Low-temperature study of field-induced antiferromagnetic-ferromagnetic transition in Pd-doped Fe-Rh

  title={Low-temperature study of field-induced antiferromagnetic-ferromagnetic transition in Pd-doped Fe-Rh},
  author={Pallavi Kushwaha and Archana Lakhani and Rajeev Rawat and Praveen Chaddah},
  journal={Physical Review B},
The first-order antiferromagnetic (AFM) to ferromagnetic (FM) transition in the functional material ${\text{Fe}}_{49}{({\text{Rh}}_{0.93}{\text{Pd}}_{0.07})}_{51}$ has been studied at low temperatures and high magnetic fields. We have addressed the nonmonotonic variation in lower critical field required for FM to AFM transition. It is shown that critically slow dynamics of the transition dominates below 50 K. At low temperature and high magnetic field, state of the system depends on the… 

Figures from this paper

Giant negative magnetoresistance and kinetic arrest of first-order ferrimagnetic-antiferromagnetic transition in Ge doped Mn 2Sb
The effect of partial substitution of Ge for Sb on the first-order ferrimagnetic (FRI)–antiferromagnetic (AFM) transition in Mn 2Sb has been studied. It shows that the transition temperature (T t)
Tunable resistivity due to kinetic arrest of antiferro-ferromagnetic transition in FeRh0.46Pd0.54
We show a large negative magnetoresistance (MR) of ≈10% near room temperature in FeRh0.46Pd0.54, which increases to more than 60% at low temperatures. The magnitude of resistivity and, hence, MR
First-order antiferro–ferromagnetic transition in Fe49(Rh0.93Pd0.07)51 under simultaneous application of magnetic field and external pressure
Isothermal magnetoresistance measurements under various constant pressures show that even though the critical field required for AFM-FM transition depends on applied pressure, the extent of hysteresis as well as transition width remains constant with varying pressure.
Glassy dynamics in magnetization across the first order ferromagnetic to antiferromagnetic transition in Fe0.955Ni0.045Rh
In the intermediate temperature regime, the magnetic relaxation can be explained as a combination of both the power law and stretched exponential, which is indicative of glassy dynamics or the arrest of the kinetics of the phase transition.
Self-consistent local mean-field theory for phase transitions and magnetic properties of FeRh
FeRh has a phase transition from an antiferromagnetic state (low temperature) to a ferromagnetic state (high temperature) at 360 K. Various explanations for this behavior have been proposed over the
A first-order magnetic phase transition near 15 K with novel magnetic-field-induced effects in Er5Si3
It thus appears that this compound is characterized by interesting magnetic anomalies in the temperature-magnetic-field phase diagram, indicating novel magnetic phase coexistence phenomenon.


Relating supercooling and glass-like arrest of kinetics for phase separated systems: Doped CeFe 2 and (La,Pr,Ca)MnO 3
Coexisting ferromagnetic and antiferromagnetic phases over a range of temperature as well as magnetic field have been reported in many materials of current interest, showing disorder-broadened
Pressure Dependence of the Magnetic Transitions in Fe-Rh Alloys
The pressure coefficients of the Curie temperature $\ensuremath{\theta}$ and the first-order transition temperature ${T}_{0}$ have been measured for two binary and three ternary alloys containing Fe
Temperature and field hysteresis of the antiferromagnetic-to-ferromagnetic phase transition in epitaxial FeRh films
The temperature and field hysteresis of the magnetization in the first order antiferromagnetic to ferromagnetic phase transition in FeRh films grown onto $c$-axis sapphire and MgO (001) are
Magnetization reversal via perpendicular exchange spring inFePt∕FeRhbilayer films
We present a theoretical analysis of the magnetization reversal process in a bi-layer structure with hard and soft (with metamagnetic transition) magnetic layers on an example of an
Model of Exchange-Inversion Magnetization
A thermodynamic theory is given of a class of magnetic crystals which transform from ferromagnetic to antiferromagnetic states as the temperature is varied. Applications are suggested to
Metastability in the ferrimagnetic–antiferromagnetic phase transition in Co substituted Mn2Sb
A detailed investigation of the first-order ferrimagnetic (FRI) to antiferromagnetic (AFM) transition in Mn1.85Co0.15Sb is carried out. These measurements demonstrate anomalous thermomagnetic
Anomalous first-order transition in Nd0.5Sr0.5MnO3: an interplay between kinetic arrest and thermodynamic transitions
A detailed investigation of the first-order antiferromagnetic insulator (AFI) to ferromagnetic metal (FMM) transition in Nd0.5Sr0.5MnO3 is carried out by resistivity and magnetization measurements.
Effects of Mechanical and Thermal Treatment on the Structure and Magnetic Transitions in FeRh
Well‐annealed bulk samples of the intermetallic compound FeRh exhibit a first‐order transition from antiferromagnetic to ferromagnetic order on heating near 330°K. Plastic deformation has been found
Ellipsometric studies of magnetic phase transitions of Fe-Rh alloys.
  • Chen, Lynch
  • Materials Science, Physics
    Physical review. B, Condensed matter
  • 1988
Results show that the band structure of Fe-Rh is not drastically affected as the antiferromagnetic-ferromagnetic phase transition occurs and is less affected than band-structure calculations indicate.
Conversion of a glassy antiferromagnetic-insulating phase to an equilibrium ferromagnetic-metallic phase by devitrification and recrystallization in Al substituted Pr0.5Ca0.5MnO3
It is shown from specially designed measurement protocols that the AF-I phase of PCMAO has all the characteristics of magnetic glassy states and shows a similar intriguing feature observed in FM-M magneticGlassy state of LCMO, that when the starting coexisting fraction of glass is larger, successive annealing results in a larger fraction of the equilibrium phase.