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In this paper the authors refer to

transverse susceptibility $\chi_{ \perp}$ [meV $^{−1}$]

I was taught that the magnetic susceptibility is dimensionless.

How do I get $\chi$ in the above units??

dmckee --- ex-moderator kitten
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Pie86
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1 Answers1

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Magnetic susceptibility is a static constant relating the amount of magnetization to the applied magnetic field; it is dimensionless. Transverse susceptibility is a measure of the magnetic response of a material to an alternating field; it is not dimensionless. The transverse susceptibility is often used when talking to the ferromagnetic resonance (like I think they are doing in the paper you cite) of a material.

So the short answer is that MS is dimensionless and TS is not.

AOA
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