Unequal sensitivities of energy levels in a high-symmetry Ho³⁺ complex towards lattice distortions

Abstract

High-resolution inelastic neutron scattering has been used to study low-energy magnetic transitions in a Ho3+ complex. This complex crystallizes in the high-symmetry space group P4/m and has near-perfect D4d symmetry,...

Spectroscopic techniques to probe magnetic anisotropy and spin–phonon coupling in metal complexes

“…For SMMs with one magnetic ion, called single-ion magnets (SIMs) with typically much larger anisotropy, INS has been used to probe their magnetic properties, including the determination of magnetic excited states. [71][72][73][74][75][76][77][78][79] For example, for 1, D > 50 cm −1 , indicating it has much larger ZFS than those in many poly-nuclear complexes. The challenge for us when we started using INS to characterize SIMs in the mid-2010s was how to identify magnetic peaks of such high energies in INS spectra.…”

“…30,[38][39][40][41] Sometimes, simulating HFEPR spectra or combining HFEPR and DC data fitting may measure larger ZFS, [42][43][44][45][46] although using the DC data fitting here may not give reliable ZFS parameters. Using FIRMS, 31,33,35,37,40,[47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65][66] frequency-domain-Fourier-transform-terahertz-EPR spectroscopy (FD-FT-THz-EPR), 54,67,68 and INS [69][70][71][72][73][74][75][76][77][78][79] to determine magnetic excited levels and anisotropy has been reported. It should be pointed out ...…”

Experimental assignment of long-range magnetic communication through Pd & Pt metallophilic contacts

“…For nearly a decade, the Doerrer group has been working on developing the science of heterobimetalic lantern complexes incorporating the Pt-metalloligands and a variable hard metal ion of group two and first-row transition metals. [11][12][13][14][15][16][17][18][19] In parallel, the coordination chemistry of both the Pt-and Pd-metalloligands with the lanthanide elements has been developed by us [20][21][22][23][24] and the group of Yamashita. [25][26][27][28][29] In the transition metal chemistry of the Pt-ligands, the complexes are formed by the bridging action of the four thiocarboxylate linking the soft Pt 2+ ion with the hard metal ion.…”

“…For nearly a decade, the Doerrer group has been working on developing the science of heterobimetalic lantern complexes incorporating the Pt-metalloligands and a variable hard metal ion of group two and first-row transition metals. 11–19 In parallel, the coordination chemistry of both the Pt- and Pd-metalloligands with the lanthanide elements has been developed by us 20–24 and the group of Yamashita. 25–29…”

Comprehensive Studies of Magnetic Transitions and Spin–Phonon Couplings in the Tetrahedral Cobalt Complex Co(AsPh3)2I2

“…Inelastic neutron scattering (INS) is a powerful method for probing magnetic energy levels and phonons in d and f complexes − with increasing uses recently. ,,,− INS, covering a variety of methods and spectrometers, has been reviewed. , As in FIRMS, finding a magnetic peak among phonon peaks in INS spectra is often a challenge. INS may directly reveal magnetic transitions, especially when few phonons are nearby. ,, When magnetic peaks overlap with phonons, variable-temperature (VT) or variable-field INS may be used to reveal the magnetic peaks.…”