NMR imaging of the soliton lattice profile in the spin-Peierls compound CuGeO_3

Дата и время публикации : 1998-12-22T16:21:05Z

Авторы публикации и институты :
M. Horvatic (GHMFL, CNRS/MPI, Grenoble)
Y. Fagot Revurat (GHMFL, CNRS/MPI, Grenoble)
C. Berthier (GHMFL, CNRS/MPI, Grenoble)
G. Dhalenne (LCS, CNRS, Orsay)
A. Revcolevschi (LCS, CNRS, Orsay)

Ссылка на журнал-издание: Phys. Rev. Lett. 83, (1999), pp.420-3
Коментарии к cтатье: 3 pages, 4 eps figures, RevTeX, submitted to Physical Review Letter
Первичная категория: cond-mat.str-el

Все категории : cond-mat.str-el

Краткий обзор статьи: In the spin-Peierls compound CuGeO$_{3}$, the commensurate-incommensurate transition concerning the modulation of atomic position and the local spin-polarization is fully monitored at T=0 by the application of an external magnetic field ($H$) above a threshold value $H_{c}simeq $ 13 Tesla. The solitonic profile of the spin-polarization, as well as its absolute magnitude, has been precisely imaged from $^{65}Cu$ NMR lineshapes obtained for $h=(H-H_{c})/H_{c}$ varying from 0.0015 to 2. This offers a unique possibility to test quantitatively the various numerical and analytical methods developed to solve a generic Hamiltonian in 1-D physics, namely strongly interacting fermions in presence of electron-phonon coupling at arbitrary band filling.

Category: Physics