Interplay between the d- and pi-electron systems in magnetic torque of the layered organic conductor \k{appa}-(BETS)2Mn[N(CN)2]3

Abstract

In the organic charge transfer salt k-(BETS)2Mn[N(CN)2]3 the metallic conductivity is provided by itinerant pi-electrons in the layers of BETS molecules, whereas magnetization is largely dominated by the localized d-electrons of the Mn2+ ions in the insulating anionic layers. We study magnetic properties of the compound in its low-temperature, Mott-insulating state by means of magnetic torque technique. The complex behavior of the torque can be qualitatively explained by the coexistence of two weakly interacting magnetic subsystems associated with paramagnetic d-electron spins and antiferromagnetically ordered pi-electron spins, respectively. Based on the experimental data, we determine the principal axes of magnetization of the Mn2+ sublattice and propose a qualitative model for the pi-electron spin arrangement, implying an important role of the Dzyaloshinskii-Moriya interaction.

arXiv comment6 figures, 18 pages. arXiv admin note: text overlap with arXiv:1512.07013

References in corpus (9)

• Superconductivity in an organic insulator at very high magnetic fields
• Magnetic-field-induced superconductivity in layered organic molecular crystals with localized magnetic moments
• ${}^{77}$Se NMR evidence for the Jaccarino-Peter mechanism in the field induced superconductor, $\lambda$(BETS)${}_2$FeCl${}_4$}
• Magnetic Transformations in the Organic Conductor kappa-(BETS)2Mn[N(CN)2]3 at the Metal-Insulator Transition
• Compensation of Effective Field in the Field-Induced Superconductor k-(BETS)2FeBr4 Observed by 77Se NMR
• Staggered Spin Order of Localized pi-electrons in the Insulating State of the Organic Conductor kappa-BETS)2Mn[N(CN)2]3
• Interplay between conducting and magnetic systems in the antiferromagnetic organic superconductor $\kappa$-(BETS)${}_2$FeBr${}_4$
• Shubnikov-de Haas oscillations and electronic correlations in the layered organic metal $\kappa$-(BETS)${}_2$Mn[N(CN)${}_2$]${}_3$
• Resistive properties and phase diagram of the organic antiferromagnetic metal $\kappa$-(BETS)${}_2$FeCl${}_4$

Cited by in corpus (5)

• Ingredients for Generalized Models of $\kappa$-Phase Organic Charge-Transfer Salts: A Review
• Spin Vortex Crystal Order in Organic Triangular Lattice Compound
• Fermi surface properties of the bifunctional organic metal $\kappa$-(BETS)${}_2$Mn[N(CN)${}_2$]${}_3$ near the metal--insulator transition
• Electronic properties of the dimerized organic conductor $\kappa$-(BETS)${}_2$Mn[N(CN)${}_2$]${}_3$
• ESR Investigations of the Magnetic Anisotropy in $\kappa$-(BETS)${}_2$Mn[N(CN)${}_2$]${}_3$