Nano Letters
DOI: 10.1021/acs.nanolett.3c01974
Alfred Jones
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30 Aug 12:49
[ASAP] Direct Visualization of the Charge Transfer in a Graphene/α-RuCl3 Heterostructure via Angle-Resolved Photoemission Spectroscopy
by Antonio Rossi, Cameron Johnson, Jesse Balgley, John C. Thomas, Luca Francaviglia, Riccardo Dettori, Andreas K. Schmid, Kenji Watanabe, Takashi Taniguchi, Matthew Cothrine, David G. Mandrus, Chris Jozwiak, Aaron Bostwick, Erik A. Henriksen, Alexander Weber-Bargioni, and Eli Rotenberg
30 Aug 12:48
[ASAP] A Peripheral-Free True Random Number Generator Based on Integrated Circuits Enabled by Atomically Thin Two-Dimensional Materials
by Harikrishnan Ravichandran, Dipanjan Sen, Akshay Wali, Thomas F. Schranghamer, Nicholas Trainor, Joan M. Redwing, Biswajit Ray, and Saptarshi Das
ACS Nano
DOI: 10.1021/acsnano.3c03581
21 Aug 07:55
[ASAP] Switching the Moiré Lattice Models in the Twisted Bilayer WSe2 by Strain or Pressure
by Yifan Gao, Qiaoling Xu, M. Umar Farooq, Lede Xian, and Li Huang
Nano Letters
DOI: 10.1021/acs.nanolett.3c01756
18 Aug 09:06
[ASAP] Quantum Confinement and Electronic Structure at the Surface of van der Waals Ferroelectric α-In2Se3
by Geoffroy Kremer, Aymen Mahmoudi, Adel M’Foukh, Meryem Bouaziz, Mehrdad Rahimi, Maria Luisa Della Rocca, Patrick Le Fèvre, Jean-Francois Dayen, François Bertran, Sylvia Matzen, Marco Pala, Julien Chaste, Fabrice Oehler, and Abdelkarim Ouerghi
ACS Nano
DOI: 10.1021/acsnano.3c04186
16 Aug 12:01
[ASAP] Revealing the Hidden Spin-Polarized Bands in a Superconducting Tl Bilayer Crystal
by Takahiro Kobayashi, Yuichiro Toichi, Koichiro Yaji, Yoshitaka Nakata, Yuchi Yaoita, Mutsuki Iwaoka, Mariko Koga, Yituo Zhang, Jun Fujii, Shimpei Ono, Yasmine Sassa, Yasuo Yoshida, Yukio Hasegawa, Fumio Komori, Shik Shin, Satoru Ichinokura, Ryota Akiyama, Shuji Hasegawa, Tatsuya Shishidou, Michael Weinert, and Kazuyuki Sakamoto
Nano Letters
DOI: 10.1021/acs.nanolett.3c02387
14 Aug 09:12
Ultrafast Hidden Spin Polarization Dynamics of Bright and Dark Excitons in $2\mathrm{H}\text{−}{\mathrm{WSe}}_{2}$
by Mauro Fanciulli, David Bresteau, Jérôme Gaudin, Shuo Dong, Romain Géneaux, Thierry Ruchon, Olivier Tcherbakoff, Ján Minár, Olivier Heckmann, Maria Christine Richter, Karol Hricovini, and Samuel Beaulieu
Author(s): Mauro Fanciulli, David Bresteau, Jérôme Gaudin, Shuo Dong, Romain Géneaux, Thierry Ruchon, Olivier Tcherbakoff, Ján Minár, Olivier Heckmann, Maria Christine Richter, Karol Hricovini, and Samuel Beaulieu
Multifaceted (spin-, time-, and angle-resolved) photoemission spectroscopy in transitional metal dichalcogenides provide optical control of excitons that could aid the study of spintronics in these systems.
