Source Publication (e.g., journal title)
Physical Review B
We combined synchrotron-based infrared and Raman spectroscopies, diamond anvil cell techniques, and first principles calculations to unveil pressure-induced distortions in quasi-one-dimensional Cu(pyz)(NO3)2. The crossover at 0.7 GPa is local in nature whereas the transition at 5 GPa lowers symmetry fromPmna to P2221 and is predicted to slightly increase magnetic dimensionality. Comparison with prior magnetoinfrared results reveals the striking role of out-of-plane bending of the pyrazine ligand, a finding that we discuss in terms of the possibility of using pressure to bias the magnetic quantum critical transition in this classic S = 1/2 antiferromagnet.
O'Neal, Kenneth Robert; Zhou, J; Cherian, J G.; Turnbull, M M.; Landee, C P.; Jena, Puru; Liu, Zhenxian; and Musfeldt, Janice L., "Pressure-induced structural transition in copper pyrazine dinitrate and implications for quantum magnetism" (2016). Chemistry Publications and Other Works.