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    Lec 35 - Physics 111: Hall Effect In A Semiconductor

    Physics 111: Hall Effect In A Semiconductor Physics 111 Advanced Laboratory. Professor Sumner Davis This video accompanies the Hall Effect in a Semiconductor Experiment, providing students with an introduction to the theory, apparatus, and procedures. The Hall effect is the phenomenon of a voltage developing across two boundaries in a direction transverse to the current flow in a system of charged particles in a magnetic field owing to the Lorentz force q(v x B). Semiconductors fall in between two extremes, conductors and non-conductors, and their properties require some knowledge of condensed matter physics. The Hall Effect illustrates the Lorentz force v X B. For a doped germanium crystal, you measure the resistivity, concentration of the free carrier, and the Hall coefficient as functions of the temperature. When a current is passed through a sample in the x-direction, the Lorentz force acting on the electric charges moving in a magnetic field B ( in Z) displaces some carriers in the y-direction and causes an internal electric field EH which cancels the Lorentz force in the equilibrium case. You will use the Van der Pauw method of measuring a sample of arbitrary shape for a temperature range from 300K to 77K to 400K. http://advancedlab.org

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    Lec 36 - Physics 111: Soldering Technique

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    Lec 1 - Physics 111: Atomic Physics (ATM) Part 1. Balmer Series

    Lec 2 - Physics 111: Atomic Physics (ATM) Part 2. Zeeman Effect

    Lec 3 - Physics 111: Beta Ray Spectroscopy (BRA)

    Lec 4 - Physics 111: Brownian Motion in Cells (BMC)

    Lec 5 - Physics 111: Instrumentation Section Lab Equipment (BSC)

    Lec 6 - Physics 111: Bubble Chamber (BBC)

    Lec 7 - Physics 111: Carbon Dioxide Laser (CO2)

    Lec 8 - Physics 111: Compton Scattering (COM)

    Lec 9 - Physics 111: Gamma Ray Spectroscopy (GMA)

    Lec 10 - Physics 111: Hall Effect In A Plasma (HAL)

    Lec 11 - Physics 111: Holography (HOL)

    Lec 12 - Physics 111: Introduction to Error Analysis

    Lec 13 - Physics 111: Josephson Junction Effect (JOS)

    Lec 14 - Physics 111: Radiation and Laboratory Safety

    Lec 15 - Physics 111: Laser Safety

    Lec 16 - Physics 111: Atomic Physics (ATM) Theory Lecture ONLY

    Lec 17 - Physics 111: Energy Levels Lecture Part 1

    Lec 18 - Physics 111: Energy Levels Lecture Part 2

    Lec 19 - Physics 111 Light Sources and Detectors Lecture

    Lec 20 - Physics 111: Optical Instruments Lecture

    Lec 21 - Physics 111: Energy Transitions Lecture Series

    Lec 22 - Physics 111: Laser Induced Fluorescence and Raman Scattering (LIF)

    Lec 23 - Physics 111: Low Light Signal Measurements (LLS)

    Lec 24 - Physics 111: Non-Linear Spectroscopy and Magneto-Optics Part 1 (MNO)

    Lec 25 - Physics 111: Non-Linear Spectroscopy and Magneto-Optics Part 2 (MNO)

    Lec 26 - Physics 111: Atom Trapping (MOT)

    Lec 27 - Physics 111: Muon Lifetime (MUO)

    Lec 28 - Physics 111: Non-Linear Dynamics and Chaos (NLD)

    Lec 29 - Physics 111: Nuclear Magnetic Resonance (NMR) Part-1 Continuous Wave

    Lec 30 - Physics 111: Nuclear Magnetic Resonance Part-2 Pulsed NMR

    Lec 31 - Physics 111: Optical Pumping (OPT)

    Lec 32 - Physics 111: How to do an Oral Report

    Lec 33 - Physics 111: Optical Trapping (OTZ)

    Lec 34 - Physics 111: Rutherford Scattering (RUT)

    Lec 36 - Physics 111: Soldering Technique

    Lec 37 - Physics 111: X-Ray Crystallography