Data for Phys. Rev. B 95, 134435 (2017) resulting from the UK effort

FigS2a.dat
Neutron powder diffraction spectrum at 20 K
Column 1 = d-spacing (Angstroms); Column 2 = Intensity (arbitrary units).

FigS2b.dat
Neutron powder diffraction spectrum at 1.5 K
Column 1 = d-spacing (Angstroms); Column 2 = Intensity (arbitrary units).

Fig2c.dat
Ordered Magnetic moment vs. temperature
Column 1 = Temperature (Kelvin); Column 2 = Ordered Moment [Bohr Magnetons per Ni(II) ion] ; Column 3 = Error in the ordered moment [Bohr Magnetons per Ni(II) ion];

Fig3.dat
Heat capacity vs. temperature;

Column 1,3,5,7,9,11,13,15 = Temperature (K); Column 2, 4, 6, 8, 10, 12, 14, 16, 18 =Heat capacity (J K^(-1) mol^(-1);

Measurements are recorded at quasistatic \mu_{0}H
Columns 1-2 = 0 T
Columns 3-4 = 1 T
Columns 5-6 = 2 T
Columns 7-8 = 3 T
Columns 9-10 = 4 T
Columns 11-12 = 5 T
Columns 13-14 = 6 T
Columns 15-16 = 7 T
Columns 17-18 = 8 T
Columns 19-20 = 9 T


Fig4a.dat
Powder magnetization (M) of [Ni(HF2)(pyz)2]SbF6 vs. applied magnetic field (\mu_{0}H)

Columns 1, 3, 5, 7, 9, 11 = Applied magnetic field (\mu_{0}H) (Tesla)
Columns 2, 4, 6, 8, 10, 12 = Powder magnetization (arbitrary units)

Measurements are recorded at temperatures:
Columns 1, 2 = 0.6 K
Columns 3, 4 = 2.2 K
Columns 5, 6 = 4.1 K
Columns 7, 8 = 7.1 K
Columns 9, 10 = 9.0 K
Columns 11, 12 = 11.4 K


Fig4b.dat
Powder differential susceptibility (dM/dH) of [Ni(HF2)(pyz)2]SbF6 vs. applied magnetic field (\mu_{0}H) at 0.6 K

Columns 1 = Applied magnetic field (\mu_{0}H) (Tesla)
Columns 2 = Differential susceptibility (arbitrary units)

Fig 4c.dat
Powder differential susceptibility (dM/dH) of [Ni(HF2)(pyz)2]SbF6 vs. applied magnetic field (\mu_{0}H)

Columns 1, 3, 5, 7, 9, 11 = Applied magnetic field (\mu_{0}H) (Tesla)
Columns 2, 4, 6, 8, 10, 12 = Differential susceptibility (arbitrary units)

Measurements are recorded at temperatures:
Columns 1, 2 = 1.5 K
Columns 3, 4 = 4.21 K
Columns 5, 6 = 8.0 K
Columns 7, 8 = 9.0 K
Columns 9, 10 = 11.4 K
Columns 11, 12 = 15 K

Fig5.dat
Applied Magnetic Field (\mu_{0}H) vs. temperature phase diagram of [Ni(HF2)(pyz)2]SbF6

Columns 1-3: Magnetic ordering temperature vs. applied magnetic field
Column 1 = Applied Magnetic Field (\mu_{0}H) (Tesla)
Column 2 = Magnetic ordering temperature derived from powder heat capacity measurements (green points) (Kelvin)
Column 3 = +/- Error in Column 2 (Kelvin)

Columns 4-6: Temperature evolution of Hc1
Column 4 = Hc1 derived from powder differential susceptibility measurements (pink points) (Tesla)
Column 5 = +/- Error in Column 4 (Tesla)
Column 6 = Temperature (Kelvin)

Columns 7-9: Temperature evolution of Hc2
Column 7 = Hc1 derived from powder differential susceptibility measurements (blue points) (Tesla)
Column 8 = +/- Error in Column 4 (Tesla)
Column 9 = Temperature (Kelvin)

Fig9a
Linear susceptibility vs. temperature for a powdered sample of [Ni(HF2)(pyz)2]SbF6, recorded in a quasistatic applied magnetic filed of \mu_{0}H = 0.1 T. 
These data are derived from the published [1] linear susceptibility measurements and have been interpolated to the inclusive temperature range
[2, 300] K in steps of 1 K. 

Column 1 = Temperature (K)
Column 2 = Linear susceptibility [m^3 mol^(-1)]


References:
[1] J. L. Manson, S. H. Lapidus, P. W. Stephens, P. K. Peterson,
K. E. Carreiro, H. I. Southerland, T. Lancaster, S. J. Blundell, A. J. Steele, P. A. Goddard,
F. L. Pratt, J. Singleton, Y. Kohama, R. D. McDonald, R. E. Del Sesto, N. A. Smith,
J. Bendix, S. A. Zvyagin, J. Kang, C. Lee, M.-H. Whangbo, V. S. Zapf, and A. Plonczak, Inorg. Chem, 50, 5990 (2011).