Characterization of magnetic phase transitions in PrMn2Ge2 compound investigated by magnetization and hyperfine field measurements | Zendy

B. Bosch-Santos | Zendy; G. A. Cabrera-Pasca | Zendy; R. N. Saxena | Zendy; R. S. Freitas | Zendy; A. W. Carbonari | Zendy

Open Access

Characterization of magnetic phase transitions in PrMn2Ge2 compound investigated by magnetization and hyperfine field measurements

Author(s) -

B. Bosch-Santos,

G. A. Cabrera-Pasca,

R. N. Saxena,

R. S. Freitas,

A. W. Carbonari

Publication year - 2017

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4974025

Subject(s) - magnetization , condensed matter physics , hyperfine structure , antiferromagnetism , magnetic moment , ferromagnetism , brillouin and langevin functions , materials science , chemistry , magnetic field , physics , atomic physics , quantum mechanics

The magnetic properties of PrMn2Ge2 compound have been investigated by perturbed γ−γ angular correlation (PAC) spectroscopy using 111In(111Cd) as probe nuclei as well as by magnetization measurements. This ternary intermetallic compound exhibits different magnetic structures depending on the temperature. The magnetic ordering is mainly associated with the magnetic moment of 3d-Mn sublattice but at low temperatures a magnetic contribution due to ordering of the magnetic moment from 4f-Pr sublattice appears. PAC results with 111Cd probe nuclei at Mn sites show that the temperature dependence of hyperfine field Bhf(T) follows the expected behavior for the host magnetization, which could be fitted by two Brillouin functions, one for antiferromagnetic phase and the other for ferromagnetic phase, associated with the magnetic ordering of Mn ions. Magnetization measurements showed the magnetic behavior due to Mn ions highlighting the antiferromagnetic to ferromagnetic transition around 326 K and an increase in the magnetization around 36 K, which is ascribed to Pr ions ordering

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