# Technical Document Extraction: Heatmap Visualizations of K₁ and E_F Parameters
## Panel (a): K₁ = +0.035t
- **Title**: (a) K₁: E_F = +0.035t
- **Axes**:
- **X-axis**: `length (nm)` (direction: left to right, indicated by black arrow)
- **Y-axis**: `width (nm)` (range: -10 nm to +10 nm)
- **Color Scale**:
- Right-hand color bar (0.0 to 0.6, red = highest intensity)
- Red/yellow gradient indicates data intensity (higher values in red regions)
- **Key Features**:
- Concentrated red/yellow regions near `length = -40 nm` and `length = +40 nm`
- Gradual intensity decay toward the center (`length = 0 nm`)
- Symmetric pattern across `width = 0 nm`
## Panel (c): K₁ = -0.035t
- **Title**: (c) K₁: E_F = -0.035t
- **Axes**:
- **X-axis**: `length (nm)` (direction: left to right, indicated by black arrow)
- **Y-axis**: `width (nm)` (range: -10 nm to +10 nm)
- **Color Scale**:
- Right-hand color bar (0.0 to 0.6, red = highest intensity)
- Red/yellow gradient indicates data intensity (higher values in red regions)
- **Key Features**:
- Concentrated red/yellow regions near `length = -40 nm` and `length = +40 nm`
- Gradual intensity decay toward the center (`length = 0 nm`)
- Symmetric pattern across `width = 0 nm`
## Cross-Referenced Observations
1. **Legend Consistency**:
- Both panels use identical color scales (0.0–0.6, red = high intensity).
- Red/yellow gradients align with intensity values across both visualizations.
2. **Parameter Impact**:
- Positive K₁ (+0.035t) and negative K₁ (-0.035t) produce nearly identical spatial patterns.
- Symmetry in intensity distribution suggests K₁ magnitude (not sign) drives the observed trends.
3. **Directionality**:
- Arrows on the `length` axis confirm data flow from left (`-40 nm`) to right (`+40 nm`).
## Notes
- No explicit data table or numerical values provided beyond axis labels and parameter annotations.
- Visualizations emphasize spatial distribution of intensity (likely related to electronic or optical properties) under varying K₁ and E_F conditions.
