Singlet ground state and energy gap in double spin chain system KCuCl3 family

H. Tanaka, K. Takatsu, W. Shiramura, T. Ono, Takashi Kambe, K. Kamishima, H. Mitamura, T. Goto

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Magnetic properties of S = 1/2 double spin chain systems KCuCl3 and TlCuCl3 have been investigated by susceptibility, high-field magnetization process and ESR measurements using single crystals. The present systems can be described as a Heisenberg spin ladder with an additional interaction. It is found that the susceptibilities of both the compounds exhibit broad maxima and decrease exponentially to zero with decreasing temperature. This result indicates that the ground state of the present system is a spin singlet and there is a finite gap in the excitation spectrum. The transition to the magnetic state is clearly observed by the high-field magnetization process. ESR absorption due to the excitation from the singlet ground state to the excited state is observed for TlCuCl3.

Original languageEnglish
Pages (from-to)120-122
Number of pages3
JournalPhysica B: Condensed Matter
Volume237-238
Publication statusPublished - Jul 1997

Fingerprint

Ground state
Paramagnetic resonance
Magnetization
Energy gap
ground state
Ladders
Excited states
excitation
magnetic permeability
Magnetic properties
magnetization
Single crystals
ladders
magnetic properties
single crystals
Temperature
interactions
temperature

Keywords

  • KCuCl
  • Ladder compounds
  • Spin gap
  • TlCuCl

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Tanaka, H., Takatsu, K., Shiramura, W., Ono, T., Kambe, T., Kamishima, K., ... Goto, T. (1997). Singlet ground state and energy gap in double spin chain system KCuCl3 family. Physica B: Condensed Matter, 237-238, 120-122.

Singlet ground state and energy gap in double spin chain system KCuCl3 family. / Tanaka, H.; Takatsu, K.; Shiramura, W.; Ono, T.; Kambe, Takashi; Kamishima, K.; Mitamura, H.; Goto, T.

In: Physica B: Condensed Matter, Vol. 237-238, 07.1997, p. 120-122.

Research output: Contribution to journalArticle

Tanaka, H, Takatsu, K, Shiramura, W, Ono, T, Kambe, T, Kamishima, K, Mitamura, H & Goto, T 1997, 'Singlet ground state and energy gap in double spin chain system KCuCl3 family', Physica B: Condensed Matter, vol. 237-238, pp. 120-122.
Tanaka H, Takatsu K, Shiramura W, Ono T, Kambe T, Kamishima K et al. Singlet ground state and energy gap in double spin chain system KCuCl3 family. Physica B: Condensed Matter. 1997 Jul;237-238:120-122.
Tanaka, H. ; Takatsu, K. ; Shiramura, W. ; Ono, T. ; Kambe, Takashi ; Kamishima, K. ; Mitamura, H. ; Goto, T. / Singlet ground state and energy gap in double spin chain system KCuCl3 family. In: Physica B: Condensed Matter. 1997 ; Vol. 237-238. pp. 120-122.
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