[Phys. Rev. Lett. 131, 066402] Published Thu Aug 10, 2023
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14 Aug 09:12
Intrinsic Nonlinear Hall Effect and Gate-Switchable Berry Curvature Sliding in Twisted Bilayer Graphene
by Meizhen Huang, Zefei Wu, Xu Zhang, Xuemeng Feng, Zishu Zhou, Shi Wang, Yong Chen, Chun Cheng, Kai Sun, Zi Yang Meng, and Ning Wang
Author(s): Meizhen Huang, Zefei Wu, Xu Zhang, Xuemeng Feng, Zishu Zhou, Shi Wang, Yong Chen, Chun Cheng, Kai Sun, Zi Yang Meng, and Ning Wang
An out-of-plane displacement field substantially affects the nonlinear Hall effect in high-mobility twisted bilayer graphene devices.
[Phys. Rev. Lett. 131, 066301] Published Fri Aug 11, 2023
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08 Aug 09:38
[ASAP] Ambipolar Superconductivity with Strong Pairing Interaction in Monolayer 1T′-MoTe2
by Fangdong Tang, Peipei Wang, Qixing Wang, Yuan Gan, Jian Lyu, Xinrun Mi, Mingquan He, Liyuan Zhang, and Jurgen H. Smet
Nano Letters
DOI: 10.1021/acs.nanolett.3c02033
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08 Aug 09:29
Flat $\mathrm{Γ}$ Moiré Bands in Twisted Bilayer ${\mathrm{WSe}}_{2}$
by G. Gatti, J. Issing, L. Rademaker, F. Margot, T. A. de Jong, S. J. van der Molen, J. Teyssier, T. K. Kim, M. D. Watson, C. Cacho, P. Dudin, J. Avila, K. Cordero Edwards, P. Paruch, N. Ubrig, I. Gutiérrez-Lezama, A. F. Morpurgo, A. Tamai, and F. Baumberger
Author(s): G. Gatti, J. Issing, L. Rademaker, F. Margot, T. A. de Jong, S. J. van der Molen, J. Teyssier, T. K. Kim, M. D. Watson, C. Cacho, P. Dudin, J. Avila, K. Cordero Edwards, P. Paruch, N. Ubrig, I. Gutiérrez-Lezama, A. F. Morpurgo, A. Tamai, and F. Baumberger
Combined real- and momentum-space mapping of moire superlattices reveals intriguing flat-band physics of certain van der Waals materials.
[Phys. Rev. Lett. 131, 046401] Published Tue Jul 25, 2023
17 Jul 12:48
Tunable Van Hove Singularity without Structural Instability in Kagome Metal ${\mathrm{CsTi}}_{3}{\mathrm{Bi}}_{5}$
by Bo Liu et al.
Author(s): Bo Liu et al.
