Design of compensated ferrimagnetic Heusler alloys for giant tunable exchange bias

Abstract

The discovery of materials with improved functionality can be accelerated by rational material design. Heusler compounds with tunable magnetic sublattices allow to implement this concept to achieve novel magnetic properties. Here, we have designed a family of Heusler alloys with a compensated ferrimagnetic state. In the vicinity of the compensation composition in Mn-Pt-Ga, a giant exchange bias (EB) of more than 3 T and a similarly large coercivity are established. The large exchange anisotropy originates from the exchange interaction between the compensated host and ferrimagnetic clusters that arise from intrinsic anti-site disorder. We demonstrate the applicability of our design concept on a second material, Mn-Fe-Ga, with a magnetic transition above room temperature, exemplifying the universality of the concept and the feasibility of room-temperature applications. Our study points to a new direction for novel magneto-electronic devices. At the same time it suggests a new route for realizing rare-earth free exchange-biased hard magnets, where the second quadrant magnetization can be stabilized by the exchange bias.

arXiv commentFour figures

References in corpus (6)

• Inverse magnetocaloric effect in ferromagnetic Ni-Mn-Sn alloys
• Tunable Multifunctional Topological Insulators in Ternary Heusler Compounds
• Robust isothermal electric switching of interface magnetization: A route to voltage-controlled spintronics
• Large zero-field cooled exchange-bias in bulk Mn2PtGa
• Tetragonal phase of epitaxial room-temperature antiferromagnet CuMnAs
• Looking for Design in Materials Design

Cited by in corpus (58)

