| Autor: |
Blosser, Dominic, Horvatić, Mladen, Bewley, Robert, Gvasaliya, Severian, Zheludev, Andrey |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Phys. Rev. Materials 3, 074410 (2019) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevMaterials.3.074410 |
| Popis: |
The quasi-two-dimensional Heisenberg spin $S=1/2$ dimer system bis(2-amino-5-fluoro-pyridinium) tetrachlorocuprate(II) is studied by means of inelastic neutron scattering, calorimetry and nuclear magnetic resonance (NMR) experiments. In the absence of an applied magnetic field we find dispersive triplet excitations with a spin gap of $\Delta=1.112(15)$ meV and a bandwidth of $0.715(15)$ meV within the layers and $0.116(15)$ meV between the layers, respectively. In an applied magnetic field of $\mu_0H_c\approx 8.5$ T the spin gap is closed and we find a field induced antiferromagnetically ordered phase. |
| Databáze: |
arXiv |
| Externí odkaz: |
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