In kagome metal CsV3Sb5, multiple intertwined orders are accompanied by both electronic and structural instabilities. These exotic orders have attracted much recent attention, but their origins remain elusive. The newly discovered CsTi3Bi5 is a Ti-based kagome metal to parallel CsV3Sb5. Here, we rep…
[Phys. Rev. Lett. 131, 026701] Published Wed Jul 12, 2023
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17 Jul 12:47
Two-Dimensional Terahertz Spectroscopy of Nonlinear Phononics in the Topological Insulator ${\mathrm{MnBi}}_{2}{\mathrm{Te}}_{4}$
by T. G. H. Blank, K. A. Grishunin, K. A. Zvezdin, N. T. Hai, J. C. Wu, S.-H. Su, J.-C. A. Huang, A. K. Zvezdin, and A. V. Kimel
Author(s): T. G. H. Blank, K. A. Grishunin, K. A. Zvezdin, N. T. Hai, J. C. Wu, S.-H. Su, J.-C. A. Huang, A. K. Zvezdin, and A. V. Kimel
The interaction of a single-cycle terahertz electric field with the topological insulator MnBi2Te4 triggers strongly anharmonic lattice dynamics, promoting fully coherent energy transfer between the otherwise noninteracting Raman-active Eg and infrared (IR)-active Eu phononic modes. Two-dimensional …
[Phys. Rev. Lett. 131, 026902] Published Fri Jul 14, 2023
07 Jul 12:52
Tunable Interband Transitions in Twisted $h\text{−}\mathrm{BN}/\text{Graphene}$ Heterostructures
by Bingyao Liu, Yu-Tian Zhang, Ruixi Qiao, Ruochen Shi, Yuehui Li, Quanlin Guo, Jiade Li, Xiaomei Li, Li Wang, Jiajie Qi, Shixuan Du, Xinguo Ren, Kaihui Liu, Peng Gao, and Yu-Yang Zhang
Author(s): Bingyao Liu, Yu-Tian Zhang, Ruixi Qiao, Ruochen Shi, Yuehui Li, Quanlin Guo, Jiade Li, Xiaomei Li, Li Wang, Jiajie Qi, Shixuan Du, Xinguo Ren, Kaihui Liu, Peng Gao, and Yu-Yang Zhang
In twisted h−BN/graphene heterostructures, the complex electronic properties of the fast-traveling electron gas in graphene are usually considered to be fully revealed. However, the randomly twisted heterostructures may also have unexpected transition behaviors, which may influence the device perfor…
[Phys. Rev. Lett. 131, 016201] Published Wed Jul 05, 2023
07 Jul 08:59
Tunable Interband Transitions in Twisted $h\text{−}\mathrm{BN}/\text{Graphene}$ Heterostructures
by Bingyao Liu, Yu-Tian Zhang, Ruixi Qiao, Ruochen Shi, Yuehui Li, Quanlin Guo, Jiade Li, Xiaomei Li, Li Wang, Jiajie Qi, Shixuan Du, Xinguo Ren, Kaihui Liu, Peng Gao, and Yu-Yang Zhang
Author(s): Bingyao Liu, Yu-Tian Zhang, Ruixi Qiao, Ruochen Shi, Yuehui Li, Quanlin Guo, Jiade Li, Xiaomei Li, Li Wang, Jiajie Qi, Shixuan Du, Xinguo Ren, Kaihui Liu, Peng Gao, and Yu-Yang Zhang
In twisted h−BN/graphene heterostructures, the complex electronic properties of the fast-traveling electron gas in graphene are usually considered to be fully revealed. However, the randomly twisted heterostructures may also have unexpected transition behaviors, which may influence the device perfor…
[Phys. Rev. Lett. 131, 016201] Published Wed Jul 05, 2023
03 Jul 12:48
High-κ two-dimensional dielectric
by Taishi Takenobu
Nature Materials, Published online: 29 June 2023; doi:10.1038/s41563-023-01567-4
A two-dimensional atomically flat insulator with large dielectric constant and high breakdown field strength has been successfully grown. This material could serve as the dielectric and encapsulation layers for two-dimensional materials for studying their emergent physics, as well as for next-generation electronics.
