Dear Abhishek Kumar please do well to recommend my answer if helpful.

The creation of a specific SPICE (Simulation Program with Integrated Circuit Emphasis) model for a ferroelectric tunnel junction (FTJ) might not be readily available in standard SPICE libraries. Modeling ferroelectric materials and tunnel junction behavior can be complex due to the unique characteristics of these materials.

However, researchers and engineers often develop custom models for specific devices or materials. If you are working with a ferroelectric tunnel junction and need a SPICE model, you might consider the following steps:

1. **Review Existing Literature:**

- Check scientific journals, conference proceedings, and other literature in the field of ferroelectric materials and tunnel junctions. Researchers may have proposed models or provided simulation results for similar devices.

2. **Contact Researchers and Institutions:**

- Reach out to researchers or institutions that specialize in ferroelectric materials or tunnel junctions. They might be willing to share models or provide guidance on creating a SPICE model.

3. **Device Characterization:**

- If you have access to experimental data for your specific ferroelectric tunnel junction, you can perform device characterization and use this data to develop a custom SPICE model. This might involve extracting parameters such as capacitance, resistance, and polarization.

4. **Material Properties:**

- Understand the material properties of your specific ferroelectric material. This includes ferroelectric polarization, dielectric constants, and other relevant parameters. Incorporate these properties into your model.

5. **Custom Model Development:**

- Utilize SPICE-compatible modeling techniques, such as Verilog-A or MAST, to create a custom model that represents the behavior of your ferroelectric tunnel junction. This may involve expressing the polarization switching, tunneling currents, and other phenomena in the model.

6. **SPICE-Compatible Software:**

- Use a SPICE-compatible simulation tool that supports custom device models. Examples include LTspice, HSPICE, or Cadence Virtuoso. These tools allow you to integrate custom models into your simulation environment.

7. **Industry Forums and Communities:**

- Check online forums and communities related to SPICE modeling, ferroelectric materials, or tunnel junctions. Engaging with experts in these forums may provide insights or even existing models.

Remember that developing an accurate SPICE model for a ferroelectric tunnel junction may require a combination of experimental data, material properties, and a good understanding of the device physics. Collaboration with experts in the field can be valuable for obtaining the necessary information and guidance. Additionally, be sure to comply with any intellectual property or usage restrictions associated with the specific ferroelectric material or device you are working with.