Nd₂Fe₁₄B and Pr₂Fe₁₄B

November 2006

Kerr imaging of the domain structure transformation in Nd₂Fe₁₄B

WARMING

COOLING

Faraday imaging of the domain structure transformation in Nd₂Fe₁₄B (cooling)

WARMING

COOLING

Magnetic induction on the sample surface below and above the transition

The taller the structure, the higher B.

Room-temperature domain structure and 2D FFT

Fine domain structure at the room temperature

Pr₂Fe₁₄B has similar (but not identical) domain structure at room temperature (but the characteristic domain size is smaller than in Nd ₂Fe₁₄B).

Most importantly, - Pr₂Fe₁₄B does NOT show re-orientation transition at any temperature.

Below are three different magnifications:

Updated: December 17, 2006 12:38 PM

by Ruslan Prozorov (e-mail)