title: Spin-Lattice Coupling in [Ni(HF2)(pyrazine)2]SbF6Involving the HF2-Superexchange Pathway.
abstract: Magnetoelastic coupling in the quantum magnet [Ni(HF2)(pyrazine)2]SbF6has been investigated via vibrational spectroscopy using temperature, magnetic field, and pressure as tuning parameters. While pyrazine is known to be a malleable magnetic superexchange ligand, we find that HF2-is surprisingly sensitive to external stimuli and is actively involved in both the magnetic quantum phase transition and the series of pressure-induced structural distortions. The amplified spin-lattice interactions involving the bifluoride ligand can be understood in terms of the relative importance of the intra- and interplanar magnetic energy scales.
authors.affiliation: Department of Chemistry, University of Tennessee , Knoxville, Tennessee 37996, United States.
authors.forename: Kenneth R
authors.initials: KR
authors.lastname: O'Neal
authors.affiliation: Department of Chemistry, University of Tennessee , Knoxville, Tennessee 37996, United States.
authors.forename: Brian S
authors.initials: BS
authors.lastname: Holinsworth
authors.affiliation: National High Magnetic Field Laboratory , Tallahassee, Florida 32310, United States.
authors.forename: Zhiguo
authors.initials: Z
authors.lastname: Chen
authors.affiliation: Department of Chemistry and Biochemistry, Eastern Washington University , Cheney, Washington 99004, United States.
authors.forename: Peter K
authors.initials: PK
authors.lastname: Peterson
authors.affiliation: Department of Chemistry and Biochemistry, Eastern Washington University , Cheney, Washington 99004, United States.
authors.forename: Kimberly E
authors.initials: KE
authors.lastname: Carreiro
authors.affiliation: Department of Chemistry, North Carolina State University , Raleigh, North Carolina 27695, United States.
authors.forename: Changhoon
authors.initials: C
authors.lastname: Lee
authors.affiliation: Department of Chemistry and Biochemistry, Eastern Washington University , Cheney, Washington 99004, United States.
authors.forename: Jamie L
authors.initials: JL
authors.lastname: Manson
authors.affiliation: Department of Chemistry, North Carolina State University , Raleigh, North Carolina 27695, United States.
authors.forename: Myung-Hwan
authors.initials: MH
authors.lastname: Whangbo
authors.affiliation: National High Magnetic Field Laboratory , Tallahassee, Florida 32310, United States.
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Li
authors.affiliation: Geophysical Laboratory, Carnegie Institution of Washington , Washington D.C. 20015, United States.
authors.forename: Zhenxian
authors.initials: Z
authors.lastname: Liu
authors.affiliation: Department of Chemistry, University of Tennessee , Knoxville, Tennessee 37996, United States.
authors.forename: Janice L
authors.initials: JL
authors.lastname: Musfeldt