Magnetic exchange parameters and anisotropy of the quasi-two-dimensional antiferromagnet<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>NiPS</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>

Lançon, D.; Ewings, Russell A.; Guidi, Tatiana; Formisano, F.; Wildes, A.

doi:10.1103/physrevb.98.134414

Cited by 105 publications

(104 citation statements)

References 33 publications

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“…The spin interaction parameters can also be obtained from comparing the experimental results of observable quantities such as transition temperatures, magnetization [166], spe-cific heat [166], magnetic susceptibility [166,167], and magnon spectrum (given by inelastic neutron scattering measurements) [110,124,[168][169][170][171] with the corresponding predictions given by the effective Hamiltonian model, which is similar to the idea of energy-mapping analysis based on least squares fitting. While the transition temperatures can only be used to roughly estimate the major interaction (typically the Heisenberg interaction between nearest pairs), the magnon spectrum can provide more detailed information and thus widely adopted for obtaining interaction parameters.…”

Section: More Discussion On Calculating Spin Interaction Parametersmentioning

confidence: 99%

Spin Hamiltonians in Magnets: Theories and Computations

Liu

et al. 2021

Molecules

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The effective spin Hamiltonian method has drawn considerable attention for its power to explain and predict magnetic properties in various intriguing materials. In this review, we summarize different types of interactions between spins (hereafter, spin interactions, for short) that may be used in effective spin Hamiltonians as well as the various methods of computing the interaction parameters. A detailed discussion about the merits and possible pitfalls of each technique of computing interaction parameters is provided.

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Section: More Discussion On Calculating Spin Interaction Parametersmentioning

confidence: 99%

Spin Hamiltonians in Magnets: Theories and Computations

Liu

et al. 2021

Molecules

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“…Inspection of the crystal structure shows that the exchange paths between nearest-neighbors are straight forward, but that exchange paths to the second nearest-neighbors are convoluted. 27,28 It seems probable that J 2 remains close to zero and that J 1 , which is strong, is the exchange most affected.…”

Section: Discussionmentioning

confidence: 99%

Evidence for biquadratic exchange in the quasi-two-dimensional antiferromagnet FePS3

Wildes

Zhitomirsky

Ziman

et al. 2020

Journal of Applied Physics

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FePS 3 is a van der Waals compound with a honeycomb lattice that is a good example of a two-dimensional antiferromagnet with Ising-like anisotropy. Neutron spectroscopy data from FePS 3 were previously analyzed using a straightforward Heisenberg Hamiltonian with a single-ion anisotropy. The analysis captured most of the elements of the data; however, some significant discrepancies remained. The discrepancies were most obvious at the Brillouin zone boundaries. The data are subsequently reanalyzed, allowing for unequal exchange between nominally equivalent nearest-neighbors, which resolves the discrepancies. The source of the unequal exchange is attributed to a biquadratic exchange term in the Hamiltonian, which most probably arises from a strong magnetolattice coupling. The new parameters show that there are features consistent with Dirac magnon nodal lines along certain Brillouin zone boundaries.

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“…Note that the presence of a high concentration of stacking faults is a well-known problem in layered vdW compounds and was observed for Ni 2 P 2 S 6 in Refs. [45,46]. Moreover, stacking faults in the samples manifest by an asymmetry of the 00l reflections in the pXRD patterns.…”

Section: Characterization: Compositional and Structural Analysismentioning

confidence: 99%

Tuning Magnetic and Transport Properties in Quasi-2D (Mn1−xNix)2P2S6 Single Crystals

Shemerliuk

Zhou

Yang

et al. 2021

Electronic Materials

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We report an optimized chemical vapor transport method to grow single crystals of (Mn1−xNix)2P2S6 where x = 0, 0.3, 0.5, 0.7, and 1. Single crystals up to 4 mm × 3 mm × 200 μm were obtained by this method. As-grown crystals are characterized by means of scanning electron microscopy and powder X-ray diffraction measurements. The structural characterization shows that all crystals crystallize in monoclinic symmetry with the space group C2/m (No. 12). We have further investigated the magnetic properties of this series of single crystals. The magnetic measurements of the all as-grown single crystals show long-range antiferromagnetic order along all principal crystallographic axes. Overall, the Néel temperature TN is non-monotonous; with increasing Ni2+ doping, the temperature of the antiferromagnetic phase transition first decreases from 80 K for pristine Mn2P2S6 (x = 0) up to x = 0.5 and then increases again to 155 K for pure Ni2P2S6 (x = 1). The magnetic anisotropy switches from out-of-plane to in-plane as a function of composition in (Mn1−xNix)2P2S6 series. Transport studies under hydrostatic pressure on the parent compound Mn2P2S6 evidence an insulator-metal transition at an applied critical pressure of ~22 GPa.

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Magnetic exchange parameters and anisotropy of the quasi-two-dimensional antiferromagnetNiPS3

Cited by 105 publications

References 33 publications

Spin Hamiltonians in Magnets: Theories and Computations

Spin Hamiltonians in Magnets: Theories and Computations

Evidence for biquadratic exchange in the quasi-two-dimensional antiferromagnet FePS3

Tuning Magnetic and Transport Properties in Quasi-2D (Mn1−xNix)2P2S6 Single Crystals

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