Ultrafast X-ray imaging of the light-induced phase transition in VO2

被引：61

作者：

Johnson, Allan S. ^{[1
]}

Perez-Salinas, Daniel ^{[1
]}

Siddiqui, Khalid M. ^{[2
]}

Kim, Sungwon ^{[3
]}

Choi, Sungwook ^{[3
]}

Volckaert, Klara ^{[2
]}

Majchrzak, Paulina E. ^{[2
]}

Ulstrup, Soren ^{[2
]}

Agarwal, Naman ^{[2
]}

Hallman, Kent ^{[4
]}

Haglund, Richard F. ^{[4
]}

Guenther, Christian M. ^{[5
]}

Pfau, Bastian ^{[6
]}

Eisebitt, Stefan ^{[6
,7
]}

Backes, Dirk ^{[8
]}

Maccherozzi, Francesco ^{[8
]}

Fitzpatrick, Ann ^{[8
]}

Dhesi, Sarnjeet S. ^{[8
]}

Gargiani, Pierluigi ^{[9
]}

Valvidares, Manuel ^{[9
]}

Artrith, Nongnuch ^{[10
]}

de Groot, Frank ^{[10
]}

Choi, Hyeongi ^{[11
]}

Jang, Dogeun ^{[11
]}

Katoch, Abhishek ^{[11
]}

Kwon, Soonnam ^{[11
]}

Park, Sang Han ^{[11
]}

Kim, Hyunjung ^{[3
]}

Wall, Simon E. ^{[2
]}

机构：

[1] Barcelona Inst Sci & Technol, ICFO Inst Ciencies Foton, Barcelona, Spain

[2] Aarhus Univ, Dept Phys & Astron, Aarhus, Denmark

[3] Sogang Univ, Dept Phys, Seoul, South Korea

[4] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

[5] Tech Univ Berlin, Zentraleinrichtung Elektronenmikroskopie ZELMI, Berlin, Germany

[6] Max Born Inst, Berlin, Germany

[7] Tech Univ Berlin, Inst Opt & Atomare Phys, Berlin, Germany

[8] Diamond Light Source, Didcot, Oxon, England

[9] ALBA Synchrotron Light Source, Barcelona, Spain

[10] Univ Utrecht, Mat Chem & Catalysis, Utrecht, Netherlands

[11] Pohang Accelerator Lab, Pohang, South Korea

来源：

NATURE PHYSICS | 2023年 / 19卷 / 02期

基金：

美国国家科学基金会; 新加坡国家研究基金会; 欧洲研究理事会;

关键词：

DIFFRACTION; LASER;

D O I：

10.1038/s41567-022-01848-w

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using light to control transient phases in quantum materials is an emerging route to engineer new properties and functionality, with both thermal and non-thermal phases observed out of equilibrium. Transient phases are expected to be heterogeneous, either through photo-generated domain growth or by generating topological defects, and this impacts the dynamics of the system. However, this nanoscale heterogeneity has not been directly observed. Here we use time- and spectrally resolved coherent X-ray imaging to track the prototypical light-induced insulator-to-metal phase transition in vanadium dioxide on the nanoscale with femtosecond time resolution. We show that the early-time dynamics are independent of the initial spatial heterogeneity and observe a 200 fs switch to the metallic phase. A heterogeneous response emerges only after hundreds of picoseconds. Through spectroscopic imaging, we reveal that the transient metallic phase is a highly orthorhombically strained rutile metallic phase, an interpretation that is in contrast to those based on spatially averaged probes. Our results demonstrate the critical importance of spatially and spectrally resolved measurements for understanding and interpreting the transient phases of quantum materials.

引用

页码：215 / +

页数：16

共 53 条

[1] SOFT-X-RAY ABSORPTION-SPECTROSCOPY OF VANADIUM-OXIDES [J].

ABBATE, M ;

PEN, H ;

CZYZYK, MT ;

DEGROOT, FMF ;

FUGGLE, JC ;

MA, YJ ;

CHEN, CT ;

SETTE, F ;

FUJIMORI, A ;

UEDA, Y ;

KOSUGE, K .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1993, 62 (1-2) :185-195

[2] Ultrafast electron-lattice coupling dynamics in VO2 and V2O3 thin films [J].

Abreu, Elsa ;

Corder, Stephanie N. Gilbert ;

Yun, Sun Jin ;

Wang, Siming ;

Ramirez, Juan Gabriel ;

West, Kevin ;

Zhang, Jingdi ;

Kittiwatanakul, Salinporn ;

Schuller, Ivan K. ;

Lu, Jiwei ;

Wolf, Stuart A. ;

Kim, Hyun-Tak ;

Liu, Mengkun ;

Averitt, Richard D. .

PHYSICAL REVIEW B, 2017, 96 (09)

[3] Dynamic conductivity scaling in photoexcited V2O3 thin films [J].

Abreu, Elsa ;

Wang, Siming ;

Ramirez, Juan Gabriel ;

Liu, Mengkun ;

Zhang, Jingdi ;

Geng, Kun ;

Schuller, Ivan K. ;

Averitt, Richard D. .

PHYSICAL REVIEW B, 2015, 92 (08)

[4]

Basov DN, 2017, NAT MATER, V16, P1077, DOI [10.1038/nmat5017, 10.1038/NMAT5017]

[5] 4D visualization of transitional structures in phase transformations by electron diffraction [J].

Baum, Peter ;

Yang, Ding-Shyue ;

Zewail, Ahmed H. .

SCIENCE, 2007, 318 (5851) :788-792

[6]

Bertoni R, 2016, NAT MATER, V15, P606, DOI [10.1038/nmat4606, 10.1038/NMAT4606]

[7] PROJECTOR AUGMENTED-WAVE METHOD [J].

BLOCHL, PE .

PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979

[8] Band-selective measurements of electron dynamics in VO2 using femtosecond near-edge x-ray absorption -: art. no. 067405 [J].

Cavalleri, A ;

Rini, M ;

Chong, HHW ;

Fourmaux, S ;

Glover, TE ;

Heimann, PA ;

Kieffer, JC ;

Schoenlein, RW .

PHYSICAL REVIEW LETTERS, 2005, 95 (06)

[9] Picosecond soft x-ray absorption measurement of the photoinduced insulator-to-metal transition in VO2 -: art. no. 153106 [J].

Cavalleri, A ;

Chong, HHW ;

Fourmaux, S ;

Glover, TE ;

Heimann, PA ;

Kieffer, JC ;

Mun, BS ;

Padmore, HA ;

Schoenlein, RW .

PHYSICAL REVIEW B, 2004, 69 (15) :153106-1

[10] Femtosecond structural dynamics in VO2 during an ultrafast solid-solid phase transition -: art. no. 237401 [J].

Cavalleri, A ;

Tóth, C ;

Siders, CW ;

Squier, JA ;

Ráksi, F ;

Forget, P ;

Kieffer, JC .

PHYSICAL REVIEW LETTERS, 2001, 87 (23) :237401-1

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