Helicity-Dependent Photocurrents in the Chiral Weyl Semimetal RhSi

Measurements of the circular photogalvanic effect in RhSi reveal a response closing at 0.65 eV. The data, published in 2020 by researchers from Lawrence Berkeley National Laboratory, supports theoretical predictions linking photocurrent amplitude to the topological Berry monopole charge of Weyl nodes. This experimental dataset likely contains tabular measurements of photocurrents under varying conditions.

Use Cases

• Validate theoretical models of the circular photogalvanic effect based on reported photocurrent measurements.
• Study the relationship between topological charge and photocurrent amplitude in Weyl semimetals.
• Analyze the energy-dependent photocurrent response in chiral crystal structures like RhSi.

Strengths

• Data is associated with a 2020 publication in a scientific journal, suggesting peer review.
• Experimental results are directly compared to density functional theory predictions, providing a theoretical benchmark.
• The description specifies a precise energy window closing at 0.65 eV for the measured effect.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset's specific file format and structure are not described.

Provenance

Source

Lawrence Berkeley National Laboratory

Collection Method

Experimental measurements reported in a scientific paper.