Pressure-induced insulator-to-metal transition in α-SnWO4

Alexei Kuzmin; Andris Anspoks; Aleksandr Kalinko; Janis Timoshenko; Robert Kalendarev; Lucie Nataf; François Baudelet; Tetsuo Irifune; Pascale Roy

doi:10.1088/1742-6596/712/1/012122

Pressure-induced insulator-to-metal transition in α-SnWO₄

Alexei Kuzmin
, Andris Anspoks
, Aleksandr Kalinko
, Janis Timoshenko
, Robert Kalendarev
, Lucie Nataf
, François Baudelet
, Tetsuo Irifune
, Pascale Roy

EXAFS Spectroscopy Laboratory, Institute of Solid State Physics

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

5 Citations (Scopus)

Abstract

In-situ high-pressure W L₁ and L₃ edges x-ray absorption and mid-infrared spectroscopies complemented by first-principles calculations suggest the existence of pressure- induced insulator-to-metal transition in α-SnWO₄ in the range of 5-7 GPa. Its origin is explained by a symmetrization of metal-oxygen octahedra due to a strong interaction of Sn 5s, W 5d and O 2p states along the b-axis direction, leading to a collapse of the band gap.

Original language	English
Article number	012122
Journal	Journal of Physics: Conference Series
Volume	712
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/712/1/012122
Publication status	Published - 2016
Event	16th International Conference on X-Ray Absorption Fine Structure, XAFS 2015 - Karlsruhe, Germany Duration: 23 Aug 2015 → 28 Aug 2015

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10.1088/1742-6596/712/1/012122

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title = "Pressure-induced insulator-to-metal transition in α-SnWO4",

abstract = "In-situ high-pressure W L1 and L3 edges x-ray absorption and mid-infrared spectroscopies complemented by first-principles calculations suggest the existence of pressure- induced insulator-to-metal transition in α-SnWO4 in the range of 5-7 GPa. Its origin is explained by a symmetrization of metal-oxygen octahedra due to a strong interaction of Sn 5s, W 5d and O 2p states along the b-axis direction, leading to a collapse of the band gap.",

author = "Alexei Kuzmin and Andris Anspoks and Aleksandr Kalinko and Janis Timoshenko and Robert Kalendarev and Lucie Nataf and Fran{\c c}ois Baudelet and Tetsuo Irifune and Pascale Roy",

year = "2016",

doi = "10.1088/1742-6596/712/1/012122",

language = "English",

volume = "712",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

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number = "1",

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TY - JOUR

T1 - Pressure-induced insulator-to-metal transition in α-SnWO4

AU - Kuzmin, Alexei

AU - Anspoks, Andris

AU - Kalinko, Aleksandr

AU - Timoshenko, Janis

AU - Kalendarev, Robert

AU - Nataf, Lucie

AU - Baudelet, François

AU - Irifune, Tetsuo

AU - Roy, Pascale

PY - 2016

Y1 - 2016

N2 - In-situ high-pressure W L1 and L3 edges x-ray absorption and mid-infrared spectroscopies complemented by first-principles calculations suggest the existence of pressure- induced insulator-to-metal transition in α-SnWO4 in the range of 5-7 GPa. Its origin is explained by a symmetrization of metal-oxygen octahedra due to a strong interaction of Sn 5s, W 5d and O 2p states along the b-axis direction, leading to a collapse of the band gap.

AB - In-situ high-pressure W L1 and L3 edges x-ray absorption and mid-infrared spectroscopies complemented by first-principles calculations suggest the existence of pressure- induced insulator-to-metal transition in α-SnWO4 in the range of 5-7 GPa. Its origin is explained by a symmetrization of metal-oxygen octahedra due to a strong interaction of Sn 5s, W 5d and O 2p states along the b-axis direction, leading to a collapse of the band gap.

UR - https://www.scopus.com/pages/publications/84978699272

U2 - 10.1088/1742-6596/712/1/012122

DO - 10.1088/1742-6596/712/1/012122

M3 - Conference article

AN - SCOPUS:84978699272

SN - 1742-6588

VL - 712

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012122

T2 - 16th International Conference on X-Ray Absorption Fine Structure, XAFS 2015

Y2 - 23 August 2015 through 28 August 2015

ER -

Pressure-induced insulator-to-metal transition in α-SnWO₄

Abstract

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