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pro vyhledávání: '"Shen, S. Q."'
Akademický článek
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Publikováno v:
Phys. Rev. A 69,023611(2004)
In terms of exact solutions of the time-dependent Schrodinger equation for an effective giant spin modeled from a coupled two-mode Bose-Einstein condensate (BEC) with adiabatic and cyclic time-varying Raman coupling between two hyperfine states of th
Externí odkaz:
http://arxiv.org/abs/cond-mat/0403570
Autor:
Chen, Z. D., Shen, S. Q.
Publikováno v:
Physical Review B 67, 012408 (2003)
Magnetic relaxation in molecular magnets under a sweeping field is studied by taking into account local stray fields. It is found that the randomness of local stray field leads to a distribution of the relaxation rate which subsequently makes the rel
Externí odkaz:
http://arxiv.org/abs/cond-mat/0212109
Publikováno v:
Phys. Rev. B 68, 104407 (2003)
Two single-molecule magnets are coupled antiferromagnetically to form a supramolecule dimer. We study the coupling effect and tunneling process by means of the numerical exact diagonalization method, and apply them to the recently synthesized supramo
Externí odkaz:
http://arxiv.org/abs/cond-mat/0212002
Autor:
Shen, S. Q., Xie, X. C.
Publikováno v:
Phys. Rev. B 67, 144423 (2003)
By using the projection operator technique it is observed that the strong Hund's rule coupling and s-d interaction in transition metal elements may lead to an effective coupling between the spin current and spin spirality. As a result, the spin spira
Externí odkaz:
http://arxiv.org/abs/cond-mat/0210661
Autor:
Shen, S. Q., Zhang, F. C.
Publikováno v:
Phys. Rev. B 66, 172407 (2002)
We use Schwinger boson mean field theory to study the antiferromagnetic spin-1/2 Heisenberg model on an anisotropic triangular lattice in the presence of a uniform external magnetic field. We calculate the field dependence of the spin incommensurabil
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207056
Publikováno v:
Epidemiology and Infection, 2017 Sep 01. 145(12), 2510-2519.
Externí odkaz:
https://www.jstor.org/stable/26521341
Autor:
Shen, S. Q., Xie, X. C.
We show that there is pseudospin SU(2) symmetry in the one-dimensional tight-binding model with the inter-molecular electron-phonon interaction. We discuss the relation between the pseudospin symmetry breaking and the charge-density wave (CDW). For a
Externí odkaz:
http://arxiv.org/abs/cond-mat/9507075
Autor:
Shen, S. Q., Xie, X. C.
In this paper, we discuss physical consequences of pseudospin SU(2) symmetry breaking in the negative-U Hubbard model at half-filling. If pseudospin symmetry is spontaneously broken while its unique subgroup U(1) remains invariant, it will lead to th
Externí odkaz:
http://arxiv.org/abs/cond-mat/9504019
Akademický článek
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