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5 papers · 2 filters
Specific heat of an S=1/2 Heisenberg ladder compound Cu(CHN)Cl under magnetic fields
M. Hagiwara, H. A. Katori, U. Schollwöck +1
Specific heat measurements down to 0.5 K have been performed on a single crystal sample of a spin-ladder like compound Cu(CHN)Cl under magnetic…
Magnetization plateaus as insulator-superfluid transitions in quantum spin systems
Tsutomu Momoi, Keisuke Totsuka
We study the magnetization process in two-dimensional S=1/2 spin systems, to discuss the appearance of a plateau structure. The following three cases are considered: (1) the Heisen…
Freezing of anisotropic spin clusters in La1.98Sr0.02CuO4
M. Matsuda, Y. S. Lee, M. Greven +8
A spin-glass compound, LaSrCuO, shows quasi-three-dimensional magnetic ordering below 40 K. A remarkable feature is that the magnetic correlation length…
Origin of the Charge-Orbital Stripe Structure in La_(1-x)Ca_(x)MnO_(3) (x=1/2, 2/3)
Tetsuya Mutou, Hiroshi Kontani
We propose the origin of the charge-ordered stripe structure with the orbital ordering observed experimentally in La_(1-x)Ca_(x)MnO_(3) (x=1/2, 2/3), in which the long-range Coulom…
Hole concentration induced transformation of the magnetic and orbital structure in Nd{1-x}Sr{x}MnO{3}
R. Kajimoto, H. Yoshizawa, H. Kawano +4
In order to study the magnetic and crystal structures in the Nd{1-x}Sr{x}MnO{3} system, we have peformed neutron diffraction measurements on melt-grown polycrystalline samples with…