High-field magnetization study of [Cu(pyz){sub 2} (HF{sub 2})]PF{sub 6} : an s = 1/2 quasi-two-dimensional Heisenberg magnet.
Journal Article
·
· J. Low Temp. Phys.
We report on pulsed-field magnetization studies of the quasi-two-dimensional spin system [Cu(pyz){sub 2}(HF{sub 2})]PF{sub 6}. The magnetization saturates at B{sub C}{sup ab} = 37.5 T and B{sub C}{sup c} = 33.8 T for in-plane and out-of-plane orientations of the applied magnetic field, respectively. In addition, the angular dependence of the g-factor studied by electron-spin resonance reveals orbital overlap in the ab plane suggesting a quasi-two-dimensional square-lattice network of Cu spins. It is argued that the high-field behavior is governed by the two-dimensional nature of the spin correlations due to the large anisotropy of the exchange couplings.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); German Research Foundation (DFG); Euro-MagNET
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 971985
- Report Number(s):
- ANL/MSD/JA-66114; JLTPAC; TRN: US201005%%104
- Journal Information:
- J. Low Temp. Phys., Vol. 159, Issue 1-2 ; Apr. 2010; ISSN 0022-2291
- Country of Publication:
- United States
- Language:
- ENGLISH
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