# Technical Data Extraction: Conductance vs. Twisting Angle in $MoSe_2$ and $WSe_2$
This document provides a comprehensive extraction of data from two side-by-side line charts illustrating the relationship between twisting angle ($\theta$) and conductance ($G$) for two different materials.
## 1. General Metadata
* **Language:** English
* **Image Type:** Scientific Data Plots (Line charts with markers)
* **Common Y-Axis:** $G$ ($e^2/h$) - Conductance in units of the conductance quantum.
* **Common X-Axis:** twisting ($\theta$ in $^\circ$) - Twisting angle in degrees.
* **Common Legend:**
* **Blue Circles ($K_1$):** Represent data series for $K_1$.
* **Red Squares ($K_2$):** Represent data series for $K_2$.
* **Line Style:** Dashed black lines connecting markers.
* **Fermi Energy ($E_F$):** Constant at $-0.095$ (meV) for both plots.
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## 2. Plot (b): $MoSe_2, E_F = -0.095$ (meV)
### Component Isolation: Header & Axes
* **Title:** (b) $MoSe_2, E_F = -0.095$ (meV)
* **Y-Axis Range:** $0.00$ to $2.00$ (increments of $0.25$)
* **X-Axis Range:** $0$ to $30$ (increments of $5$)
* **Legend Location:** Right-center $[x \approx 0.8, y \approx 0.5]$
### Trend Analysis
* **Series $K_1$ (Blue Circles):** Starts at a maximum value of $2.0$. It remains stable until $\theta \approx 5^\circ$, then drops sharply to near $0$ at $\theta \approx 10^\circ-14^\circ$. It then exhibits a vertical-like recovery back to $2.0$ at $\theta \approx 15^\circ$ and remains stable at $2.0$ through $30^\circ$.
* **Series $K_2$ (Red Squares):** Remains consistently at $0.0$ for almost the entire range, with a single small peak (upward slope then downward) occurring between $\theta \approx 5^\circ$ and $10^\circ$.
### Data Point Extraction (Approximate)
| Twisting $\theta$ ($^\circ$) | $K_1$ Conductance ($e^2/h$) | $K_2$ Conductance ($e^2/h$) |
| :--- | :--- | :--- |
| 0 | 2.00 | 0.00 |
| 5 | 2.00 | 0.00 |
| 6.5 | 1.60 | 0.25 |
| 9.5 | 0.12 | 0.00 |
| 13.5 | 0.00 | 0.00 |
| 14 | 1.50 | 0.00 |
| 15 | 2.00 | 0.00 |
| 19 | 2.00 | 0.00 |
| 23 | 1.95 | 0.01 |
| 27 | 2.00 | 0.00 |
| 29 | 1.98 | 0.00 |
| 30 | 2.00 | 0.00 |
---
## 3. Plot (d): $WSe_2, E_F = -0.095$ (meV)
### Component Isolation: Header & Axes
* **Title:** (d) $WSe_2, E_F = -0.095$ (meV)
* **Y-Axis Range:** $0.00$ to $2.00$ (increments of $0.25$)
* **X-Axis Range:** $0$ to $30$ (increments of $5$)
* **Legend Location:** Right-center $[x \approx 0.8, y \approx 0.5]$
### Trend Analysis
* **Series $K_1$ (Blue Circles):** Starts at $2.0$. It experiences an extremely sharp drop to $0.0$ at a very low angle ($\theta \approx 1^\circ$). It then slopes upward rapidly, returning to $2.0$ by $\theta \approx 10^\circ$ and maintaining that value (with minor fluctuations) until $30^\circ$.
* **Series $K_2$ (Red Squares):** Shows a flat trend line. The conductance remains at $0.0$ across the entire twisting angle range from $0^\circ$ to $30^\circ$.
### Data Point Extraction (Approximate)
| Twisting $\theta$ ($^\circ$) | $K_1$ Conductance ($e^2/h$) | $K_2$ Conductance ($e^2/h$) |
| :--- | :--- | :--- |
| 0 | 2.00 | 0.00 |
| 1 | 0.00 | 0.00 |
| 5 | 1.72 | 0.00 |
| 6.5 | 1.98 | 0.01 |
| 11 | 2.00 | 0.00 |
| 14 | 1.92 | 0.00 |
| 19 | 1.92 | 0.00 |
| 23 | 2.00 | 0.00 |
| 27 | 2.00 | 0.00 |
| 30 | 2.00 | 0.00 |
---
## 4. Summary of Observations
* **Material Comparison:** $MoSe_2$ shows a "conductance gap" or dip in the $K_1$ channel at a much higher twisting angle ($\approx 10^\circ-14^\circ$) compared to $WSe_2$, where the dip occurs almost immediately ($\approx 1^\circ$).
* **Channel Dominance:** In both materials, the $K_1$ channel (blue) is the primary carrier of conductance, maintaining a value of $2.0$ for most angles, while the $K_2$ channel (red) remains largely suppressed at $0.0$.
