Magnetic susceptibility of the strongly correlated Hubbard model

1991 ◽  
Vol 43 (4) ◽  
pp. 3706-3709 ◽  
Author(s):  
Kok-Kwei Pan ◽  
Yung-Li Wang
1992 ◽  
Vol 46 (14) ◽  
pp. 9228-9230 ◽  
Author(s):  
M. Bartkowiak ◽  
K. A. Chao

2016 ◽  
Vol 51 (9) ◽  
pp. 1349-1358 ◽  
Author(s):  
Diego Silva Siqueira ◽  
José Marques Júnior ◽  
Daniel De Bortoli Teixeira ◽  
Sammy Sidney Rocha Matias ◽  
Livia Arantes Camargo ◽  
...  

Abstract The objective of this work was to evaluate the use of magnetic susceptibility for characterizing the spatial variability of soil attributes and identifying areas with different potentials for sugarcane (Saccharum spp.) production. Samples were collected at 110 points (1 per 7 ha) in the layers of 0.00-0.20 and 0.20-0.40 m, to determine the magnetic susceptibility and physical and chemical attributes of the soil. Fiber content, sucrose polarization (POL), and sugarcane yield were determined in 33 points. The spatial variability model for magnetic susceptibility was 63 and 22% more accurate in delimiting soil potential for sugarcane production than soil physical and chemical attributes at the 0.0-0.2 and 0.2-0.4-m layers, respectively. The spatial variability map for magnetic susceptibility was strongly correlated with clay (0.83 and 0.89, respectively, for the layers) and sand contents (-0.84 and -0.88); moderately correlated with organic matter (-0.25 and -0.35), sum of bases (-0.46 and 0.37), cation exchange capacity (0.22 and 0.47), pH (-0.52 and 0.13), and POL (0.43 and 0.53); and weakly correlated with sugarcane yield (0.26 and 0.23). Magnetic susceptibility can be used to characterize the spatial variability of soil attributes and to identify areas with different potentials for sugarcane production.


2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Minoru Yamashita ◽  
Shiori Sugiura ◽  
Akira Ueda ◽  
Shun Dekura ◽  
Taichi Terashima ◽  
...  

AbstractWe perform magnetic susceptibility and magnetic torque measurements on the organic κ-(BEDT-TTF)2Hg(SCN)2Br, which is recently suggested to host an exotic quantum dipole-liquid in its low-temperature insulating phase. Below the metal-insulator (MI) transition temperature, the magnetic susceptibility follows a Curie–Weiss law with a positive Curie–Weiss temperature, and a particular $$M\propto \sqrt{H}$$ M ∝ H curve is observed. The emergent ferromagnetically interacting spins amount to about 1/6 of the full spin moment of localized charges. Taking account of the possible inhomogeneous quasi-charge-order that forms a dipole-liquid, we construct a model of antiferromagnetically interacting spin chains in two adjacent charge-ordered domains, which are coupled via fluctuating charges on a Mott-dimer at the boundary. We find that the charge fluctuations can draw a weak ferromagnetic moment out of the spin singlet domains.


2019 ◽  
Vol 100 (7) ◽  
Author(s):  
J. P. F. LeBlanc ◽  
Shaozhi Li ◽  
Xi Chen ◽  
Ryan Levy ◽  
A. E. Antipov ◽  
...  

1987 ◽  
Vol 36 (4) ◽  
pp. 2321-2324 ◽  
Author(s):  
Bao-Hua Zhao ◽  
Hui-Quan Nie ◽  
Kai-Yi Zhang ◽  
K. A. Chao ◽  
R. Micnas

1988 ◽  
Vol 38 (4) ◽  
pp. 2608-2621 ◽  
Author(s):  
G. Geipel ◽  
W. Nolting

Sign in / Sign up

Export Citation Format

Share Document