Magnetoelastic coupling through the antiferromagnet-to-ferromagnet transition of quasi-two-dimensional [Cu(HF{sub 2})(pyz){sub 2}]BF{sub 4} using infrared spectroscopy.
Journal Article
·
· Phys. Rev. Lett.
We investigated magnetoelastic coupling through the field-driven transition to the fully polarized magnetic state in quasi-two-dimensional [Cu(HF{sub 2})(pyz){sub 2}]BF{sub 4} by magnetoinfrared spectroscopy. This transition modifies out-of-plane ring distortion and bending vibrational modes of the pyrazine ligand. The extent of these distortions increases with the field, systematically tracking the low-temperature magnetization. These distortions weaken the antiferromagnetic spin exchange, a finding that provides important insight into magnetic transitions in other copper halides.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC; State of Florida
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 988137
- Report Number(s):
- ANL/MSD/JA-63554
- Journal Information:
- Phys. Rev. Lett., Journal Name: Phys. Rev. Lett. Journal Issue: 2009 Vol. 103; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- ENGLISH
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