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Table 1 Summary of the various blocking temperatures, magnetic remanence, and coercivities gained by filling of SiNTs with iron oxide NPs of different sizes

From: Magnetic properties of superparamagnetic nanoparticles loaded into silicon nanotubes

 

NP size

4 nm

10 nm

TB (K)

  

 10-nm shell SiNTs

12

45/160

 70-nm shell SiNTs

12

30/125/160

70-nm shell SiNTs, remanence MR (emu)

  

T = 4 K

0.75 × 10-4

0.55 × 10-4

T = 300 K

0.01 × 10-4

0.01 × 10-4

70-nm shell SiNTs, coercivity HC (Oe)

  

T = 4 K

200

220

T = 300 K

50

60

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