An Introduction to Thermal Physics
An Introduction to Thermal Physics
1st Edition
ISBN: 9780201380279
Author: Daniel V. Schroeder
Publisher: Addison Wesley
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Chapter 7.5, Problem 64P

(a)

To determine

To prove the number of magnons per unit volume in a three-dimensional ferromagnet is given by

  NmV=2π( 2 m * kT h 2 )3/20xex1dx

(b)

To determine

To find the fractional reduction in magnetization and write it in form of (T T 0 )3/2 and estimate value of T0 for iron.

(c)

To determine

The value of heat capacity due to magnetic excitations in ferromagnet. Estimate the value for iron and compare it with magnon and phonon contributions.

(d)

To determine

To show the total number of magnons diverges in case of two dimensional arrays at low temperature.

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