Abstract
We investigate the anisotropic spin motive force in α-(BEDT-TTF)2I3, which is a multi-layered massless Dirac fermion system under pressure. Assuming the interlayer antiferromagnetic interaction and the interlayer anisotropic ferromagnetic interaction, we numerically examine the spin ordered state of the ground state using the steepest descent method. The anisotropic interaction leads to the anisotropic spin ordered state. We calculate the spin motive force produced by the anisotropic spin texture. The result quantitatively agrees with the experiment.
Highlights
An organic conductor α-(BEDT-TTF)2 I3 is a multi-layered massless Dirac fermion system, in which conduction layers of BEDT-TTF molecules and I3 anions stack alternatively
We show that anisotropic spin ordered states are realized in α-(BEDT-TTF)2 I3 because of the interlayer anisotropic interaction and anisotropic spin motive forces are produced under magnetic field
We investigate the spin ordered state of the ground state using the steepest descent method
Summary
An organic conductor α-(BEDT-TTF)2 I3 is a multi-layered massless Dirac fermion system, in which conduction layers of BEDT-TTF molecules and I3 anions stack alternatively. The spin motive force produces the voltage. We show that anisotropic spin ordered states are realized in α-(BEDT-TTF)2 I3 because of the interlayer anisotropic interaction and anisotropic spin motive forces are produced under magnetic field. For simplicity, we take a square lattice in x-z plane in this calculation and assume the magnetic field is parallel to the z-axis.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