03 Jul 10:04
[ASAP] Strain-Correlated Piezoelectricity in Quasi-Two-Dimensional Zinc Oxide Nanosheets
by Corey Carlos, Jun Li, Ziyi Zhang, Kevin Jordan Berg, Yizhan Wang, and Xudong Wang
Nano Letters
DOI: 10.1021/acs.nanolett.3c01728
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23 Jun 14:41
[ASAP] Engineering the Strain and Interlayer Excitons of 2D Materials via Lithographically Engraved Hexagonal Boron Nitride
by Yu-Chiang Hsieh, Zhen-You Lin, Shin-Ji Fung, Wen-Shin Lu, Sheng-Chin Ho, Siang-Ping Hong, Sheng-Zhu Ho, Chiu-Hua Huang, Kenji Watanabe, Takashi Taniguchi, Yang-Hao Chan, Yi-Chun Chen, Chung-Lin Wu, and Tse-Ming Chen
Nano Letters
DOI: 10.1021/acs.nanolett.3c01208
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15 Jun 12:39
Ultrafast Switching from the Charge Density Wave Phase to a Metastable Metallic State in $1T\text{−}{\mathrm{TiSe}}_{2}$
by Shaofeng Duan, Wei Xia, Chaozhi Huang, Shichong Wang, Lingxiao Gu, Haoran Liu, Dao Xiang, Dong Qian, Yanfeng Guo, and Wentao Zhang
Author(s): Shaofeng Duan, Wei Xia, Chaozhi Huang, Shichong Wang, Lingxiao Gu, Haoran Liu, Dao Xiang, Dong Qian, Yanfeng Guo, and Wentao Zhang
The ultrafast electronic structures of the charge density wave material 1T−TiSe2 were investigated by high-resolution time- and angle-resolved photoemission spectroscopy. We found that the quasiparticle populations drove ultrafast electronic phase transitions in 1T−TiSe2 within 100 fs after photoexc…
[Phys. Rev. Lett. 130, 226501] Published Wed May 31, 2023
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15 Jun 12:39
Carrier-Density Control of the Quantum-Confined $1T\text{−}{\mathrm{TiSe}}_{2}$ Charge Density Wave
by T. Jaouen, A. Pulkkinen, M. Rumo, G. Kremer, B. Salzmann, C. W. Nicholson, M.-L. Mottas, E. Giannini, S. Tricot, P. Schieffer, B. Hildebrand, and C. Monney
Author(s): T. Jaouen, A. Pulkkinen, M. Rumo, G. Kremer, B. Salzmann, C. W. Nicholson, M.-L. Mottas, E. Giannini, S. Tricot, P. Schieffer, B. Hildebrand, and C. Monney
Using angle-resolved photoemission spectroscopy, combined with first principle and coupled self-consistent Poisson-Schrödinger calculations, we demonstrate that potassium (K) atoms adsorbed on the low-temperature phase of 1T−TiSe2 induce the creation of a two-dimensional electron gas (2DEG) and quan…
[Phys. Rev. Lett. 130, 226401] Published Wed May 31, 2023
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08 May 07:54
Current- and Field-Induced Topology in Twisted Nodal Superconductors
by Pavel A. Volkov, Justin H. Wilson, Kevin P. Lucht, and J. H. Pixley
Author(s): Pavel A. Volkov, Justin H. Wilson, Kevin P. Lucht, and J. H. Pixley
Topological superconductivity can be realized in twisted bilayers of nodal superconductors by the application of an interlayer current and is achievable with available experimental setups.
[Phys. Rev. Lett. 130, 186001] Published Thu May 04, 2023
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13 Apr 08:05
Exploring the Charge Density Wave Phase of $1T\text{−}{\mathrm{TaSe}}_{2}$: Mott or Charge-Transfer Gap?
by C. J. Sayers, G. Cerullo, Y. Zhang, C. E. Sanders, R. T. Chapman, A. S. Wyatt, G. Chatterjee, E. Springate, D. Wolverson, E. Da Como, and E. Carpene
Author(s): C. J. Sayers, G. Cerullo, Y. Zhang, C. E. Sanders, R. T. Chapman, A. S. Wyatt, G. Chatterjee, E. Springate, D. Wolverson, E. Da Como, and E. Carpene
1T−TaSe2 is widely believed to host a Mott metal-insulator transition in the charge density wave (CDW) phase according to the spectroscopic observation of a band gap that extends across all momentum space. Previous investigations inferred that the occurrence of the Mott phase is limited to the surfa…
[Phys. Rev. Lett. 130, 156401] Published Wed Apr 12, 2023
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11 Apr 10:22
Geometry-Induced Spin Filtering in Photoemission Maps from ${\mathrm{WTe}}_{2}$ Surface States
by Tristan Heider, Gustav Bihlmayer, Jakub Schusser, Friedrich Reinert, Jan Minár, Stefan Blügel, Claus M. Schneider, and Lukasz Plucinski
Author(s): Tristan Heider, Gustav Bihlmayer, Jakub Schusser, Friedrich Reinert, Jan Minár, Stefan Blügel, Claus M. Schneider, and Lukasz Plucinski
A new spin behavior has been found in the light-induced electron emission of tungsten ditelluride.
