Evidence for an Antiferromagnetic-Ferrimagnetic Transition in Cr-ModifiedMn2Sb

Tuning the giant inverse magnetocaloric effect in Mn2−xCrxSb compounds

“…Therefore, below a critical distance between adjacent Mn II layers, due to the Pauli exclusion principle, the interlayer exchange interactions must change sign and become antiferromagnetic with a ↿⇂↿ configuration, in a phenomenon known as exchange inversion 10 . The transition from the ferri to the antiferromagnetic state is accompanied by the rotation of the moments from the direction parallel to that perpendicular to the tetragonal axis.…”

Metamagnetic behaviour and effect of field cooling on sharp magnetization jumps in multiferroic Y 2 CoMnO 6

“…[9][10][11]. Recently, metamagnetic behaviour has also been reported in some of the well known multiferroic systems such as BiFeO 3 and phase separated multiferroic Eu 1-x Y x MnO 3 (x=0.2, 0.25) systems; interestingly, a coupling between metamagnetic behaviour and ferroelectric polarization with the external magnetic field has been noticed [12][13][14]. Though the exact origin of this effect is unclear, several mechanisms have been proposed in different systems, such as the field dependent orbital ordering in Pr 0.5 Ca 0.5 Mn 0.95 Co 0.05 O 3 [15], martensitic like transformation associated with interface strains in phase separated systems [9][10][11]16], spin quantum transition in Pr 5/8 Ca 3/8 MnO 3 [17], geometric frustration in garnets [18], spin reorientation in FeRh thin films [2] and magnetic field induced spin flop transition in Ca 3 CoMnO 6 [19].…”

“…Recently, metamagnetic phase transition has been received a renewed research interest because of its presence in diversified complex magnetic systems. This phenomenon is manifested by sharp jumps in the magnetization with external perturbations like magnetic field [1], temperature [2][3][4] and pressure [5]. Technological significance is high when the sharp jumps in magnetization are also associated by abrupt changes in other functional properties like, magnetocaloric, magnetostriction and magnetoresistance [6,7].…”

The baric coefficient of resistance of Mn1.9Cr0.1Sb as measured by the double AC method

“…In that case, the first appearance of the other phase might be important for the design of a baroor magnetocaloric cycle. Mn 2−x Cr x Sb undergoes itinerant metamagnetic ferrimagnetic (Fr) to antiferromagnetic (AF) transition on cooling accompanied by significant change of the unit cell volume, electrical resistance, local Mn magnetic moment [5][6][7][8][9][10][11][12][13]. Thus, in this contribution we depict first data on Mn 2−x Cr x Sb, which has been considered to be a candidate for magnetocaloric cooling [3,14], in particular as some samples show only a very small thermal hysteresis together with reasonable entropy steps, …”