NMR studies of layered superconductor Li0.48(THF)yHfNCl

H. Tou; D. Omata; Y. Maniwa; K. Itoh; S. Yamanaka

doi:10.1016/S0921-4534(00)01079-0

NMR studies of layered superconductor Li_0.48(THF)_yHfNCl

H. Tou, D. Omata, Y. Maniwa, K. Itoh, S. Yamanaka

Research output: Contribution to journal › Conference article › peer-review

11 Citations (Scopus)

Abstract

⁷Li and ¹H-NMR measurements were carried out for a layered superconductor Li_0.48(THF)_yHfNCl which shows superconductivity at T_c approx. 23.5 K. We report the characteristic superconducting parameters such as, the penetration depth (λ), the coherence length (ξ), lower critical field (H_c1), and upper critical field (H_c2). From ⁷Li-NMR studies, it is suggested that the Fermi level density of states at the intermediate Li site are considerably small and the superconductivity is derived from the HfNCl layer.

Original language	English
Pages (from-to)	2139-2140
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	341-348 (IV)
DOIs	https://doi.org/10.1016/S0921-4534(00)01079-0
Publication status	Published - 2000 Nov
Externally published	Yes
Event	International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI - Houston, TX, USA Duration: 2000 Feb 20 → 2000 Feb 25

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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title = "NMR studies of layered superconductor Li0.48(THF)yHfNCl",

abstract = "7Li and 1H-NMR measurements were carried out for a layered superconductor Li0.48(THF)yHfNCl which shows superconductivity at Tc approx. 23.5 K. We report the characteristic superconducting parameters such as, the penetration depth (λ), the coherence length (ξ), lower critical field (Hc1), and upper critical field (Hc2). From 7Li-NMR studies, it is suggested that the Fermi level density of states at the intermediate Li site are considerably small and the superconductivity is derived from the HfNCl layer.",

author = "H. Tou and D. Omata and Y. Maniwa and K. Itoh and S. Yamanaka",

note = "Funding Information: the demagnetizatifoanc tor,N --1/3. VariousS C parameterasr es ummarizeidn Table I. Togethewr ith the experimentafal ct that 1H-, 7Li-NMR signals were observeda roundzero Knight shift, the Fermi level densityo f states, N(EF), at Li and H sitesa rec onsiderablsym all, suggestintgh atthe HfNCl-layerp laysan important role in occurrencoef the superconductivity in this system. Furtherd etailsw ill be reported elsewhere. This work was supportedin part by Grants from the Ministry of EducationS, port, Science and Culturei n Japan, and by tile Fund for Special ResearchP rojectso f TMU.; International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI ; Conference date: 20-02-2000 Through 25-02-2000",

year = "2000",

month = nov,

doi = "10.1016/S0921-4534(00)01079-0",

language = "English",

volume = "341-348 (IV)",

pages = "2139--2140",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

}

TY - JOUR

T1 - NMR studies of layered superconductor Li0.48(THF)yHfNCl

AU - Tou, H.

AU - Omata, D.

AU - Maniwa, Y.

AU - Itoh, K.

AU - Yamanaka, S.

N1 - Funding Information: the demagnetizatifoanc tor,N --1/3. VariousS C parameterasr es ummarizeidn Table I. Togethewr ith the experimentafal ct that 1H-, 7Li-NMR signals were observeda roundzero Knight shift, the Fermi level densityo f states, N(EF), at Li and H sitesa rec onsiderablsym all, suggestintgh atthe HfNCl-layerp laysan important role in occurrencoef the superconductivity in this system. Furtherd etailsw ill be reported elsewhere. This work was supportedin part by Grants from the Ministry of EducationS, port, Science and Culturei n Japan, and by tile Fund for Special ResearchP rojectso f TMU.

PY - 2000/11

Y1 - 2000/11

N2 - 7Li and 1H-NMR measurements were carried out for a layered superconductor Li0.48(THF)yHfNCl which shows superconductivity at Tc approx. 23.5 K. We report the characteristic superconducting parameters such as, the penetration depth (λ), the coherence length (ξ), lower critical field (Hc1), and upper critical field (Hc2). From 7Li-NMR studies, it is suggested that the Fermi level density of states at the intermediate Li site are considerably small and the superconductivity is derived from the HfNCl layer.

AB - 7Li and 1H-NMR measurements were carried out for a layered superconductor Li0.48(THF)yHfNCl which shows superconductivity at Tc approx. 23.5 K. We report the characteristic superconducting parameters such as, the penetration depth (λ), the coherence length (ξ), lower critical field (Hc1), and upper critical field (Hc2). From 7Li-NMR studies, it is suggested that the Fermi level density of states at the intermediate Li site are considerably small and the superconductivity is derived from the HfNCl layer.

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U2 - 10.1016/S0921-4534(00)01079-0

DO - 10.1016/S0921-4534(00)01079-0

M3 - Conference article

AN - SCOPUS:0342962098

VL - 341-348 (IV)

SP - 2139

EP - 2140

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

T2 - International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI

Y2 - 20 February 2000 through 25 February 2000

ER -

NMR studies of layered superconductor Li_0.48(THF)_yHfNCl

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