Observation of spin-glass behavior in antiperovskite Mn3GaN

Abstract

Articles you may be interested inLow-temperature magnetic behavior of the organic-based magnet Na[FeO6(C10H6N)3] Low Temp. Phys. 40, 649 (2014); 10.1063/1.4887064 Spin glass behavior in A-site ordered YBaMn2O6 compoundThe dc magnetization, ac susceptibility, and isothermal remanent magnetization measurements are carried out for antiperovskite Mn 3 GaN. Strong indication for a frozen state with freeing temperature of T f at ϳ133 K is found, determined from the difference between field-cooled and zero-field-cooled magnetizations. The ac susceptibility measurements show a peak around T f , with the peak position shifting as a function of the driving frequency f and magnetic field H, respectively. Relaxation effects are observed after switching the external magnetic field below T f . These findings consistently demonstrate that Mn 3 GaN exhibits a canonical spin-glass state at low temperature.

Preparation and properties of antiperovskite-type nitrides: InNNi3 and InNCo3

“…Nevertheless, the magnetic properties of InNNi 3 and InNCo 3 are rather complex and additional studies are needed to elucidate the mechanism for their SGL behaviors. Recently, a similar behavior has been observed in an antiperovskite compound GaNMn 3 by Song et al [33]. A variety of magnetic behavior has been reported for GaNMn 3 in the prior literatures [34][35][36][37][38][39].…”

Evidence of exchange bias effect originating from the interaction between antiferromagnetic core and spin glass shell

“…21 The typical range for a SG system is between 0.0045 and 0.08. 22 Dynamical scaling analysis is performed using the relation…”

Spin-glass behavior of Sn0.9Fe3.1N: An experimental and quantum-theoretical study

“…Both nitrides and carbides adopt a simple antiperovskite-like structure in space group Pm3;¯m and feature remarkable properties, such as giant magnetoresistance effect (GMR), 2-4 negative or zero thermal expansion (NTE or ZTE), [5][6][7] nearly zero temperature coefficient of resistance (TCR), 8,9 giant magnetostriction (MS), 10 giant barocaloric effect, 11 spin-glass behavior, [12][13][14][15][16][17][18][19] and phase separation. 20 These properties have been mostly found in Mn-based nitrides (AMn 3 N) [5][6][7][8][9][10][11][12][13][14][15][16] but recent investigations also focused on Ni-, 17 Co-, 17 and Cr- systems, a frustrated system was described for the amorphous binary alloy Fe x Sn 1−x where structural disorder comes together with site disorder. 25 The magnetisms of Ga 0.9 Fe 3.1 N was analyzed by Mössbauer studies and understood as a kind of "cluster magnetism" where 13-atom Fe clusters are incorporated in a metallic gallium sublattice.…”

“…25 The magnetisms of Ga 0.9 Fe 3.1 N was analyzed by Mössbauer studies and understood as a kind of "cluster magnetism" where 13-atom Fe clusters are incorporated in a metallic gallium sublattice. 26,27 Spin-glass behavior has only been found in several Mn-, [12][13][14][15][16] Co-, 17 Ni-, 17 and Cr-18 based ternary nitrides. Up to the present day, however, there are no investigations of spin-glass behavior in A x Fe 4−x N. The only known Fe-based spin glass is the carbide with the reported composition SnFe 3 C that exhibits a static glassy transition temperature of 20.3 K. 19 In the present study, a comprehensive magnetic characterization of Sn 0.9 Fe 3.1 N is carried out.…”