Absence of static magnetic order in lightly-doped Ti1-xSc xOCl down to 1.7 K

A. A. Aczel; G. J. MacDougall; F. L. Ning; J. A. Rodriguez; S. R. Saha; F. C. Chou; T. Imai; G. M. Luke

doi:10.1103/PhysRevB.83.134411

Absence of static magnetic order in lightly-doped Ti_1-xSc _xOCl down to 1.7 K

A. A. Aczel, G. J. MacDougall, F. L. Ning, J. A. Rodriguez, S. R. Saha, F. C. Chou, T. Imai, G. M. Luke

Research output: Contribution to journal › Article › peer-review

Abstract

Impurity-induced magnetic order has been observed in many quasi-1D systems including doped variants of the spin-Peierls system CuGeO₃. TiOCl is another quasi-1D quantum magnet with a spin-Peierls ground state, and the magnetic Ti sites of this system can be doped with nonmagnetic Sc. To investigate the role of nonmagnetic impurities in this system, we have performed both zero-field and longitudinal-field μSR experiments on polycrystalline Ti_1-xSc_xOCl samples with x=0, 0.01, and 0.03. We verified that TiOCl has a nonmagnetic ground state, and we found no evidence for spin freezing or magnetic ordering in the lightly-doped Sc samples down to 1.7 K. Our results instead suggest that these systems remain nonmagnetic up to the x=0.03 Sc doping level.

Original language	English (US)
Article number	134411
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	83
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.83.134411
State	Published - Apr 11 2011
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.83.134411

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Cite this

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title = "Absence of static magnetic order in lightly-doped Ti1-xSc xOCl down to 1.7 K",

abstract = "Impurity-induced magnetic order has been observed in many quasi-1D systems including doped variants of the spin-Peierls system CuGeO3. TiOCl is another quasi-1D quantum magnet with a spin-Peierls ground state, and the magnetic Ti sites of this system can be doped with nonmagnetic Sc. To investigate the role of nonmagnetic impurities in this system, we have performed both zero-field and longitudinal-field μSR experiments on polycrystalline Ti1-xScxOCl samples with x=0, 0.01, and 0.03. We verified that TiOCl has a nonmagnetic ground state, and we found no evidence for spin freezing or magnetic ordering in the lightly-doped Sc samples down to 1.7 K. Our results instead suggest that these systems remain nonmagnetic up to the x=0.03 Sc doping level.",

author = "Aczel, {A. A.} and MacDougall, {G. J.} and Ning, {F. L.} and Rodriguez, {J. A.} and Saha, {S. R.} and Chou, {F. C.} and T. Imai and Luke, {G. M.}",

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language = "English (US)",

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T1 - Absence of static magnetic order in lightly-doped Ti1-xSc xOCl down to 1.7 K

AU - Aczel, A. A.

AU - MacDougall, G. J.

AU - Ning, F. L.

AU - Rodriguez, J. A.

AU - Saha, S. R.

AU - Chou, F. C.

AU - Imai, T.

AU - Luke, G. M.

PY - 2011/4/11

Y1 - 2011/4/11

N2 - Impurity-induced magnetic order has been observed in many quasi-1D systems including doped variants of the spin-Peierls system CuGeO3. TiOCl is another quasi-1D quantum magnet with a spin-Peierls ground state, and the magnetic Ti sites of this system can be doped with nonmagnetic Sc. To investigate the role of nonmagnetic impurities in this system, we have performed both zero-field and longitudinal-field μSR experiments on polycrystalline Ti1-xScxOCl samples with x=0, 0.01, and 0.03. We verified that TiOCl has a nonmagnetic ground state, and we found no evidence for spin freezing or magnetic ordering in the lightly-doped Sc samples down to 1.7 K. Our results instead suggest that these systems remain nonmagnetic up to the x=0.03 Sc doping level.

AB - Impurity-induced magnetic order has been observed in many quasi-1D systems including doped variants of the spin-Peierls system CuGeO3. TiOCl is another quasi-1D quantum magnet with a spin-Peierls ground state, and the magnetic Ti sites of this system can be doped with nonmagnetic Sc. To investigate the role of nonmagnetic impurities in this system, we have performed both zero-field and longitudinal-field μSR experiments on polycrystalline Ti1-xScxOCl samples with x=0, 0.01, and 0.03. We verified that TiOCl has a nonmagnetic ground state, and we found no evidence for spin freezing or magnetic ordering in the lightly-doped Sc samples down to 1.7 K. Our results instead suggest that these systems remain nonmagnetic up to the x=0.03 Sc doping level.

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