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arXiv · 1007.4912

Observation of spontaneous magnetization jump and field-induced irreversibility in Nd5Ge3

Bibekananda Maji·K. G. Suresh·A. K. Nigam
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Abstract

We report the observation of spontaneous and ultra-sharp jumps in the low temperature magnetization isotherms of polycrystalline Nd5Ge3. Field-induced and ultra-sharp jumps are also seen in resistivity and heat capacity data. These jumps are accompanied by field-induced irreversibilities. The consistency seen in these three data clearly shows that the spin, electronic and lattice states are strongly coupled. Time-induced growth of the ferromagnetic phase is observed at a constant field and temperature, implying the metastability of the magnetic phase in the low field region. Various experimental findings point towards a strong field-induced magneto-structural irreversibility in this compound.

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Bibekananda Maji, K. G. Suresh, A. K. Nigam. 2010-07-28. Observation of spontaneous magnetization jump and field-induced irreversibility in Nd5Ge3. https://doi.org/10.1209/0295-5075%2F91%2F37007

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