Nuclear-spin-lattice relaxation and magnetization of the ferromagnetic S=1/2 chain system (C6H11NH3)CuBr3 : contribution of magnons and solitons

K. Kopinga; A.M.C. Tinus; W.J.M. Jonge, de; G.C. de Vries

doi:10.1103/PhysRevB.36.5398

Nuclear-spin-lattice relaxation and magnetization of the ferromagnetic S=1/2 chain system (C6H11NH3)CuBr3 : contribution of magnons and solitons

K. Kopinga, A.M.C. Tinus, W.J.M. Jonge, de, G.C. de Vries

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Abstract

The spin-lattice relaxation rate (T1-1) of the hydrogen nuclei in (C6H11NH3)CuBr3 (CHAB) has been measured for 1.21 is completely dominated by the two-magnon (Raman) process, whereas for vB /T0.8 exhibit systematic deviations from linear spin-wave theory, which can fully be explained by the effect of sine-Gordon solitons. The apparent discrepancies between the observed magnetization and various classical model predictions seem to originate primarily from the poor description of the linear excitations by these models.

Original language	English
Pages (from-to)	5398-5410
Number of pages	13
Journal	Physical Review B: Condensed Matter
Volume	36
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.36.5398
Publication status	Published - 1987

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title = "Nuclear-spin-lattice relaxation and magnetization of the ferromagnetic S=1/2 chain system (C6H11NH3)CuBr3 : contribution of magnons and solitons",

abstract = "The spin-lattice relaxation rate (T1-1) of the hydrogen nuclei in (C6H11NH3)CuBr3 (CHAB) has been measured for 1.21 is completely dominated by the two-magnon (Raman) process, whereas for vB /T0.8 exhibit systematic deviations from linear spin-wave theory, which can fully be explained by the effect of sine-Gordon solitons. The apparent discrepancies between the observed magnetization and various classical model predictions seem to originate primarily from the poor description of the linear excitations by these models.",

author = "K. Kopinga and A.M.C. Tinus and {Jonge, de}, W.J.M. and {de Vries}, G.C.",

year = "1987",

doi = "10.1103/PhysRevB.36.5398",

language = "English",

volume = "36",

pages = "5398--5410",

journal = "Physical Review B: Condensed Matter",

issn = "0163-1829",

publisher = "American Institute of Physics",

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T1 - Nuclear-spin-lattice relaxation and magnetization of the ferromagnetic S=1/2 chain system (C6H11NH3)CuBr3 : contribution of magnons and solitons

AU - Kopinga, K.

AU - Tinus, A.M.C.

AU - Jonge, de, W.J.M.

AU - de Vries, G.C.

PY - 1987

Y1 - 1987

N2 - The spin-lattice relaxation rate (T1-1) of the hydrogen nuclei in (C6H11NH3)CuBr3 (CHAB) has been measured for 1.21 is completely dominated by the two-magnon (Raman) process, whereas for vB /T0.8 exhibit systematic deviations from linear spin-wave theory, which can fully be explained by the effect of sine-Gordon solitons. The apparent discrepancies between the observed magnetization and various classical model predictions seem to originate primarily from the poor description of the linear excitations by these models.

AB - The spin-lattice relaxation rate (T1-1) of the hydrogen nuclei in (C6H11NH3)CuBr3 (CHAB) has been measured for 1.21 is completely dominated by the two-magnon (Raman) process, whereas for vB /T0.8 exhibit systematic deviations from linear spin-wave theory, which can fully be explained by the effect of sine-Gordon solitons. The apparent discrepancies between the observed magnetization and various classical model predictions seem to originate primarily from the poor description of the linear excitations by these models.

U2 - 10.1103/PhysRevB.36.5398

DO - 10.1103/PhysRevB.36.5398

M3 - Article

SN - 0163-1829

VL - 36

SP - 5398

EP - 5410

JO - Physical Review B: Condensed Matter

JF - Physical Review B: Condensed Matter

IS - 10

ER -

Nuclear-spin-lattice relaxation and magnetization of the ferromagnetic S=1/2 chain system (C6H11NH3)CuBr3 : contribution of magnons and solitons

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