“…We also see that the deformations within the (110) plane (y zplane in figure 1) are different, zz = yy , unlike the XRD results at zero-field, which indicate that they are isotropic, zz = yy . The shear deformations within the (110) plane, yz , cannot be compared with the XRD results; however, they are small, except at 140 K. The reason for the differences found between our values for the strains, obtained under a magnetic field, and the XRD zero-field values can be ascribed to the magnetostriction, which is large due to the strong magnetoelastic coupling in this system [7]. For instance, at 2 T the magnetization ea at 140 K is [111], and the large magnetostriction must be the origin of the large shear strain, yz , obtained at this temperature; as to the non-shear strains, at 40 K, where the magnetization ea is [001] and the magnetostriction is larger, we obtain a high value for the zz strain; whereas at RT the magnetization ea is [110], because at this temperature the magnetostriction is small [7], and the strain yy is not very different from the zero-field value.…”