### Abstract

The electronic theory of metallic system is used to investigate the effect of the local-field correction function for electron's screening and of the electron-ion pseudopotentials on the effective pair potential, structure and heat capacity (C_{P}′) of undercooled liquid Rb. C′_{P} is found to increase with decreasing T in the region T <T_{m}. The T dependence of C′_{P} is found to be consistent for different electron's screening functions and different pseudopotentials. The characteristic features of interatomic pair potentials and structure factors in the undercooled region are also discussed. The principal peak height of the structure factor reaches a height of 2.8 in the undercooled Rb at T = 185 K which is about 59% lower than T_{m}.

Original language | English |
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Pages (from-to) | 108-119 |

Number of pages | 12 |

Journal | Physica B: Physics of Condensed Matter |

Volume | 299 |

Issue number | 1-2 |

DOIs | |

Publication status | Published - May 2001 |

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### Keywords

- Electron screening
- Pseudopotential
- Specific heat
- Structure factor
- Undercooled liquid metals

### ASJC Scopus subject areas

- Materials Science(all)
- Condensed Matter Physics

### Cite this

**Effective pair potential, structure and heat capacity of undercooled liquid rubidium.** / Singh, R. N.; Jaju, R. P.; Ali, I.

Research output: Contribution to journal › Article

*Physica B: Physics of Condensed Matter*, vol. 299, no. 1-2, pp. 108-119. https://doi.org/10.1016/S0921-4526(00)00762-6

}

TY - JOUR

T1 - Effective pair potential, structure and heat capacity of undercooled liquid rubidium

AU - Singh, R. N.

AU - Jaju, R. P.

AU - Ali, I.

PY - 2001/5

Y1 - 2001/5

N2 - The electronic theory of metallic system is used to investigate the effect of the local-field correction function for electron's screening and of the electron-ion pseudopotentials on the effective pair potential, structure and heat capacity (CP′) of undercooled liquid Rb. C′P is found to increase with decreasing T in the region T <Tm. The T dependence of C′P is found to be consistent for different electron's screening functions and different pseudopotentials. The characteristic features of interatomic pair potentials and structure factors in the undercooled region are also discussed. The principal peak height of the structure factor reaches a height of 2.8 in the undercooled Rb at T = 185 K which is about 59% lower than Tm.

AB - The electronic theory of metallic system is used to investigate the effect of the local-field correction function for electron's screening and of the electron-ion pseudopotentials on the effective pair potential, structure and heat capacity (CP′) of undercooled liquid Rb. C′P is found to increase with decreasing T in the region T <Tm. The T dependence of C′P is found to be consistent for different electron's screening functions and different pseudopotentials. The characteristic features of interatomic pair potentials and structure factors in the undercooled region are also discussed. The principal peak height of the structure factor reaches a height of 2.8 in the undercooled Rb at T = 185 K which is about 59% lower than Tm.

KW - Electron screening

KW - Pseudopotential

KW - Specific heat

KW - Structure factor

KW - Undercooled liquid metals

UR - http://www.scopus.com/inward/record.url?scp=0035339501&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035339501&partnerID=8YFLogxK

U2 - 10.1016/S0921-4526(00)00762-6

DO - 10.1016/S0921-4526(00)00762-6

M3 - Article

VL - 299

SP - 108

EP - 119

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

IS - 1-2

ER -