[Phys. Rev. Lett. 130, 146401] Published Wed Apr 05, 2023
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30 Mar 16:41
[ASAP] Gate and Temperature Driven Phase Transitions in Few-Layer MoTe2
by Hugo Kowalczyk, Johan Biscaras, Nashra Pistawala, Luminita Harnagea, Surjeet Singh, and Abhay Shukla
ACS Nano
DOI: 10.1021/acsnano.2c12610
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07 Mar 11:51
[ASAP] Observation of Gapped Topological Surface States and Isolated Surface Resonances in PdTe2 Ultrathin Films
by Jacob Cook, Sougata Mardanya, Qiangsheng Lu, Clayton Conner, Matthew Snyder, Xiaoqian Zhang, James McMillen, Geoff Watson, Tay-Rong Chang, and Guang Bian
Nano Letters
DOI: 10.1021/acs.nanolett.2c04511
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07 Mar 11:51
[ASAP] Direct Imaging of Band Structure for Powdered Rhombohedral Boron Monosulfide by Microfocused ARPES
by Katsuaki Sugawara, Haruki Kusaka, Tappei Kawakami, Koki Yanagizawa, Asuka Honma, Seigo Souma, Kosuke Nakayama, Masashi Miyakawa, Takashi Taniguchi°, Miho Kitamura△, Koji Horiba, Hiroshi Kumigashira, Takashi Takahashi, Shin-ichi Orimo•, Masayuki Toyoda▽, Susumu Saito▽▼±, Takahiro Kondo, and Takafumi Sato
Nano Letters
DOI: 10.1021/acs.nanolett.2c04048
13 Feb 12:27
Interlayer Electron-Hole Friction in Tunable Twisted Bilayer Graphene Semimetal
by D. A. Bandurin, A. Principi, I. Y. Phinney, T. Taniguchi, K. Watanabe, and P. Jarillo-Herrero
Author(s): D. A. Bandurin, A. Principi, I. Y. Phinney, T. Taniguchi, K. Watanabe, and P. Jarillo-Herrero
In a perpendicular electric field, a small-angle twisted bilayer graphene system is tuned to a Fermi liquid with strong friction between electrons and holes, providing insight into heat and charge transport mechanisms in semimetals.
