Muon spin rotation and relaxation studies on the solid solution of the two spin-gap systems (C H3) 2 CHN H3 -Cu Cl3 and (C H3) 2 CHN H3 -Cu Br3

T. Saito, A. Oosawa, T. Goto, Takao Suzuki, I. Watanabe

研究成果: Article

24 引用 (Scopus)

抄録

Muon-spin-rotation and -relaxation studies have been performed on (C H3) 2 CHN H3 Cu (Clx Br1-x) 3 with x=0.85 and 0.95, which are solid solutions of the two isomorphic spin-gap systems (C H3) 2 CHN H3 Cu Cl3 and (C H3) 2 CHN H3 Cu Br3 with different spin gaps. The sample with x=0.85 showed a clear muon spin rotation under zero-field below TN =11.65 K, indicating the existence of a long-range antiferromagnetic order. A critical exponent of the hyperfine field was obtained to be β=0.33, which agrees with 3D-Ising model. In the other sample with x=0.95, an anomalous enhancement of the muon spin relaxation was observed at very low temperatures indicating a critical slowing down due to a magnetic instability of the ground state.

元の言語English
記事番号134423
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
74
発行部数13
DOI
出版物ステータスPublished - 2006
外部発表Yes

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muon spin rotation
Solid solutions
solid solutions
Ising model
Ground state
muons
exponents
ground state
augmentation
Temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

これを引用

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title = "Muon spin rotation and relaxation studies on the solid solution of the two spin-gap systems (C H3) 2 CHN H3 -Cu Cl3 and (C H3) 2 CHN H3 -Cu Br3",
abstract = "Muon-spin-rotation and -relaxation studies have been performed on (C H3) 2 CHN H3 Cu (Clx Br1-x) 3 with x=0.85 and 0.95, which are solid solutions of the two isomorphic spin-gap systems (C H3) 2 CHN H3 Cu Cl3 and (C H3) 2 CHN H3 Cu Br3 with different spin gaps. The sample with x=0.85 showed a clear muon spin rotation under zero-field below TN =11.65 K, indicating the existence of a long-range antiferromagnetic order. A critical exponent of the hyperfine field was obtained to be β=0.33, which agrees with 3D-Ising model. In the other sample with x=0.95, an anomalous enhancement of the muon spin relaxation was observed at very low temperatures indicating a critical slowing down due to a magnetic instability of the ground state.",
author = "T. Saito and A. Oosawa and T. Goto and Takao Suzuki and I. Watanabe",
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TY - JOUR

T1 - Muon spin rotation and relaxation studies on the solid solution of the two spin-gap systems (C H3) 2 CHN H3 -Cu Cl3 and (C H3) 2 CHN H3 -Cu Br3

AU - Saito, T.

AU - Oosawa, A.

AU - Goto, T.

AU - Suzuki, Takao

AU - Watanabe, I.

PY - 2006

Y1 - 2006

N2 - Muon-spin-rotation and -relaxation studies have been performed on (C H3) 2 CHN H3 Cu (Clx Br1-x) 3 with x=0.85 and 0.95, which are solid solutions of the two isomorphic spin-gap systems (C H3) 2 CHN H3 Cu Cl3 and (C H3) 2 CHN H3 Cu Br3 with different spin gaps. The sample with x=0.85 showed a clear muon spin rotation under zero-field below TN =11.65 K, indicating the existence of a long-range antiferromagnetic order. A critical exponent of the hyperfine field was obtained to be β=0.33, which agrees with 3D-Ising model. In the other sample with x=0.95, an anomalous enhancement of the muon spin relaxation was observed at very low temperatures indicating a critical slowing down due to a magnetic instability of the ground state.

AB - Muon-spin-rotation and -relaxation studies have been performed on (C H3) 2 CHN H3 Cu (Clx Br1-x) 3 with x=0.85 and 0.95, which are solid solutions of the two isomorphic spin-gap systems (C H3) 2 CHN H3 Cu Cl3 and (C H3) 2 CHN H3 Cu Br3 with different spin gaps. The sample with x=0.85 showed a clear muon spin rotation under zero-field below TN =11.65 K, indicating the existence of a long-range antiferromagnetic order. A critical exponent of the hyperfine field was obtained to be β=0.33, which agrees with 3D-Ising model. In the other sample with x=0.95, an anomalous enhancement of the muon spin relaxation was observed at very low temperatures indicating a critical slowing down due to a magnetic instability of the ground state.

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