Inelastic neutron scattering study of the anisotropic spin chain
Journal Article
·
· Physical Review B
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Eastern Washington Univ., Cheney, WA (United States)
- Wrocław Univ. of Science and Technology (Poland); Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Univ. of Copenhagen (Denmark)
- Univ. of Florida, Gainesville, FL (United States)
[Ni(HF2)(3–Clpyridine)4]BF4 (NBCT) is a one-dimensional, S = 1 spin chain material that shows no magnetic neutron Bragg peaks down to temperatures of 0.1 K. Previous work identified NBCT as being in the Haldane phase and near a quantum phase transition as a function of D/J to the large-D quantum paramagnet phase (QPM), where D is the axial single-ion anisotropy and J is the intrachain superexchange. Herein, inelastic neutron scattering results are presented on partially deuterated, 11B-enriched NBCT polycrystalline samples in zero magnetic field and down to temperatures of 0.3 K. Comparison to density matrix renormalization group calculations yields D/J = 1.51 and a significant rhombic single-ion anisotropy E (E/D ≈ 0.03, E/J ≈ 0.05). Here, these D, J, and E values place NBCT in the large-D QPM phase but precipitously near a quantum phase transition to a long-range ordered phase.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- National Science Foundation; National Science Foundation Cooperative; Polish National Agency of Academic Exchange (NAWA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1606713
- Alternate ID(s):
- OSTI ID: 1606615
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 9 Vol. 101; ISSN 2469-9950; ISSN PRBMDO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
High-pressure inelastic neutron scattering study of the anisotropic S = 1 spin chain [ Ni ( HF 2 ) ( 3 - Clpyradine ) 4 ] B F 4
Combining microscopic and macroscopic probes to untangle the single-ion anisotropy and exchange energies in an quantum antiferromagnet [Combining micro- and macroscopic probes to untangle single-ion and spatial exchange anisotropies in a quantum antiferromagnet]
Journal Article
·
Sun Apr 17 20:00:00 EDT 2022
· Physical Review. B
·
OSTI ID:1864419
Combining microscopic and macroscopic probes to untangle the single-ion anisotropy and exchange energies in an quantum antiferromagnet [Combining micro- and macroscopic probes to untangle single-ion and spatial exchange anisotropies in a quantum antiferromagnet]
Journal Article
·
Wed Apr 19 20:00:00 EDT 2017
· Physical Review B
·
OSTI ID:1373946