Applied Physics (EE) II

PH25C04

Applied Physics (EE) – II

Course Objectives:

• To impart knowledge on physics concepts and explore the potential applications in the field of electrical engineering.

Semiconductor Materials: Intrinsic and Extrinsic Semiconductors, Carrier Concentration- Fermi level, Dependence on carrier-concentration and temperature, Carrier generation and recombination, Carrier transport: diffusion and drift, Hall Effect, Applications, Metal-semiconductor junction (Ohmic and Schottky)

Activities: Determination of Hall coefficient

Dielectrics Materials: Dielectric polarization under static fields - electronic, ionic and dipolar polarizations-internal fields in solid-Clausius-Mossotti equation, Behavior of dielectrics in alternating fields- Application of dielectrics in transformers- Capacitor materials, Ferro and piezo materials- Complex dielectric permittivity- dipolar relaxation- dielectric loss, Applications.

Activities: Measurement of Dielectric Constant of different materials

Magnetic Materials: Magnetic material parameters, Ferromagnetic materials, Ferrites - Soft and Hard magnetic materials, GMR sensors, magnetic disk memories, Principle of magnetic recording, Materials for magnetic data storage.

Activities: Determination of Hysteresis loop for a ferromagnetic material (B-H curve)

Advanced Materials: Thermocouple, bimetals, leads soldering and fuses Materials – their applications

Activities: Virtual demonstration of working of various types of thermocouples.

Weightage: Continuous Assessment: 40%, End Semester Examinations: 60%

Assessment Methodology: Quiz (10%), Assignments (30%), Flipped Class (10%), Internal Examinations (50%)

References:

1. Kasap, S. O. (2007). Principles of electronic materials and devices. McGraw- Hill Education.

2. Callister, W. D., & Rethwisch, D. G. (2014). Materials science and engineering. John Wiley & Sons.

3. Indulkar, C. S., & Thiruvengadam, S. (n.d.). An introduction to electrical engineering materials. S. Chand.

E-Resources:

1. The emergence of spin electronics in data storage -Claude Chappert, Albert Fert and Frédéric Nguyen Van Dau, Nature Publishing Group 2007

2. Hall Effect - https://ssp-amrt.vlabs.ac.in/exp/hall-effect-charge- carrier/simulation.html

3. Magnetic Susceptibility – https://em-amrt.vlabs.ac.in/exp/quinckes-method

4. NPTEL : NOC:Nanophotonics, Plasmonics, and Metamaterials.