Related Experiment Video
Updated: Apr 13, 2026
09:00
Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
Published on: June 28, 2018
10.7K
The ALBA spectroscopic LEEM-PEEM experimental station: layout and performance
Lucia Aballe1, Michael Foerster1, Eric Pellegrin1
1ALBA Synchrotron Light Facility, Carretera BP 1413, Km. 3.3, Cerdanyola del Vallès, Barcelona 08290, Spain.
Journal of Synchrotron Radiation
|May 2, 2015
Summary
The ALBA Synchrotron
Area of Science:
- Surface science
- Materials science
- Spectroscopy
Background:
- The CIRCE beamline at ALBA Synchrotron Light Facility offers advanced surface analysis capabilities.
- User operation commenced in 2012, providing researchers with sophisticated tools.
Purpose of the Study:
- To present the spectroscopic Low Energy Electron Microscopy (LEEM) and Photoemission Electron Microscopy (PEEM) experimental station.
- To highlight its capabilities for surface imaging with chemical, structural, and magnetic sensitivity.
Main Methods:
- Utilizes an Elmitec LEEM III microscope with an electron imaging energy analyzer.
- Employs X-ray excited photoelectrons, LEEM, and UV-PEEM imaging modes.
- Features in situ surface preparation techniques like ion sputtering and gas exposure.
Main Results:
- Achieves lateral spatial resolution better than 20 nm with X-ray excited photoelectrons.
- Attains 10 nm resolution in LEEM and UV-PEEM modes.
- Demonstrates versatility through various imaging modes and in situ preparation.
Conclusions:
- The LEEM-PEEM station at ALBA provides high-resolution, multi-modal surface analysis.
- Its capabilities support diverse research fields, enabling detailed surface characterization.
Related Concept Videos
01:26Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
1.0K
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
1.0K
01:29Atomic Emission Spectroscopy: Lab
835
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
835
01:22Atomic Emission Spectroscopy: Instrumentation
1.6K
The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers. Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
1.6K
01:20Atomic Emission Spectroscopy: Overview
4.4K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
4.4K
01:30Atomic Emission Spectroscopy: Interference
771
In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
771
01:22Atomic Absorption Spectroscopy: Instrumentation
2.3K
An atomic absorption spectrophotometer (AAS) comprises several components: a radiation source, an atomizer, a monochromator, and a detector. The radiation source can be a hollow-cathode lamp (HCL) or an electrodeless-discharge lamp (EDL), both of which provide a narrow emission line of the required wavelength. However, some instruments use continuum sources and high-resolution monochromators to achieve a narrow range of radiation.
The atomizer used in AAS can be either a flame atomizer or an...
The atomizer used in AAS can be either a flame atomizer or an...
2.3K