectroscopy (PES) have been performed upon highly radioactive samples, particularly Plutonium, at the Advanced Light Source in Berkeley, CA, USA. First results from alpha and delta Plutonium are reported as well as a detailed analysis of sample quality.

scholarly journals Surface science at the PEARL beamline of the Swiss Light Source

2017 ◽  
Vol 24 (1) ◽  
pp. 354-366 ◽  
Author(s):  
Matthias Muntwiler ◽  
Jun Zhang ◽  
Roland Stania ◽  
Fumihiko Matsui ◽  
Peter Oberta ◽  
...  
Keyword(s):  
Light Source ◽  
Surface Science ◽  
Photoelectron Spectroscopy ◽  
Hexagonal Boron Nitride ◽  
Real Space ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
X Ray ◽  
Photoelectron Diffraction ◽  
Swiss Light Source

The Photo-Emission and Atomic Resolution Laboratory (PEARL) is a new soft X-ray beamline and surface science laboratory at the Swiss Light Source. PEARL is dedicated to the structural characterization of local bonding geometry at surfaces and interfaces of novel materials, in particular of molecular adsorbates, nanostructured surfaces, and surfaces of complex materials. The main experimental techniques are soft X-ray photoelectron spectroscopy, photoelectron diffraction, and scanning tunneling microscopy (STM). Photoelectron diffraction in angle-scanned mode measures bonding angles of atoms near the emitter atom, and thus allows the orientation of small molecules on a substrate to be determined. In energy scanned mode it measures the distance between the emitter and neighboring atoms; for example, between adsorbate and substrate. STM provides complementary, real-space information, and is particularly useful for comparing the sample quality with reference measurements. In this article, the key features and measured performance data of the beamline and the experimental station are presented. As scientific examples, the adsorbate–substrate distance in hexagonal boron nitride on Ni(111), surface quantum well states in a metal-organic network of dicyano-anthracene on Cu(111), and circular dichroism in the photoelectron diffraction of Cu(111) are discussed.

Determination of the thickness of ultrathin films by X-ray photoelectron spectroscopy

2004 ◽  
Vol 49 (5) ◽  
pp. 275-278
Author(s):  
V. I. Nefedov ◽  
V. G. Yarzhemsky ◽  
I. S. Nefedova ◽  
R. Szargan
Keyword(s):  
Ultrathin Films ◽  
Photoelectron Spectroscopy ◽  
X Ray

Photoelectron Angular Distributions Of Ultrathin NI/CU(001) Films

1996 ◽  
Vol 437 ◽  
Author(s):  
G.J. Mankey ◽  
K. Subramanian ◽  
R.L. Stockbauer ◽  
R.L. Kurtz
Keyword(s):  
Photoelectron Spectroscopy ◽  
Periodic Potential ◽  
Electronic States ◽  
Linear Dichroism ◽  
Angular Distributions ◽  
X Ray ◽  
Photoelectron Diffraction ◽  
Ellipsoidal Mirror ◽  
Magnetic Linear Dichroism ◽  
Photoelectron Angular Distributions

AbstractWe present measurements of the evolution with film thickness of the 3d electronic states at the Fermi energy of ultrathin Ni films. The morphology and thickness of the films is determined from x-ray photoelectron spectroscopy. x-ray photoelectron diffraction and x-ray magnetic linear dichroism using synchrotron radiation. Photoelectron angular distributions were measured using an ellipsoidal mirror analyzer. Even at submonolayer Ni coverages, the 3d electronic states exhibit bulk-like properties. This is attributed to the short screening length of electrons in metals, the localization of the 3d electrons, the similarity of the Ni and Cu ion cores, and finally the interaction with the underlying fcc periodic potential.

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