Unusually large magnetic moments in the normal state and superconducting state of Sn nanoparticles

Chi Hang Hung; Chi Hung Lee; Chien Kang Hsu; Chi Yen Li; Sunil K. Karna; Chin Wei Wang; Chun Ming Wu; Wen Hsien Li

doi:10.1007/s11051-013-1905-x

Unusually large magnetic moments in the normal state and superconducting state of Sn nanoparticles

Chi Hang Hung, Chi Hung Lee, Chien Kang Hsu, Chi Yen Li, Sunil K. Karna, Chin Wei Wang, Chun Ming Wu, Wen Hsien Li

物理學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

5 引文斯高帕斯（Scopus）

摘要

We report on the observations of spontaneous magnetic moments in the normal as well as in the superconducting states of a 9 nm Sn nanoparticle assembly, through X-ray diffraction, magnetization, ac magnetic susceptibility, and neutron diffraction measurements. The saturation magnetization reaches an unexpectedly large value of 1.04 emu/g at 5 K, with a temperature profile that can be described by Bloch's law with an exponent of b = 1.8. A magnetic moment of 〈μ_Z〉 = 0.38 μ_B develops after cooling from 260 to 4 K. Superconductivity develops below T_C = 3.98 K, which is 7 % higher than the T_C = 3.72 K of bulk Sn. Surprisingly, an addition magnetic moment of 〈μ_Z〉 = 0.05 μ_B develops upon entering the superconducting state.

原文	???core.languages.en_GB???
文章編號	1905
期刊	Journal of Nanoparticle Research
卷	15
發行號	9
DOIs	https://doi.org/10.1007/s11051-013-1905-x
出版狀態	已出版 - 9月 2013

存取文件

10.1007/s11051-013-1905-x

引用此

@article{44d10fc9333f42d5b896487a5b1a0129,

title = "Unusually large magnetic moments in the normal state and superconducting state of Sn nanoparticles",

abstract = "We report on the observations of spontaneous magnetic moments in the normal as well as in the superconducting states of a 9 nm Sn nanoparticle assembly, through X-ray diffraction, magnetization, ac magnetic susceptibility, and neutron diffraction measurements. The saturation magnetization reaches an unexpectedly large value of 1.04 emu/g at 5 K, with a temperature profile that can be described by Bloch's law with an exponent of b = 1.8. A magnetic moment of 〈μZ〉 = 0.38 μB develops after cooling from 260 to 4 K. Superconductivity develops below TC = 3.98 K, which is 7 % higher than the TC = 3.72 K of bulk Sn. Surprisingly, an addition magnetic moment of 〈μZ〉 = 0.05 μB develops upon entering the superconducting state.",

keywords = "Ferromagnetism, Sn nanoparticle, Superconductivity",

author = "Hung, {Chi Hang} and Lee, {Chi Hung} and Hsu, {Chien Kang} and Li, {Chi Yen} and Karna, {Sunil K.} and Wang, {Chin Wei} and Wu, {Chun Ming} and Li, {Wen Hsien}",

note = "Funding Information: Acknowledgments We thank ANSTO for providing Wombat beam time that makes neutron diffraction measurements possible. This study was supported by the National Science Council of Taiwan under Grant No. NSC 101-2112-M-008-016-MY3.",

year = "2013",

month = sep,

doi = "10.1007/s11051-013-1905-x",

language = "???core.languages.en_GB???",

volume = "15",

journal = "Journal of Nanoparticle Research",

issn = "1388-0764",

number = "9",

}

TY - JOUR

T1 - Unusually large magnetic moments in the normal state and superconducting state of Sn nanoparticles

AU - Hung, Chi Hang

AU - Lee, Chi Hung

AU - Hsu, Chien Kang

AU - Li, Chi Yen

AU - Karna, Sunil K.

AU - Wang, Chin Wei

AU - Wu, Chun Ming

AU - Li, Wen Hsien

N1 - Funding Information: Acknowledgments We thank ANSTO for providing Wombat beam time that makes neutron diffraction measurements possible. This study was supported by the National Science Council of Taiwan under Grant No. NSC 101-2112-M-008-016-MY3.

PY - 2013/9

Y1 - 2013/9

N2 - We report on the observations of spontaneous magnetic moments in the normal as well as in the superconducting states of a 9 nm Sn nanoparticle assembly, through X-ray diffraction, magnetization, ac magnetic susceptibility, and neutron diffraction measurements. The saturation magnetization reaches an unexpectedly large value of 1.04 emu/g at 5 K, with a temperature profile that can be described by Bloch's law with an exponent of b = 1.8. A magnetic moment of 〈μZ〉 = 0.38 μB develops after cooling from 260 to 4 K. Superconductivity develops below TC = 3.98 K, which is 7 % higher than the TC = 3.72 K of bulk Sn. Surprisingly, an addition magnetic moment of 〈μZ〉 = 0.05 μB develops upon entering the superconducting state.

AB - We report on the observations of spontaneous magnetic moments in the normal as well as in the superconducting states of a 9 nm Sn nanoparticle assembly, through X-ray diffraction, magnetization, ac magnetic susceptibility, and neutron diffraction measurements. The saturation magnetization reaches an unexpectedly large value of 1.04 emu/g at 5 K, with a temperature profile that can be described by Bloch's law with an exponent of b = 1.8. A magnetic moment of 〈μZ〉 = 0.38 μB develops after cooling from 260 to 4 K. Superconductivity develops below TC = 3.98 K, which is 7 % higher than the TC = 3.72 K of bulk Sn. Surprisingly, an addition magnetic moment of 〈μZ〉 = 0.05 μB develops upon entering the superconducting state.

KW - Ferromagnetism

KW - Sn nanoparticle

KW - Superconductivity

UR - http://www.scopus.com/inward/record.url?scp=84881033536&partnerID=8YFLogxK

U2 - 10.1007/s11051-013-1905-x

DO - 10.1007/s11051-013-1905-x

M3 - 期刊論文

AN - SCOPUS:84881033536

SN - 1388-0764

VL - 15

JO - Journal of Nanoparticle Research

JF - Journal of Nanoparticle Research

IS - 9

M1 - 1905

ER -

Unusually large magnetic moments in the normal state and superconducting state of Sn nanoparticles

摘要

存取文件

指紋

引用此