Electron correlations on a mesoscopic scale: Magnetic properties of transition metal telluride cluster compounds

T. T.M. Palstra; M. L. Steigerwald; A. P. Ramirez; Y. U. Kwon; S. M. Stuczynski; L. F. Schneemeyer; J. V. Waszczak; J. Zaanen

doi:10.1103/PhysRevLett.71.1768

Electron correlations on a mesoscopic scale: Magnetic properties of transition metal telluride cluster compounds

T. T.M. Palstra^*, M. L. Steigerwald, A. P. Ramirez, Y. U. Kwon, S. M. Stuczynski, L. F. Schneemeyer, J. V. Waszczak, J. Zaanen

^*Corresponding author for this work

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Abstract

We report the magnetic properties of a new class of materials: Ni9Te6n+ and Co6Te8n+ with n=0, 1, 2. These cluster compounds, which can be charged by chemical means from neutral to 2+, provide a unique and novel way to change the Fermi level. For most charge states we observe quenching of the spin and orbital moments at low temperatures, accompanied by a large value for the temperature independent susceptibility of the ground state. The generic presence of low-energy magnetic excitations in these compounds indicates that these systems exhibit strong electron correlations and form mesoscopic analogs of the mixed-valence heavy-fermion compounds.

Original language	English
Pages (from-to)	1768-1771
Number of pages	4
Journal	Physical review letters
Volume	71
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.71.1768
Publication status	Published - 1 Jan 1993
Externally published	Yes

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title = "Electron correlations on a mesoscopic scale: Magnetic properties of transition metal telluride cluster compounds",

abstract = "We report the magnetic properties of a new class of materials: Ni9Te6n+ and Co6Te8n+ with n=0, 1, 2. These cluster compounds, which can be charged by chemical means from neutral to 2+, provide a unique and novel way to change the Fermi level. For most charge states we observe quenching of the spin and orbital moments at low temperatures, accompanied by a large value for the temperature independent susceptibility of the ground state. The generic presence of low-energy magnetic excitations in these compounds indicates that these systems exhibit strong electron correlations and form mesoscopic analogs of the mixed-valence heavy-fermion compounds.",

author = "Palstra, {T. T.M.} and Steigerwald, {M. L.} and Ramirez, {A. P.} and Kwon, {Y. U.} and Stuczynski, {S. M.} and Schneemeyer, {L. F.} and Waszczak, {J. V.} and J. Zaanen",

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T1 - Electron correlations on a mesoscopic scale

T2 - Magnetic properties of transition metal telluride cluster compounds

AU - Palstra, T. T.M.

AU - Steigerwald, M. L.

AU - Ramirez, A. P.

AU - Kwon, Y. U.

AU - Stuczynski, S. M.

AU - Schneemeyer, L. F.

AU - Waszczak, J. V.

AU - Zaanen, J.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - We report the magnetic properties of a new class of materials: Ni9Te6n+ and Co6Te8n+ with n=0, 1, 2. These cluster compounds, which can be charged by chemical means from neutral to 2+, provide a unique and novel way to change the Fermi level. For most charge states we observe quenching of the spin and orbital moments at low temperatures, accompanied by a large value for the temperature independent susceptibility of the ground state. The generic presence of low-energy magnetic excitations in these compounds indicates that these systems exhibit strong electron correlations and form mesoscopic analogs of the mixed-valence heavy-fermion compounds.

AB - We report the magnetic properties of a new class of materials: Ni9Te6n+ and Co6Te8n+ with n=0, 1, 2. These cluster compounds, which can be charged by chemical means from neutral to 2+, provide a unique and novel way to change the Fermi level. For most charge states we observe quenching of the spin and orbital moments at low temperatures, accompanied by a large value for the temperature independent susceptibility of the ground state. The generic presence of low-energy magnetic excitations in these compounds indicates that these systems exhibit strong electron correlations and form mesoscopic analogs of the mixed-valence heavy-fermion compounds.

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DO - 10.1103/PhysRevLett.71.1768

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EP - 1771

JO - Physical review letters

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Electron correlations on a mesoscopic scale: Magnetic properties of transition metal telluride cluster compounds

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