• Large anomalous Hall effect driven by non-vanishing Berry curvature in non-collinear antiferromagnetic Mn3Ge
• Discovery of Magnetic Antiskyrmions Beyond Room Temperature in Tetragonal Heusler Materials
• Heusler, Weyl, and Berry
• Realization of multifunctional shape-memory ferromagnets in all-d-metal Heusler phases
• Heusler 4.0: Tunable Materials
• Berry curvature unravelled by the Nernst effect in Mn${}_3$Ge
• How to manipulate magnetic states of antiferromagnets
• Magnetism in tetragonal manganese-rich Heusler compounds
• Tuning the exchange bias on a single atom from 1 mT to 10 T
• Completely compensated ferrimagnetism and sublattice spin crossing in the half-metallic Heusler compound Mn1.5FeV0.5Al
• Exchange biased Anomalous Hall Effect driven by frustration in a magnetic Kagome lattice
• Room temperature two-dimensional antiferromagnetic Weyl semimetal CrO with giant spin-splitting and spin-momentum locked transport
• Anomalous coercivity enhancement with temperature and tunable exchange bias in Gd and Ti co-doped BiFeO${}_3$ multiferroics
• Compensated ferrimagnetic tetragonal Heusler thin films for antiferromagnetic spintronics
• A new decomposition of the Kubo-Bastin formula
• Material Targets for Scaling All Spin Logic
• Anti-site disorder and Berry curvature driven anomalous Hall effect in spin gapless semiconducting Mn2CoAl Heusler compound
• Observation of Topological Hall Effect and Signature of Room Temperature Antiskyrmions in Mn-Ni-Ga D2d Heusler magnets
• Ab initio Studies on Electronic and Magnetic Properties of X${}_2$PtGa (X = Cr, Mn, Fe, Co) Heusler Alloys
• Defect-induced exchange bias in a single SrRuO3 layer
• New highly-anisotropic Rh-based Heusler compound for magnetic recording
• Robust topological Hall effect driven by tunable noncoplanar magnetic state in Mn-Pt-In inverse tetragonal Heusler alloys
• Giant spontaneous exchange bias in an antiperovskite structure driven by a canted triangular magnetic structure
• Hidden spin-texture at topological domain walls drive exchange bias in a Weyl semimetal
• Enhancement of exchange bias in ferromagnetic/antiferromagnetic core-shell nanoparticles through ferromagnetic domain wall formation
• First principles study of the structural phase stability and magnetic order in various structural phases of Mn${}_2$FeGa
• Tunable giant exchange bias in single-phase rare earth-transition metal intermetallics YMn12-xFex with highly homogenous inter-sublattice exchange coupling
• Exchange Bias and Bistable Magneto-Resistance States in Amorphous TbFeCo thin Films
• Effect of chemical and hydrostatic pressure on the coupled magnetostructural transition of Ni-Mn-In Heusler alloys
• Electrical and magnetic properties of thin films of the spin-filter material CrVTiAl
• Micromagnetic Simulation of Amorphous Ferrimagnetic TbFeCo Films with Exchange Coupled Nanophases
• High T${}_C$ ferromagnetic inverse Heusler alloys: A comparative study of Fe${}_2$RhSi and Fe${}_2$RhGe
• Correlation of exchange bias with magneto-structural effects across the compensation temperature of Co(Cr${}_{1-x}$Fe${}_x$)${}_2$O${}_4$ (x = 0.05 and 0.075)
• Configurable antiferromagnetic domains and lateral exchange bias in atomically thin CrPS4
• Epitaxial Integration of a Perpendicularly Magnetized Ferrimagnetic Metal on a Ferroelectric oxide for Electric-Field Control
• Spin Hall effect from hybridized 3$d$-4$p$ orbitals
• Designing compensated magnetic states in tetragonal Mn3Ge-based alloys
• Prediction of a Heusler alloy with switchable metal-to-half-metal behavior
• Coercivity and random interfacial exchange coupling in CoPt/Co films
• Stability of Room Temperature Compensated Half-Metallicity in Cr-based Inverse-Heusler Compounds
• Room Temperature Magnetoresistance and Exchange Bias in "314 - type" Oxygen-Vacancy Ordered SrCo${}_{0.85}$Fe${}_{0.15}$O${}_{2.62}$
• Conventional and inverse magnetocaloric and electrocaloric effects of a mixed spin-(1/2, 1) Heisenberg dimer
• Large structure-dependent room temperature exchange bias in self-assembled BiFeO3 nanoparticles
• Essential aspects of the spontaneous exchange bias effect
• Building unconventional magnetic phases on graphene by H atom manipulation: From altermagnets to Lieb ferrimagnets
• First-principle study on compensated half metallic double perovskite compound $B{a}_{2}PrV{O}_6$
• Coupling between Antiferromagnetic and Spin Glass Orders in the Quasi-One-Dimensional Iron Telluride TaFe${}_{1+x}$Te${}_3$ ($x$=0.25)
• Exchange coupling of a perpendicular ferromagnet to a half-metallic compensated ferrimagnet via a thin hafnium interlayer
• Moderate Magnetic Field Induced Large Exchange Bias Effect in Ferrimagnetic 314-Sr3YCo4O10.5 Material
• Magnetic properties of Nd6Fe13Cu single crystals
• Giant coercivity and enhanced intrinsic anomalous Hall effect at vanishing magnetization in a compensated kagome ferrimagnet
• First-principles insights into all-optical spin switching in the half-metallic Heusler ferrimagnet Mn${}_2$RuGa
• Al${}_2$MnCu: A magnetically ordered member of the Heusler alloy family despite having a valence electron count of 24
• Intra-unitcell cluster-cluster magnetic compensation and large exchange bias in cubic alloys
• Development of half metallicity within mixed magnetic phase of Cu${}_{1-x}$Co${}_x$MnSb alloy
• Room Temperature Ferrimagnetism, Magnetodielectric and Exchange Bias Effect in CoFeRhO${}_4$
• Observation of Exchange Bias in Antiferromagnetic Cr${}_{0.79}$Se due to the Coexistence of Itinerant Weak Ferromagnetism at Low-temperatures
• Effect of Co Substitution on Ferrimagnetic Heusler compound Mn3Ga