## Line Graphs: Average T and E in the CMO Layer ### Overview The image contains two line graphs labeled **a** and **b**, depicting the relationship between voltage (V) and two physical properties in the CMO layer: - **Graph a**: Average temperature (T) in Kelvin (K). - **Graph b**: Average electric field (E) in volts per meter (V/m). Both graphs compare two datasets: **LRS** (Low Resistance State, red) and **HRS** (High Resistance State, blue). The x-axis spans voltage values from **-1.0 V to 0.9 V**, while the y-axes vary by property (temperature and electric field). --- ### Components/Axes #### Graph a (Temperature) - **X-axis**: Voltage [V], ranging from **-1.0 V to 0.9 V** in increments of 0.1 V. - **Y-axis**: Temperature [K], ranging from **293 K to 500 K** in increments of 50 K. - **Legend**: Located in the **top-right corner**, with: - **Red line**: LRS (Low Resistance State). - **Blue line**: HRS (High Resistance State). #### Graph b (Electric Field) - **X-axis**: Voltage [V], identical to Graph a. - **Y-axis**: Electric Field [V/m], logarithmic scale from **10⁷ to 10⁸ V/m** in increments of 10⁷ V/m. - **Legend**: Same as Graph a (top-right corner). --- ### Detailed Analysis #### Graph a (Temperature) - **LRS (Red Line)**: - Starts at **500 K** at **-1.0 V**. - Decreases sharply to **~293 K** at **0.0 V**. - Slightly increases to **~300 K** at **0.9 V**. - **HRS (Blue Line)**: - Remains flat at **~293 K** from **-1.0 V to 0.0 V**. - Rises sharply to **~350 K** at **0.9 V**. #### Graph b (Electric Field) - **LRS (Red Line)**: - Starts at **10⁸ V/m** at **-1.0 V**. - Drops sharply to **10⁷ V/m** at **0.0 V**. - Rises sharply to **10⁸ V/m** at **0.9 V** (V-shaped curve). - **HRS (Blue Line)**: - Remains flat at **10⁷ V/m** from **-1.0 V to 0.0 V**. - Rises sharply to **10⁸ V/m** at **0.9 V**. --- ### Key Observations 1. **Temperature Trends**: - LRS exhibits a **nonlinear response** to voltage, with a steep drop near 0 V followed by a minor increase. - HRS remains thermally stable until **0.9 V**, where it abruptly increases. 2. **Electric Field Trends**: - LRS shows a **V-shaped hysteresis**, with opposing electric field magnitudes at ±1.0 V and 0.9 V. - HRS demonstrates a **threshold behavior**, with no field until 0.9 V. 3. **Symmetry**: - Both graphs share identical voltage ranges and legend placement, suggesting a direct comparison of LRS/HRS behavior. --- ### Interpretation The data suggests that the CMO layer exhibits **distinct resistive and thermal responses** depending on its state (LRS vs. HRS): - **LRS**: - High initial temperature and electric field at negative voltages, dropping sharply at 0 V. This could indicate a phase transition or breakdown mechanism. - The V-shaped electric field implies **bipolar conduction** or domain wall motion under reverse bias. - **HRS**: - Thermal and electrical stability until a critical voltage (0.9 V), after which both properties surge. This may reflect a **threshold switching mechanism** common in resistive memory devices. The divergence in LRS/HRS behavior highlights the importance of material microstructure (e.g., grain boundaries, oxygen vacancies) in determining device performance. The logarithmic scale in Graph b emphasizes the **orders-of-magnitude difference** in electric field sensitivity between states. --- ### Notes on Data Extraction - All values are approximate, derived from visual interpolation of the plotted lines. - No textual data tables or additional categories are present. - Legends are consistently positioned in the **top-right corner** for both graphs.