Spin Susceptibility and Superexchange Interaction in the Antiferromagnet CuO

Abstract

Evidence for the quasi one-dimensional (1D) antiferromagnetism of CuO is presented in a framework of Heisenberg model. We have obtained an experimental absolute value of the paramagnetic spin susceptibility of CuO by subtracting the orbital susceptibility separately from the total susceptibility through the ${}^{63}$Cu NMR shift measurement, and compared directly with the theoretical predictions. The result is best described by a 1D $S=1/2$ antiferromagnetic Heisenberg (AFH) model, supporting the speculation invoked by earlier authors. We also present a semi-quantitative reason why CuO, seemingly of 3D structure, is unexpectedly a quasi 1D antiferromagnet.

7 pages including 4 tables and 9 figures

References in corpus (7)

• Susceptibility of the Spin 1/2 Heisenberg Antiferromagnetic Chain
• Electronic States and Magnetic Propertis of Edge-sharing Cu-O Chains
• Reexamination of the microscopic couplings of the quasi one-dimensional antiferromagnet CuGeO_3
• Superexchange coupling and spin susceptibility spectral weight in undoped monolayer cuprates
• Nuclear relaxation in the spin-1/2 antiferromagnetic chain compound Sr_2CuO_3 --- comparison between theories and experiments
• An Accurate Determination of the Exchange Constant in Sr_2CuO_3 from Recent Theoretical Results
• Spin Dynamics of the One-Dimensional J-J' Model and Spin-Peierls Transition in CuGeO_3

Cited by in corpus (19)

• Nature of the spin dynamics and 1/3 magnetization plateau in azurite
• Electronic Structure and Spectra of CuO
• High-Tc ferrolectricity emerging from magnetic degeneracy in cupric oxide
• Magnetoelectric effect and phase transitions in CuO in external magnetic fields
• Tuning magnetic spirals beyond room temperature with chemical disorder
• Electric field control of chiral magnetic domains in the high-temperature multiferroic CuO
• Incommensurate short-range order in the S=1 triangular antiferromagnet NiGa2S4
• Origin of ferroelectricity in high-$T_c$ magnetic ferroelectric CuO
• Paramagnons and high-temperature superconductivity in mercury-based cuprates
• Short-range magnetic order and temperature-dependent properties of cupric oxide
• The magnetic and electronic properties of Oxyselenides - influence of transition metal ions and lanthanides
• Solitary magnons in the $S=\frac{5}{2}$ antiferromagnet CaFe${}_2$O${}_4$
• Spin dynamics and exchange interactions in CuO measured by neutron scattering
• Dramatic enhancement of spin-spin coupling and quenching of magnetic dimensionality in compressed silver difluoride
• Long-range magnetic order in the anisotropic triangular lattice system CeCd3As3
• Spin-$0$ Mott insulator to metal to spin-$1$ Mott insulator transition in the single-orbital Hubbard model on the decorated honeycomb lattice
• Non-linear soliton confinement in weakly coupled antiferromagnetic spin chains
• Tracking a hysteretic and disorder-broadened phase transition via the electromagnon response in improper ferroelectrics
• Thermal stimulated current response in cupric oxide single crystal thin films over a wide temperature range