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| Home > Publications database > Spin dynamics study and experimental realization of tunable single-ion anisotropy in multiferroic Ba 2 CoGe 2 O 7 under external magnetic fields > print |
| Home > Publications database > Spin dynamics study and experimental realization of tunable single-ion anisotropy in multiferroic Ba 2 CoGe 2 O 7 under external magnetic fields > print |
| 001 | 894442 | ||
| 005 | 20210930133538.0 | ||
| 024 | 7 | _ | |a 10.1103/PhysRevB.104.L020403 |2 doi |
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| 100 | 1 | _ | |a Dutta, Rajesh |0 P:(DE-HGF)0 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Spin dynamics study and experimental realization of tunable single-ion anisotropy in multiferroic Ba 2 CoGe 2 O 7 under external magnetic fields |
| 260 | _ | _ | |a Woodbury, NY |c 2021 |b Inst. |
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| 520 | _ | _ | |a We report a spin-wave study on multiferroic Ba2CoGe2O7 under magnetic fields up to 12 T using low-energyinelastic neutron scattering. In-plane transverse (T1) spin-wave modes are highly dispersive along (h00) andrather flat but strong in intensity along (30l). In addition, two dispersive electromagnon modes have beenobserved around 3.5 meV. Dispersion of the out-of-plane transverse modes (T2) under fields reveals that thesingle-ion anisotropy constant decreases with increasing magnetic field, which is consistent with the linearspin-wave theory. Our results imply that the field-dependent single-ion anisotropy plays a crucial role indetermining the characteristics of T2 and electromagnon modes in the three-dimensional anisotropic spin-wavespectrum. |
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| 700 | 1 | _ | |a Taguchi, Yasujiro |0 0000-0003-1896-699X |b 6 |
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| 773 | _ | _ | |a 10.1103/PhysRevB.104.L020403 |g Vol. 104, no. 2, p. L020403 |0 PERI:(DE-600)2844160-6 |n 2 |p L020403 |t Physical review / B |v 104 |y 2021 |x 2469-9969 |
| 856 | 4 | _ | |y OpenAccess |u https://juser.fz-juelich.de/record/894442/files/PhysRevB.104.L020403.pdf |
| 856 | 4 | _ | |y OpenAccess |u https://juser.fz-juelich.de/record/894442/files/dutta_spin_dynamics_PRB_RD.pdf |
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