An Inexpensive Route to Synthesize High-Purity CrO_𝟐 for EMI Shielding in X-Band Frequencies

Table 1

Comparisons of relevant physical parameters as exhibited by our sample to that are reported in literatures.

Sample	Parameters	Reported values	Our values
CrO2 (Rod  shaped)	Structure (tetragonal)	a = 4.420 Å [15]	a = 4.421 Å
	Lattice parameters	c = 2.915 Å	c = 2.913 Å
	Magnetization (emu/g)	127–135 (at 5 K)	136 (at 80 K)
	Curie temperature (Tc)	114 K [6]	118 K
	Shielding effectiveness	Not reported	SEA = 20 dB
			SER = 10 dB