First order antiferro-ferromagnetic transition in Fe49(Rh0.93Pd0.07)51 under simultaneous application of magnetic field and external pressure

Abstract

The magnetic field-pressure-temperature (H-P-T) phase diagram for first order antiferromagnetic (AFM) to ferromagnetic (FM) transition in Fe49(Rh0.93Pd0.07)51 has been constructed using resistivity measurements under simultaneous application of magnetic field (up to 8 Tesla) and pressure (up to 20 kbar). Temperature dependence of resistivity (ρ-T) shows that with increasing pressure, the width of the transition and the extent of hysteresis decreases whereas with the application of magnetic field it increases. Consistent with existing literature the first order transition temperature (TN) increases with the application of external pressure (~ 7.3 K/ kbar) and decreases with magnetic field (~ - 12.8 K/Tesla). Exploiting these opposing trends, resistivity under simultaneous application of magnetic field and pressure is used to distinguish the relative effect of temperature, magnetic field and pressure on disorder broadened first order transition. For this a set of H and P values are chosen for which TN (H1, P1) = TN (H2, P2). Measurements for such combinations of H and P show that the temperature dependence of resistivity is similar i.e. the broadening (in temperature) of transition as well as extent of hysteresis remains independent of H and P. The transition width decreases exponentially with increasing temperature. Isothermal magnetoresistance measurement under various constant pressure show that even though the critical field required for AFM-FM transition depends on applied pressure, the hysteresis as well as transition width (in magnetic field) both remains independent of pressure, consistent with our conclusions drawn from ρ-T measurements.

10 pages, 6 figures

References in corpus (12)

• Coexisting tuneable fractions of glassy and equilibrium long-range-order phases in manganites
• Field induced magnetic transition and metastability in Co substituted $M{n}_{2}Sb$
• Low temperature study of field induced antiferro-ferromagnetic transition in Pd doped FeRh
• Criticality of tuning in athermal phase transitions
• Influence of magnetic field on paramagnetic-ferromagnetic transition in La${}_{1-x}$Ca${}_x$MnO${}_3$ ($x\approx 0.25$) crystal: ultrasonic and transport studies
• Slow Dynamics in Hard Condensed Matter: A Case Study of the Phase Separating System NdNiO${}_3$
• Real Space Visualization of Thermomagnetic Irreversibility within Supercooling and Superheating Spinodals in $M{n}_{1.85}C{o}_{0.15}Sb$ using Scanning Hall Probe Microscopy
• Studies on Magnetic-field induced first-order transitions
• Relating field-induced shift in transition temperature to the kinetics of coexisting phases in magnetic shape memory alloys
• Effect of simultaneous application of field and pressure on magnetic transitions in La${}_{0.5}$Ca${}_{0.5}$MnO${}_3$
• Composition-tuned smeared phase transitions
• Hysteresis in the electronic transport of V2O3 thin films: non-exponential kinetics and range scale of phase coexistence

Cited by in corpus (4)

• Barocaloric and Magnetocaloric Effects in Fe49Rh51
• Room temperature giant baroresistance and magnetoresistance and its tunability in Pd doped FeRh
• Giant negative magnetoresistance and kinetic arrest of first-order ferrimagnetic-antiferomagnetic transition in Ge doped Mn${}_2$Sb
• Electric Field Control of Magnetism of Mn dimer supported on Carbon-doped-h-BN surface