Magnetic behavior of LaMn2(Si(1−x)Gex)2 compounds characterized by magnetic hyperfine field measurements

Abstract

Investigation of the magnetic hyperfine field at R and Zn sites in RZn (R = Gd, Tb, Dy) compounds using perturbed gamma-gamma angular correlation spectroscopy with 140Ce and 111Cd as probe nuclei

The magnetic behavior of the intermetallic compound NdMn2Ge2 studied by magnetization and hyperfine interactions measurements

“…P eff ¼ 3.5 l B obtained for LaMn 2 Ge 2 . 8 Based on previous results, 12,14 it is assumed that 111 Cd probe nuclei replace the Mn atoms in the observed major fraction. This assumption is also supported by the small value of Q as expected at the Mn position, which is much lower than those at Nd or Ge positions.…”

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

“…This assumption is based on the consideration of higher chemical affinity of 111 In for Mn rather than for Pr or Ge atoms as well as on the results of previous study. 8,14 Fig. 3 shows results for magnetization and for the magnetic hyperfine field at 111 Cd probe nuclei in a wide range of temperature in the PrMn 2 Ge 2 intermetallic compound.…”

“…PAC measurements in this compound also allowed to identify and characterize magnetic phase transitions. 8,12 The other part of sample, was used for magnetization measurements. The equipment used was a commercial Vibrating Sample Magnetometer (PPMS, QD) with an applied magnetic field of 100 Oe.…”

“…For example in the study of LaMn 2 Si 2 (Ge 2 ) compounds by PAC spectroscopy with 140 Ce probe defined the ferromagnetic transition while PAC measurements with 111 Cd probe defined the antiferromagnetic transition. 8,9 In this work we have investigated the magnetic behavior of intermetallic compound PrMn 2 Ge 2 using magnetization measurements and measurements of the magnetic hyperfine field (B hf ) using the perturbed γ−γ angular correlation (PAC) spectroscopy. Magnetization measurements were performed to characterize the magnetic behavior of host.…”

Magnetic phase diagram of the solid solution LaMn2(Ge1-xSix)2 (0 ≤ x ≤ 1) unraveled by powder neutron diffraction

“…[11,[28][29][30] The ternaries LaMn 2 X 2 (X = Si, Ge) both exhibit magnetic structures with ferromagnetic inter-layer coupling. Adopting the nomenclature commonly used in the literature (the detailed description follows below), [11,[28][29][30][31][32] LaMn 2 Si 2 exhibits a magnetic structure referred to as antiferromagnetic layers (AFl) below 470 K [15,33,34] and undergoes a transition to the ferromagnetic mixed commensurate (Fmc) structure at 310 K on cooling. [15,34,35] Additional incommensurate modulation peaks were observed below 40 K and remain down to low temperatures, which was interpreted as co-existence of the ferromagnetic mixed incommensurate (Fmi) and ferromagnetic mixed commensurate (Fmc) structures.…”