Introducing new resonant soft x-ray scattering capability in SSRL

TL;DR

This paper details a new resonant soft X-ray scattering setup at SSRL that offers low-temperature operation, extensive angular control, and high-efficiency detection, advancing materials science research capabilities.

Contribution

The paper introduces a novel RSXS instrument at SSRL with improved temperature, angular range, and detection efficiency, enabling more comprehensive material studies.

Findings

Enhanced temperature control down to 9.8 K

Extensive angular motion capabilities

Effective detection with high quantum efficiency

Abstract

Resonant soft X-ray scattering (RSXS) is a powerful technique for probing both spatial and electronic structures within solid-state systems. We present a newly developed RSXS capability at beamline 13-3 of the Stanford Synchrotron Radiation Lightsource (SSRL), designed to enhance materials science research. This advanced setup achieves a base sample temperature as low as 9.8 K combined with extensive angular motions (azimuthal \phi and flipping \chi), enabling comprehensive exploration of reciprocal space. Two types of detectors, an Au/GaAsP Schottky photodiode and a CCD detector with over 95% quantum efficiency, are integrated to effectively capture scattered photons. Extensive testing has confirmed the enhanced functionality of this RSXS setup, including its temperature and angular performance. The versatility and effectiveness of the system have been demonstrated through studies of various materials, including superlattice heterostructures and high-temperature superconductors.