Communications from the Kamerlingh Onnes Laboratory of the University of Leiden Volume 3, No. 25 - V. 4, No. 48

Communications from the Kamerlingh Onnes Laboratory of the University of Leiden Volume 3, No. 25 - V. 4, No. 48

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1899 edition. Excerpt: ...numbers is satisfactory, if the unevitable errors of observation are taken into account. 4. Also with this method of observation sometimes different values for the resistance before and after the reversing of the field were obtained. The inquiry into the cause of this phenomenon is related in the next communication. From the experiments mentioned in 1 and 3 we may however conclude, that a different increase of resistance in the magnetic field really exists for different directions in crystalline bismuth. ') In this determination a rather large error may occur, as the distance between the electrodes was only 6 mM. Dr. E. VAN EVERDINGEN Jr. On the relation between the crystallographic directions and the resistance, the magnetic increase of resistance and the RALL-effect in bismuth. 1. The researches published in the preceding communication induced me to put to myself the question, in what manner the coefficient of magnetic increase of resistance in a fixed plane is related to the position of this plane and the direction of the magnetic force with respect to the crystallographic axis of bismuth. During closer inquiry also the question rose, in what manner the HALL-coefficient is related to the same direction. The answer to these questions is given in 8. Let me describe the course of experiments in close connection with the former communication. 'i. The increase of resistance in the magnetic field being determined for the little bars, mentioned in the latter part of the former communication, the same experiments were repeated with a bar, cut from the same crystalline piece in a direction J_ the former two and _L the principal cleavage-plane. It appeared, not only that this bar had a greater specific resistance, but also that it...
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Product details

  • Paperback | 70 pages
  • 189 x 246 x 4mm | 141g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236649931
  • 9781236649935