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cond-mat.str-el2005★ 2 cited
Zero-temperature magnetic-field-induced phase transition between two ordered gapped phases in spin-ladders with ferromagnetic legs
P. N. Bibikov
We suggest that under an increase of a magnetic field a spin-ladder with ferromagnetic legs does not pass without fail through an incommensurate phase but possibly in a straight wa…
cond-mat.str-el2005
One-magnon states and electron spin resonance in spin-ladders with singlet-rung ground statein a staggered magnetic field
P. N. Bibikov
One-magnon problem for spin-ladders with exact singlet-rung ground state in arbitrary oriented constant and staggered magnetic fields is studied. For two special configurations whe…