Table 1 Parameters extracted by fitting the field dependence of the magnetostriction up to 9 T at 200 K for two samples

From: Magnetostriction, piezomagnetism and domain nucleation in a Kagome antiferromagnet

Sample

\({\epsilon }_{x}^{x}\)

\({\epsilon }_{x}^{y}\)

\({\epsilon }_{y}^{y}\)

\({\epsilon }_{y}^{x}\)

 

al

aq

al

aq

al

aq

al

aq

#1

-1.949

-0.0015

0.612

0.0004

-2.244

0.0156

1.091

0.0012

#2

-1.297

0.007

1.105

-0.0095

-1.174

-0.0092

1.021

-0.0252

  1. The fitting parameters al and aq were obtained by fitting the data to ϵ = alB + aqB2. The units of al and aq are  × 10−5 T−1 and  × 10−5 T−2, respectively. The linear magnetostriction, Λ corresponds to al. One can see it totally dominates the quadratic term, even at the order of 10 T, al ≫ aq × B.
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