Crystal growth of C-doped MgB2 superconductors: Accidental doping and inhomogeneity

Sergey Lee; Takahiko Masui; Ayako Yamamoto; Hiroshi Uchiyama; Setsuko Tajima

doi:10.1016/j.physc.2004.01.036

Crystal growth of C-doped MgB₂ superconductors: Accidental doping and inhomogeneity

Sergey Lee, Takahiko Masui, Ayako Yamamoto, Hiroshi Uchiyama, Setsuko Tajima

Global course of Engineering and Science

Research output: Contribution to journal › Article

62 Citations (Scopus)

Abstract

Here, we discuss the possibility of accidental C-doping of MgB₂ crystals and inhomogeneous C distribution of Mg(B_1-xC _x)₂ single crystals with x=0.02-0.125 grown under high pressure. Structure refinement was performed on the heavily C-doped crystal with x=0.125 which has confirmed no evidence of microscopic phase separation. Resistivity and magnetization measurements were also preformed on several of as-grown and post-annealed crystals with a inhomogeneous C distribution.

Original language	English
Pages (from-to)	31-35
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	412-414
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2004.01.036
Publication status	Published - 2004 Oct 1

Fingerprint

Keywords

Carbon doping
Chemical inhomogeneity
Crystals structure
Magnesium diboride

ASJC Scopus subject areas

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

Cite this

Lee, S., Masui, T., Yamamoto, A., Uchiyama, H., & Tajima, S. (2004). Crystal growth of C-doped MgB₂ superconductors: Accidental doping and inhomogeneity. Physica C: Superconductivity and its applications, 412-414(SPEC. ISS.), 31-35. https://doi.org/10.1016/j.physc.2004.01.036

@article{217ce6ec01ad4a1c9e45c8fff7c0e133,

title = "Crystal growth of C-doped MgB2 superconductors: Accidental doping and inhomogeneity",

abstract = "Here, we discuss the possibility of accidental C-doping of MgB2 crystals and inhomogeneous C distribution of Mg(B1-xC x)2 single crystals with x=0.02-0.125 grown under high pressure. Structure refinement was performed on the heavily C-doped crystal with x=0.125 which has confirmed no evidence of microscopic phase separation. Resistivity and magnetization measurements were also preformed on several of as-grown and post-annealed crystals with a inhomogeneous C distribution.",

keywords = "Carbon doping, Chemical inhomogeneity, Crystals structure, Magnesium diboride",

author = "Sergey Lee and Takahiko Masui and Ayako Yamamoto and Hiroshi Uchiyama and Setsuko Tajima",

year = "2004",

month = oct

day = "1",

doi = "10.1016/j.physc.2004.01.036",

language = "English",

volume = "412-414",

pages = "31--35",

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

issn = "0921-4534",

publisher = "Elsevier",

number = "SPEC. ISS.",

}

TY - JOUR

T1 - Crystal growth of C-doped MgB2 superconductors

T2 - Accidental doping and inhomogeneity

AU - Lee, Sergey

AU - Masui, Takahiko

AU - Yamamoto, Ayako

AU - Uchiyama, Hiroshi

AU - Tajima, Setsuko

PY - 2004/10/1

Y1 - 2004/10/1

N2 - Here, we discuss the possibility of accidental C-doping of MgB2 crystals and inhomogeneous C distribution of Mg(B1-xC x)2 single crystals with x=0.02-0.125 grown under high pressure. Structure refinement was performed on the heavily C-doped crystal with x=0.125 which has confirmed no evidence of microscopic phase separation. Resistivity and magnetization measurements were also preformed on several of as-grown and post-annealed crystals with a inhomogeneous C distribution.

AB - Here, we discuss the possibility of accidental C-doping of MgB2 crystals and inhomogeneous C distribution of Mg(B1-xC x)2 single crystals with x=0.02-0.125 grown under high pressure. Structure refinement was performed on the heavily C-doped crystal with x=0.125 which has confirmed no evidence of microscopic phase separation. Resistivity and magnetization measurements were also preformed on several of as-grown and post-annealed crystals with a inhomogeneous C distribution.

KW - Carbon doping

KW - Chemical inhomogeneity

KW - Crystals structure

KW - Magnesium diboride

UR - http://www.scopus.com/inward/record.url?scp=4644332375&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4644332375&partnerID=8YFLogxK

U2 - 10.1016/j.physc.2004.01.036

DO - 10.1016/j.physc.2004.01.036

M3 - Article

AN - SCOPUS:4644332375

VL - 412-414

SP - 31

EP - 35

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - SPEC. ISS.

ER -

Access to Document

10.1016/j.physc.2004.01.036