[Phys. Rev. Lett. 129, 206802] Published Thu Nov 10, 2022
13 Feb 12:26
Assessing Nontrivial Topology in Weyl Semimetals by Dichroic Photoemission
by J. Schusser, H. Bentmann, M. Ünzelmann, T. Figgemeier, C.-H. Min, S. Moser, J. N. Neu, T. Siegrist, and F. Reinert
Author(s): J. Schusser, H. Bentmann, M. Ünzelmann, T. Figgemeier, C.-H. Min, S. Moser, J. N. Neu, T. Siegrist, and F. Reinert
The electronic structure of Weyl semimetals features Berry flux monopoles in the bulk and Fermi arcs at the surface. While angle-resolved photoelectron spectroscopy (ARPES) is successfully used to map the bulk and surface bands, it remains a challenge to explicitly resolve and pinpoint these topolog…
[Phys. Rev. Lett. 129, 246404] Published Fri Dec 09, 2022
21 Oct 11:20
Tailoring Dirac Fermions by In-Situ Tunable High-Order Moiré Pattern in Graphene-Monolayer Xenon Heterostructure
by Chunlong Wu, Qiang Wan, Cao Peng, Shangkun Mo, Renzhe Li, Keming Zhao, Yanping Guo, Shengjun Yuan, Fengcheng Wu, Chendong Zhang, and Nan Xu
Author(s): Chunlong Wu, Qiang Wan, Cao Peng, Shangkun Mo, Renzhe Li, Keming Zhao, Yanping Guo, Shengjun Yuan, Fengcheng Wu, Chendong Zhang, and Nan Xu
We report an experimental study of a high-order moiré pattern formed in graphene-monolayer xenon heterostructure. The moiré period is in situ tuned from few nanometers to +∞, by adjusting the lattice constant of the xenon monolayer through annealing. Using angle-resolved photoemission spectroscopy, …
[Phys. Rev. Lett. 129, 176402] Published Wed Oct 19, 2022
16 Sep 10:28
Ultrafast Suppression of the Ferroelectric Instability in ${\mathrm{KTaO}}_{3}$
by Viktor Krapivin, Mingqiang Gu, D. Hickox-Young, S. W. Teitelbaum, Y. Huang, G. de la Peña, D. Zhu, N. Sirica, M.-C. Lee, R. P. Prasankumar, A. A. Maznev, K. A. Nelson, M. Chollet, James M. Rondinelli, D. A. Reis, and M. Trigo
Author(s): Viktor Krapivin, Mingqiang Gu, D. Hickox-Young, S. W. Teitelbaum, Y. Huang, G. de la Peña, D. Zhu, N. Sirica, M.-C. Lee, R. P. Prasankumar, A. A. Maznev, K. A. Nelson, M. Chollet, James M. Rondinelli, D. A. Reis, and M. Trigo
We use an x-ray free-electron laser to study the lattice dynamics following photoexcitation with ultrafast near-UV light (wavelength 266 nm, 50 fs pulse duration) of the incipient ferroelectric potassium tantalate, KTaO3. By probing the lattice dynamics corresponding to multiple Brillouin zones thro…
[Phys. Rev. Lett. 129, 127601] Published Wed Sep 14, 2022
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14 Sep 11:32
[ASAP] Nanometric Moiré Stripes on the Surface of Bi2Se3 Topological Insulator
by Matteo Salvato, Maurizio De Crescenzi, Mattia Scagliotti, Paola Castrucci, Simona Boninelli, Giuseppe Mario Caruso, Yi Liu, Anders Mikkelsen, Rainer Timm, Suhas Nahas, Annica Black-Schaffer, Gunta Kunakova, Jana Andzane, Donats Erts, Thilo Bauch, and Floriana Lombardi
ACS Nano
DOI: 10.1021/acsnano.2c02515
02 Sep 12:11
Capacitively and Inductively Coupled Excitons in Bilayer ${\mathrm{MoS}}_{2}$
by Lukas Sponfeldner, Nadine Leisgang, Shivangi Shree, Ioannis Paradisanos, Kenji Watanabe, Takashi Taniguchi, Cedric Robert, Delphine Lagarde, Andrea Balocchi, Xavier Marie, Iann C. Gerber, Bernhard Urbaszek, and Richard J. Warburton
Author(s): Lukas Sponfeldner, Nadine Leisgang, Shivangi Shree, Ioannis Paradisanos, Kenji Watanabe, Takashi Taniguchi, Cedric Robert, Delphine Lagarde, Andrea Balocchi, Xavier Marie, Iann C. Gerber, Bernhard Urbaszek, and Richard J. Warburton
The coupling of intralayer A and B excitons and interlayer excitons (IE) is studied in a two-dimensional semiconductor, homobilayer MoS2. It is shown that the measured optical susceptibility reveals both the magnitude and the phase of the coupling constants. The IE and B excitons couple via a 0-phas…
[Phys. Rev. Lett. 129, 107401] Published Thu Sep 01, 2022
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