5 Suppose you have a sphere of single-crystal cobalt with diameter L. For what values of L would you expectthis to be a single domain particle? Assume the magnetostatic energy of a uniformly magnetized sphere ofvolume V- 4/3T(L/2)° is given by µo M? V.For Co, Ms1400KA/m, К 3 4х 10° J/m3, а —0.25nm and A = 10-18 J.Particles remain single domain when L is less than what value?Hint: Remember that the expression provided in class and in the notes for domain wall energy Ew is given inJ/m2.L (in nm):

Answered: Image /qna-images/answer/197f2a77-63b4-460c-b054-ee2e3ee67274.jpg

Suppose you have a sphere of single-crystal cobalt with diameter L. For what values of L would you expec chis to be a single domain particle? Assume the magnetostatic energy of a uniformly magnetized sphere of volume V = 4/37(L/2)° is given by HoM? V. %3D For Co, M, = 1400KA/m, K 4 × 105 J/m³, a 0.25nm and A = 10¬18 J. Particles remain single domain when L is less than what value? Hint: Remember that the expression provided in class and in the notes for domain wall energy Ew is given J/m².

Suppose you have a sphere of single-crystal cobalt with diameter L. For what values of L would you expec chis to be a single domain particle? Assume the magnetostatic energy of a uniformly magnetized sphere of volume V = 4/37(L/2)° is given by HoM? V. %3D For Co, M, = 1400KA/m, K 4 × 105 J/m³, a 0.25nm and A = 10¬18 J. Particles remain single domain when L is less than what value? Hint: Remember that the expression provided in class and in the notes for domain wall energy Ew is given J/m².