Bonding nature in MgB2

Eiji Nishibori; Masaki Takata; Makoto Sakata; Hiroshi Tanaka; Takahiro Muranaka; Jim Akimitsu

doi:10.1143/JPSJ.70.2252

Bonding nature in MgB₂

Eiji Nishibori, Masaki Takata, Makoto Sakata, Hiroshi Tanaka, Takahiro Muranaka, Jim Akimitsu

Research output: Contribution to journal › Article › peer-review

56 Citations (Scopus)

Abstract

The accurate charge density of MgB₂ was observed at room temperature (R.T.) and 15 K by the maximum entropy method (MEM)/Rietveld analysis using synchrotron radiation powder data. The obtained charge density clearly revealed the covalent bonding feature of boron forming the 2D honeycomb network in the basal plane, on the other hand, Mg is found to be in divalent state. A subtle but clear charge concentration was found on boron 2D sheets at 15 K, which should be related to superconductivity.

Original language	English
Pages (from-to)	2252-2254
Number of pages	3
Journal	journal of the physical society of japan
Volume	70
Issue number	8
DOIs	https://doi.org/10.1143/JPSJ.70.2252
Publication status	Published - Aug 2001
Externally published	Yes

Keywords

Bonding nature
Charge density
Maximum entropy method
Mgb
Superconductivity
Synchrotron radiation

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.70.2252

Cite this

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title = "Bonding nature in MgB2",

abstract = "The accurate charge density of MgB2 was observed at room temperature (R.T.) and 15 K by the maximum entropy method (MEM)/Rietveld analysis using synchrotron radiation powder data. The obtained charge density clearly revealed the covalent bonding feature of boron forming the 2D honeycomb network in the basal plane, on the other hand, Mg is found to be in divalent state. A subtle but clear charge concentration was found on boron 2D sheets at 15 K, which should be related to superconductivity.",

keywords = "Bonding nature, Charge density, Maximum entropy method, Mgb, Superconductivity, Synchrotron radiation",

author = "Eiji Nishibori and Masaki Takata and Makoto Sakata and Hiroshi Tanaka and Takahiro Muranaka and Jim Akimitsu",

year = "2001",

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language = "English",

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pages = "2252--2254",

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T1 - Bonding nature in MgB2

AU - Nishibori, Eiji

AU - Takata, Masaki

AU - Sakata, Makoto

AU - Tanaka, Hiroshi

AU - Muranaka, Takahiro

AU - Akimitsu, Jim

PY - 2001/8

Y1 - 2001/8

N2 - The accurate charge density of MgB2 was observed at room temperature (R.T.) and 15 K by the maximum entropy method (MEM)/Rietveld analysis using synchrotron radiation powder data. The obtained charge density clearly revealed the covalent bonding feature of boron forming the 2D honeycomb network in the basal plane, on the other hand, Mg is found to be in divalent state. A subtle but clear charge concentration was found on boron 2D sheets at 15 K, which should be related to superconductivity.

AB - The accurate charge density of MgB2 was observed at room temperature (R.T.) and 15 K by the maximum entropy method (MEM)/Rietveld analysis using synchrotron radiation powder data. The obtained charge density clearly revealed the covalent bonding feature of boron forming the 2D honeycomb network in the basal plane, on the other hand, Mg is found to be in divalent state. A subtle but clear charge concentration was found on boron 2D sheets at 15 K, which should be related to superconductivity.

KW - Bonding nature

KW - Charge density

KW - Maximum entropy method

KW - Mgb

KW - Superconductivity

KW - Synchrotron radiation

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