J.A. So Lorentz force is a force exerted on a particular, charged particle, … metal and semiconductor samples. This effect consists in the appearance of an electric field called Hall field EH r, due to the deviation of Hall Effect Measurement in Germanium (Electrical Transport Option) Prof. Richard Averitt, UC San Diego . So this is Hall effect, and it is a very useful phenomenon for semiconductor physics and semiconductor devices, because you can use this phenomenon to determine the type of the semiconductor, carrier concentration, and their mobilities. This post will discuss Hall Effect Principle, its history, theory explanation, applications and mathematical expressions of Hall Effect Principle including calculations for Hall Voltage, Hall Coefficient, Charge Carrier Concentration, Hall Mobility and Magnetic Field Density. So the microscoping mechanism that drives Hall effect … Theory The Hall effect is a galvanomagnetic** effect, which was observed for the first time by E. H. Hall in 1880. Hall Effect Sensors consist basically of a thin piece of rectangular p-type semiconductor material such as gallium arsenide (GaAs), indium antimonide (InSb) or indium arsenide (InAs) passing a continuous current through itself. In 1879 E. H. Hall observed that when an electrical current passes through a sample placed in a magnetic field, a potential proportional to the current and to the magnetic field is developed across the material in a direction perpendicular to both the current and to the magnetic field. The Hall Effect 1 Background In this experiment, the Hall Effect will be used to study some of the physics of charge transport in metal and semiconductor samples. The Hall effect helps us to find the sign of the charge carried. The Hall Effect is used for obtaining information regarding the semiconductor type, the sign of charge carriers, to measure electron or hole concentration and the mobility. Being very simple and straight forward phenomena in physics, Hall effect is a fundamental principle in magnetic field sensing and have many practical applications in our daily life. - The determination of the Hall mobility of the charge carriers in the respective semiconductor. Before coming to the answer. 2.04.7.2 Hall Effect 2.04.7.2.1 Anomalous Hall effect. “An effect when occurring when a current carrying conductor is placed in a magnetic field and orientated so that the field is at right angles to the direction of the current.”This is the Hall effect, named after E. H. Hall who discovered it in 1879.The difference of potential produced is called the Hall … Hall effect arises whenever a magnetic field is applied to a conductor or semiconductor. So this is Hall effect, and it is a very useful phenomenon for semiconductor physics and semiconductor devices, because you can use this phenomenon to determine the type of the semiconductor, carrier concentration, and their mobilities. Hall Effect in Semiconductors In semiconductors, the charge carriers which produce a current when they move may be positively or negatively charged. There by, we can also know whether the material is a conductor, insulator or a semiconductor. The Hall effect is one of the most important effects in the determination of the parameters that characterize from the electrical point of view the semiconductor materials. Hall Effect Principle is one of the most popular theories in magnetic field measurement. In semiconductors, in which the current consists of a movement of positive holes in one direction and electrons in the opposite direction, the sign of the Hall voltage shows which type of charge carrier predominates.