PPT-DEPARTMENT OF PHYSICS MAGNETIC MATERIALS

BY SMT RADHA V K ASSTPROFESSOR DEPARTMENT OF PHYSICS N V DEGREE COLLEGE KALABURGI NVARTSSRI KANHAYALALMALUSCIENCEDR PANDURANGRAO PATKI COLLEGE OF COMMERCEKALABURGI TOPICS TO BE COVERED. In addition magnetic fields create a force only on moving charges The direction the magnetic field produced by a moving charge is perpendicular to the direction of motion The direction of the force due to a magnetic field is perpendicular to the dir RESONANCE. . RAJAN PANDYA & MOHIT GANGULY. Magnetic Resonance Imaging. Provide high resolution anatomic structure (as with X-ray CT). Provide . high contrast between different soft tissues (X-ray CT cannot). … force in . direction. … . sample volume. … magnetic . susceptibility. … magnetic field. … gradient of . the magnetic . field.  . The magnetic susceptibility . characterizes the magnetic properties of materials. Often cheap relative to other geophysical techniques.. Can be measured with ground-based or airborne equipment.. Not usually very useful when looking at sedimentary structures. (We’ll see why later!). … force in . direction. … . sample volume. … magnetic . susceptibility. … magnetic field. … gradient of . the magnetic . field.  . The magnetic susceptibility . characterizes the magnetic properties of materials. Copyright © John Wiley and Sons, Inc.. . Chapter 8 – Materials Science. Invaluable high-tech contributions. Modern Devices: . The Simple Physics of Sophisticated. . Technology. b. y. Charles L. Joseph and Santiago Bernal. Walter . Muruet. Kaitlin Wilcoxen. Overview. History. Physics. Physiology. History. History. A Brief History of MRI. In 1882 Nikola Tesla discovered the Rotating Magnetic Field. In 1937 Professor . Isidor. BJECTIVE. To develop more efficient and cost-effective small-scale H. 2. liquefiers as an alternative to vapour-compression cycles using . magnetic. . refrigeration. (adiabatic magnetization).. Magnets attract objects made of magnetic materials. Magnetic materials include the elements . iron, nickel, cobalt, . alloys containing some of these such as . steel . and some of their compounds.. stainless steel. . RAJAN PANDYA & MOHIT GANGULY. Magnetic Resonance Imaging. Provide high resolution anatomic structure (as with X-ray CT). Provide . high contrast between different soft tissues (X-ray CT cannot). Magnetic refrigeration is a cooling technology based on the magneto caloric effect. .. Invented by Emil Warburg in . 1880. Used to attain cryogenic temperatures well below 1. o. K with the help of magnetic fields. Mn. x. O. y. /Ni. 80. Fe. ­20. bilayers through additional O. +.   implantation. Ji Zhang. . a,b. ,. , Grace L. Causer . b,c. , Xinzhi Liu. . b,d. , Mihail Ionescu. . b. ,, Ko-Wei Lin. . e. . Magnetic . Energy. . once an ancient mystery, is now recognized as the strongest natural force in the universe. . . Our Earth. . is a giant magnet and all life developed under the influence of the earth’s magnetic field. . My current research includes . Photonics, Optics, Electronics, Sensing, Nano- and microscale devices, Correlation between chemical, magnetic, electrical and optical . signals.. Condensed . matter . physics.