Pressure-induced new magnetic phase in Tl(Cu0.985Mg 0.015)Cl3 probed by muon spin rotation

Takao Suzuki, Isao Watanabe, Fumiko Yamada, Motoki Yamada, Yasuyuki Ishii, Takayuki Kawamata, Takayuki Goto, Hidekazu Tanaka

Research output: Contribution to journalArticle

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Abstract

We carried out zero-field muon-spin-rotation (ZF-μSR) measurements in hydrostatic pressures in impurity-doped quantum spin gap system Tl(Cu 0.985Mg0.015)Cl3 to investigate microscopic magnetic properties of the pressure-induced phase. The spontaneous muon spin precession, which indicates the existence of a long-range coherent order, is observed in pressures. With decreasing temperature in 3.1 kbar, the internal static magnetic field at the muon sites Hint tends to saturate to 280 Oe around 4 K, however, decreases to 240 Oe at 2.3 K. These results suggest a rearrangement of ordered spins, and we speculate that the oblique antiferromagnetic phase, which is observed in the pressure of 14 kbar on the pure TlCuCl3, appears in the Mg-doped system in lower pressures.

Original languageEnglish
Article number012054
JournalJournal of Physics: Conference Series
Volume225
DOIs
Publication statusPublished - 2010
Externally publishedYes

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muon spin rotation
muons
precession
hydrostatic pressure
low pressure
magnetic properties
impurities
magnetic fields
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Pressure-induced new magnetic phase in Tl(Cu0.985Mg 0.015)Cl3 probed by muon spin rotation. / Suzuki, Takao; Watanabe, Isao; Yamada, Fumiko; Yamada, Motoki; Ishii, Yasuyuki; Kawamata, Takayuki; Goto, Takayuki; Tanaka, Hidekazu.

In: Journal of Physics: Conference Series, Vol. 225, 012054, 2010.

Research output: Contribution to journalArticle

Suzuki, Takao ; Watanabe, Isao ; Yamada, Fumiko ; Yamada, Motoki ; Ishii, Yasuyuki ; Kawamata, Takayuki ; Goto, Takayuki ; Tanaka, Hidekazu. / Pressure-induced new magnetic phase in Tl(Cu0.985Mg 0.015)Cl3 probed by muon spin rotation. In: Journal of Physics: Conference Series. 2010 ; Vol. 225.
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AU - Suzuki, Takao

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AU - Yamada, Fumiko

AU - Yamada, Motoki

AU - Ishii, Yasuyuki

AU - Kawamata, Takayuki

AU - Goto, Takayuki

AU - Tanaka, Hidekazu

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