This readme.txt file was generated on 2025-09-29 by Darius H Torchinsky ------------------- GENERAL INFORMATION ------------------- 1. Title of Dataset: PdGaPGE 2. Author Information: Principal Investigator Contact Information Name: Darius H Torchinsky Institution: Temple University Address: 1925 N 12th St, Philadelphia PA, 19122 Email: dtorchin@temple.edu ORCID: 0000-0001-6497-2237 3. Date of data collection (approximate range): 2024-01-10 to 2024-10-31 4. Geographic location of data collection: Philadelphia, PA, Philadelphia County, USA 5. Information about funding sources or sponsorship that supported the collection of the data: We acknowledge funding by the National Science Foundation under Grant No.NSF/DMR-1945222. NSF MRI grant CHE-2215854 is acknowledged for the X-ray crystallographic studies. We also acknowledge support from the Deutsche Forschungsgemeinschaft (DFG) under SFB1143 (Project No. 247310070), the Wurzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter ct.qmat (EXC 2147, Project No. 390858490) and the QUAST-FOR5249-449872909. -------------------------- SHARING/ACCESS INFORMATION -------------------------- 1. Licenses/restrictions placed on the data, or limitations of reuse: None 2. Recommended citation for the data: See citation of associated Phys Rev B publication 3. Citation for and links to publications that cite or use the data: DOI associated with this article 4. Links to other publicly accessible locations of the data: N/A 5. Links/relationships to ancillary or related data sets: N/A 6. Was data derived from another source? No -------------------- DATA & FILE OVERVIEW -------------------- 1. File list (filenames, directory structure (for zipped files) and brief description of all data files, add additional entries as necessary): The raw datafiles have names such as, e.g., PdGa111L-500.0K-THz-1150nm-CPL-LOB-H-001.txt PdGa111L Indicates PdGa with (111) surface orientation, left handed enantiomer 500.0K null number used for room temperature measurement. Some datafiles might have 300.0K, 600.0K, etc. as this parameter was not relevant to this study THz name of computer used to take data, associated with technique employed 1150nm excitation wavelength CPL excitation is circularly polarized left. CPR = circularly polarized right, LIN(V) indicates vertically polarized excitation. LOB data acquired using low optical bias (as described in associated reference) H/V Measured polarization of emitted THz 001 indicates first data point in series. A. Filename: CPGE Bulk L.zip Short description: zip file containing all raw data used to produce Figs 3a, 3c and 3e. Data are two-column, tab-delimited text files. The first column is the time in picoseconds, the second column is the measured voltage in V. B. Filename: CPGE Bulk R.zip Short description: zip file containing all raw data used to produce Figs 3b, 3d and 3e. Data are two-column, tab-delimited text files. The first column is the time in picoseconds, the second column is the measured voltage in V. C. Filename: LPGE Bulk L.zip Short description: zip file containing all raw data used to produce Figs 5a, 5c and 5e. Data are two-column, tab-delimited text files. The first column is the time in picoseconds, the second column is the measured voltage in V. Note that to reproduce the figures, the crystal/data must be rotated by the amount specified in the text file. This is not a simple rotation and must be done considering that the crystal response is governed by a third rank tensor. D. Filename: LPGE Bulk R.zip Short description: zip file containing all raw data used to produce Figs 5b, 5d and 5e. Data are two-column, tab-delimited text files. The first column is the time in picoseconds, the second column is the measured voltage in V. Note that to reproduce the figures, the crystal/data must be rotated by the amount specified in the text file. This is not a simple rotation and must be done considering that the crystal response is governed by a third rank tensor. E. Filename: CPGE Surface L.zip Short description: zip file containing all raw data used to produce Figs 6a, 6c, 6e, 6g and 6h. Data are two-column, tab-delimited text files. The first column is the time in picoseconds, the second column is the measured voltage in V. Note that to reproduce the figures, the crystal/data must be rotated by the amount specified in the text file. F. Filename: CPGE Surface R.zip Short description: zip file containing all raw data used to produce Figs 6b, 6d, 6f, 6g and 6h. Data are two-column, tab-delimited text files. The first column is the time in picoseconds, the second column is the measured voltage in V. Note that to reproduce the figures, the crystal/data must be rotated by the amount specified in the text file. G. Filename: LPGE Surface L.zip Short description: zip file containing all raw data used to produce Figs 7a, 7c, 7e, 7g and 7h. Data are two-column, tab-delimited text files. The first column is the time in picoseconds, the second column is the measured voltage in V. Note that to reproduce the figures, the crystal/data must be rotated by the amount specified in the text file. This is not a simple rotation and must be done considering that the crystal response is governed by a third rank tensor. H. Filename: LPGE Surface R.zip Short description: zip file containing all raw data used to produce Figs 7b, 7d, 7f, 7g and 7h. Data are two-column, tab-delimited text files. The first column is the time in picoseconds, the second column is the measured voltage in V. Note that to reproduce the figures, the crystal/data must be rotated by the amount specified in the text file. This is not a simple rotation and must be done considering that the crystal response is governed by a third rank tensor. 2. Relationship between files, if important for context: N/A 3. Additional related data collected that was not included in the current data package: XRD data to determine which sample is which enantiomer 4. Are there multiple versions of the dataset? no -------------------------- METHODOLOGICAL INFORMATION -------------------------- 1. Description of methods used for collection/generation of data: See experiment section of associated article 2. Methods for processing the data: See associated article 3. Software- or Instrument-specific information needed to interpret the data, including software and hardware version numbers: MATLAB or equivalent data analysis software 4. Standards and calibration information, if appropriate: N/A 5. Environmental/experimental conditions: Ambient conditions 6. Describe any quality-assurance procedures performed on the data: A selection of data were remeasured for reproducibility. Those data are not included here, only the data used in the article. 7. People involved with sample collection, processing, analysis and/or submission: See author list of associated article