Table 4.

RPI Parameters for Different Types of SD Remanence Carriers Made of n SD Crystals With Mean Magnetic Moment m _SD

SD configuration	NRM $m_0/m_{\text{SD}}$	IRM $m_{\text{IRM}}/m_{\text{SD}}$	ARM $m_{\text{ARM}}/r_{\mathrm{a}}{m}_{\text{SD}}$	R (IRM) $m_0^2/m_{\text{IRM}}$	R (ARM) $r_{\mathrm{a}}{m}_0^2/m_{\text{ARM}}$
Silicate inclusions	$\sim 0.9\sqrt{n}$	$\sim 0.5n$	$\sim 0.9\sqrt{n}$	$\sim 1.7$	$\sim 0.9\sqrt{n}$
Single‐stranded chains	$n$	$0.5n$	$n$	$2n$	$n$
Double‐stranded chains	$n$	$0.5n$	$\delta n$	$2n$	$n^2/\delta n$
Fold‐collapsed chains	$\delta n$	$0.5n$	$\delta n$	$2\delta n^2/n$	$\delta n$

Note. Other symbols: m ₀—native magnetic moment, m _IRM—magnetic moment after IRM acquisition, m _ARM—magnetic moment after ARM acquisition, r _a—ARM/IRM of isolated SD crystals, δn—number of magnetosomes with uncompensated magnetic moment in the FC configuration of double‐stranded and fold‐collapsed chains.