Metamagnetic Transition in NdB₆ with a Small Magnetic Anisotropy in Low Magnetic Fields

抄録

The high-field magnetization measurement of the antiferro (AF) magnetic compound NdB₆, which has a small magnetic anisotropy in low magnetic fields, revealed an unexpected metamagnetic transition. This is observed only for H// ‹ 111 ›, while the magnetization curve for H// ‹ 100 › and ‹ 110 › is normal, as usually observed in an AF magnet with a small magnetic anisotropy. To our knowledge, this is the first example of the anisotropic magnetic field induced metamagnetic transition for a compound with a small magnetic anisotropy in low magnetic fields.