Magnetic and superconducting properties of spin-fluctuation-limited superconducting nanoscale VNx

R. Zeng; J. Liu; G. D. Du; W. X. Li; J. L. Wang; J. Horvat; S. X. Dou

doi:10.1063/1.3679148

Magnetic and superconducting properties of spin-fluctuation-limited superconducting nanoscale VNx

R. Zeng, J. Liu, G. D. Du, W. X. Li, J. L. Wang, J. Horvat, S. X. Dou

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Abstract

VN x nanoparticles and nanowires have been prepared by nitrifying V 2O 5 nanoparticles (NP) and nanowires (NW). The V 2O 5 NP and NW were synthesized by a facile hydrothermal method. Magnetic susceptibility (X) and magnetization measurements showed long range superconducting ordering (LRSO) at the temperature of 5.8 K for NW, but there was no observation of LRSO (at least down to 2 K) for the NP sample, which is a much lower temperature than for the corresponding bulk, while both NP and NW showed the absence of long range magnetic ordering, at least down to 2 K. However, X the data showed that both samples possess a high Pauli-like component, X 0, in their susceptibility (X 0 ≈ 2.22 Ã 10 -4emu/mol for NP and 5 Ã 10 -4emu/mol for NW). Moreover, for the NW samples, X has a strong magnetic field dependence and presents a non-linear field-polarization feature, suggesting strong spin-orbit coupling.

Original language	English
Article number	Art. No.: 07E142
Number of pages	3
Journal	Journal of Applied Physics
Volume	111
Issue number	7
DOIs	https://doi.org/10.1063/1.3679148
Publication status	Published - 2012

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title = "Magnetic and superconducting properties of spin-fluctuation-limited superconducting nanoscale VNx",

abstract = "VN x nanoparticles and nanowires have been prepared by nitrifying V 2O 5 nanoparticles (NP) and nanowires (NW). The V 2O 5 NP and NW were synthesized by a facile hydrothermal method. Magnetic susceptibility (X) and magnetization measurements showed long range superconducting ordering (LRSO) at the temperature of 5.8 K for NW, but there was no observation of LRSO (at least down to 2 K) for the NP sample, which is a much lower temperature than for the corresponding bulk, while both NP and NW showed the absence of long range magnetic ordering, at least down to 2 K. However, X the data showed that both samples possess a high Pauli-like component, X 0, in their susceptibility (X 0 ≈ 2.22 {\~A} 10 -4emu/mol for NP and 5 {\~A} 10 -4emu/mol for NW). Moreover, for the NW samples, X has a strong magnetic field dependence and presents a non-linear field-polarization feature, suggesting strong spin-orbit coupling.",

author = "R. Zeng and J. Liu and Du, {G. D.} and Li, {W. X.} and Wang, {J. L.} and J. Horvat and Dou, {S. X.}",

year = "2012",

doi = "10.1063/1.3679148",

language = "English",

volume = "111",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "AIP Publishing ",

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TY - JOUR

T1 - Magnetic and superconducting properties of spin-fluctuation-limited superconducting nanoscale VNx

AU - Zeng, R.

AU - Liu, J.

AU - Du, G. D.

AU - Li, W. X.

AU - Wang, J. L.

AU - Horvat, J.

AU - Dou, S. X.

PY - 2012

Y1 - 2012

N2 - VN x nanoparticles and nanowires have been prepared by nitrifying V 2O 5 nanoparticles (NP) and nanowires (NW). The V 2O 5 NP and NW were synthesized by a facile hydrothermal method. Magnetic susceptibility (X) and magnetization measurements showed long range superconducting ordering (LRSO) at the temperature of 5.8 K for NW, but there was no observation of LRSO (at least down to 2 K) for the NP sample, which is a much lower temperature than for the corresponding bulk, while both NP and NW showed the absence of long range magnetic ordering, at least down to 2 K. However, X the data showed that both samples possess a high Pauli-like component, X 0, in their susceptibility (X 0 ≈ 2.22 Ã 10 -4emu/mol for NP and 5 Ã 10 -4emu/mol for NW). Moreover, for the NW samples, X has a strong magnetic field dependence and presents a non-linear field-polarization feature, suggesting strong spin-orbit coupling.

AB - VN x nanoparticles and nanowires have been prepared by nitrifying V 2O 5 nanoparticles (NP) and nanowires (NW). The V 2O 5 NP and NW were synthesized by a facile hydrothermal method. Magnetic susceptibility (X) and magnetization measurements showed long range superconducting ordering (LRSO) at the temperature of 5.8 K for NW, but there was no observation of LRSO (at least down to 2 K) for the NP sample, which is a much lower temperature than for the corresponding bulk, while both NP and NW showed the absence of long range magnetic ordering, at least down to 2 K. However, X the data showed that both samples possess a high Pauli-like component, X 0, in their susceptibility (X 0 ≈ 2.22 Ã 10 -4emu/mol for NP and 5 Ã 10 -4emu/mol for NW). Moreover, for the NW samples, X has a strong magnetic field dependence and presents a non-linear field-polarization feature, suggesting strong spin-orbit coupling.

UR - http://handle.uws.edu.au:8081/1959.7/528233

U2 - 10.1063/1.3679148

DO - 10.1063/1.3679148

M3 - Article

SN - 0021-8979

VL - 111

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 7

M1 - Art. No.: 07E142

ER -

Magnetic and superconducting properties of spin-fluctuation-limited superconducting nanoscale VNx

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