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Spin absorption of solids


Cheng, Hung (1962) Spin absorption of solids. Dissertation (Ph.D.), California Institute of Technology.


A study of the spin absorption lines of all orders was made. Rules for obtaining the absorption opera tor of any line were found, and a generalization of the method of moments was obtained. With magnetic dipole-dipole and exchange interactions taken into account, and with the assumption that the Zeeman energy is dominant, the zeroth and the second moments of the following four lines were evaluated without approximations for powders: (1) first Larmor line, parallel field, ( 2) second Larmor line, parallel field, (3) second Larmor line, perpendicular field, (4) low frequency line, perpendicular field. The contribution of exchange to the second moment was found to be the same for the four cases treated, while the total intensity has the ratio 1: 1: 1: 3/2. Agreement with existing experimental data is good.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Physics
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Davis, Leverett (advisor)
  • McConnell, Harden M. (co-advisor)
  • Mathews, Jon (co-advisor)
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1962
Record Number:CaltechTHESIS:07262011-090625292
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6545
Deposited By: Benjamin Perez
Deposited On:26 Jul 2011 16:57
Last Modified:26 Dec 2012 04:37

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