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

Chemistry and Biochemistry

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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
State	Published - 1993

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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",

year = "1993",

doi = "10.1103/PhysRevLett.71.1768",

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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

Y1 - 1993

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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VL - 71

SP - 1768

EP - 1771

JO - Physical Review Letters

JF - Physical Review Letters

IS - 11

ER -

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

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