Liquid-liquid transition in supercooled gallium alloys under nanoconfinement

Standard

Liquid-liquid transition in supercooled gallium alloys under nanoconfinement. / Nefedov, D. Y.; Podorozhkin, D. Y.; Charnaya, E. V.; Uskov, A. V.; Haase, J.; Kumzerov, Y. A.; Fokin, A. V.

In: Journal of physics. Condensed matter : an Institute of Physics journal, Vol. 31, No. 25, 255101, 26.06.2019, p. 255101.

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

Author

Nefedov, D. Y. ; Podorozhkin, D. Y. ; Charnaya, E. V. ; Uskov, A. V. ; Haase, J. ; Kumzerov, Y. A. ; Fokin, A. V. / Liquid-liquid transition in supercooled gallium alloys under nanoconfinement. In: Journal of physics. Condensed matter : an Institute of Physics journal. 2019 ; Vol. 31, No. 25. pp. 255101.

BibTeX

@article{bd10d25d59f84366ab3232a2c8ff30b6,

title = "Liquid-liquid transition in supercooled gallium alloys under nanoconfinement",

abstract = "NMR studies of the thermal evolution of the Ga-In-Sn and Ga-In liquid alloys embedded into opal matrices were carried out. Temperature dependences of the gallium lineshape, shift of the resonance frequency (Knight shift), and intensity were obtained upon cooling down to the alloy freezing and subsequent warming. A second high-frequency 71Ga NMR signal emerged for both alloys upon cooling, the NMR line intensity transferring gradually into this additional signal. The Knight shifts of the signals differed noticeably. The transformations of the gallium line upon warming were continuous and not affected by changes in the alloy compositions induced by melting. 115In NMR measurements were conducted to monitor the alloy compositions at freezing and melting. The findings suggest the occurrence of the liquid-liquid phase transition in the strongly supercooled alloys under nanoconfinement.",

keywords = "Gallium alloys, Knight shift, Liquid-liquid phase transition, NMR, Nanoconfinement, nanoconfinement, gallium alloys, PHASE-TRANSITIONS, POLYMORPHISM, liquid-liquid phase transition",

author = "Nefedov, {D. Y.} and Podorozhkin, {D. Y.} and Charnaya, {E. V.} and Uskov, {A. V.} and J. Haase and Kumzerov, {Y. A.} and Fokin, {A. V.}",

year = "2019",

month = jun,

day = "26",

doi = "10.1088/1361-648X/ab1111",

language = "English",

volume = "31",

pages = "255101",

journal = "Journal of Physics Condensed Matter",

issn = "0953-8984",

publisher = "IOP Publishing Ltd.",

number = "25",

}

RIS

TY - JOUR

T1 - Liquid-liquid transition in supercooled gallium alloys under nanoconfinement

AU - Nefedov, D. Y.

AU - Podorozhkin, D. Y.

AU - Charnaya, E. V.

AU - Uskov, A. V.

AU - Haase, J.

AU - Kumzerov, Y. A.

AU - Fokin, A. V.

PY - 2019/6/26

Y1 - 2019/6/26

N2 - NMR studies of the thermal evolution of the Ga-In-Sn and Ga-In liquid alloys embedded into opal matrices were carried out. Temperature dependences of the gallium lineshape, shift of the resonance frequency (Knight shift), and intensity were obtained upon cooling down to the alloy freezing and subsequent warming. A second high-frequency 71Ga NMR signal emerged for both alloys upon cooling, the NMR line intensity transferring gradually into this additional signal. The Knight shifts of the signals differed noticeably. The transformations of the gallium line upon warming were continuous and not affected by changes in the alloy compositions induced by melting. 115In NMR measurements were conducted to monitor the alloy compositions at freezing and melting. The findings suggest the occurrence of the liquid-liquid phase transition in the strongly supercooled alloys under nanoconfinement.

AB - NMR studies of the thermal evolution of the Ga-In-Sn and Ga-In liquid alloys embedded into opal matrices were carried out. Temperature dependences of the gallium lineshape, shift of the resonance frequency (Knight shift), and intensity were obtained upon cooling down to the alloy freezing and subsequent warming. A second high-frequency 71Ga NMR signal emerged for both alloys upon cooling, the NMR line intensity transferring gradually into this additional signal. The Knight shifts of the signals differed noticeably. The transformations of the gallium line upon warming were continuous and not affected by changes in the alloy compositions induced by melting. 115In NMR measurements were conducted to monitor the alloy compositions at freezing and melting. The findings suggest the occurrence of the liquid-liquid phase transition in the strongly supercooled alloys under nanoconfinement.

KW - Gallium alloys

KW - Knight shift

KW - Liquid-liquid phase transition

KW - NMR

KW - Nanoconfinement

KW - nanoconfinement

KW - gallium alloys

KW - PHASE-TRANSITIONS

KW - POLYMORPHISM

KW - liquid-liquid phase transition

UR - http://www.scopus.com/inward/record.url?scp=85065217955&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/liquidliquid-transition-supercooled-gallium-alloys-under-nanoconfinement

U2 - 10.1088/1361-648X/ab1111

DO - 10.1088/1361-648X/ab1111

M3 - Article

C2 - 30889565

AN - SCOPUS:85065217955

VL - 31

SP - 255101

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

SN - 0953-8984

IS - 25

M1 - 255101

ER -

ID: 42296671