Controlling the Charge Density Wave Transition in Monolayer TiSe 2 : Substrate and Doping Effects

Kolekar, Sadhu; Bonilla, Manuel; Diaz, Horacio Coy; Hashimoto, Makato; Lu, Donghui; Batzill, Matthias

doi:10.1002/qute.201800070

Controlling the Charge Density Wave Transition in Monolayer TiSe ₂ : Substrate and Doping Effects

Journal Article · Thu Oct 11 00:00:00 EDT 2018 · Advanced Quantum Technologies

DOI:https://doi.org/10.1002/qute.201800070· OSTI ID:1479529

Kolekar, Sadhu ^[1]; Bonilla, Manuel ^[1]; Diaz, Horacio Coy ^[1]; Hashimoto, Makato ^[2]; Lu, Donghui ^[2]; ^[1]

Department of Physics University of South Florida Tampa FL 33620 USA
Stanford Synchrotron Radiation Lightsource SLAC National Accelerator Laboratory Menlo Park CA 94025 USA

Abstract

TiSe ₂ is an exciting material because it can be tuned between superconducting and charge density wave (CDW) transitions. In the monolayer limit, TiSe ₂ exhibits a sizable energy gap in the CDW phase that makes it a promising quantum material. It is shown that interfacing a single layer of TiSe ₂ with dissimilar van der Waals materials enables control of its properties. Using angle‐resolved photoemission spectroscopy, the energy gap opening is analyzed as a function of temperature for TiSe ₂ monolayers supported on different van der Waals substrates. A substantial increase in the CDW transition temperature of ≈45 K is observed on MoS ₂ compared to graphite (highly oriented pyrolytic graphite) substrates. This control of the CDW in monolayer TiSe ₂ is suggested to arise from varying charge screening of the unconventional CDW of TiSe ₂ by the substrate. In addition, the suppression of CDW order and a complete closing of the energy gap by electron doping of monolayer TiSe ₂ is demonstrated. Regulating the many‐body physics phenomena in monolayer TiSe ₂ lays the foundation of modifying TiSe ₂ in, for example, artificial van der Waals heterostructures and thus creates a new approach for utilizing the quantum states of TiSe ₂ in device applications.

View Accepted Manuscript (Publisher)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1479529

Journal Information:: Advanced Quantum Technologies, Journal Name: Advanced Quantum Technologies Journal Issue: 3 Vol. 1; ISSN 2511-9044

Publisher:: Wiley Blackwell (John Wiley & Sons)Copyright Statement

Country of Publication:: Germany

Language:: English

References (30)

Splitting of the Ti-3d bands of TiSe2 in the charge-density wave phase Ghafari, A.; Petaccia, L.; Janowitz, C. Applied Surface Science, Vol. 396 https://doi.org/10.1016/j.apsusc.2016.12.016	journal	February 2017
Unveiling the charge density wave inhomogeneity and pseudogap state in 1 T -TiSe 2 Zhang, Kai-Wen; Yang, Chao-Long; Lei, Bin Science Bulletin, Vol. 63, Issue 7 https://doi.org/10.1016/j.scib.2018.02.018	journal	April 2018
Dimensional Effects on the Charge Density Waves in Ultrathin Films of TiSe ₂ Chen, P.; Chan, Y. -H.; Wong, M. -H. Nano Letters, Vol. 16, Issue 10 https://doi.org/10.1021/acs.nanolett.6b02710	journal	September 2016
Probing the Influence of Dielectric Environment on Excitons in Monolayer WSe ₂ : Insight from High Magnetic Fields Stier, Andreas V.; Wilson, Nathan P.; Clark, Genevieve Nano Letters, Vol. 16, Issue 11 https://doi.org/10.1021/acs.nanolett.6b03276	journal	October 2016
Persistent Charge-Density-Wave Order in Single-Layer TaSe ₂ Ryu, Hyejin; Chen, Yi; Kim, Heejung Nano Letters, Vol. 18, Issue 2 https://doi.org/10.1021/acs.nanolett.7b03264	journal	January 2018
Electronic Structure and Enhanced Charge-Density Wave Order of Monolayer VSe ₂ Feng, Jiagui; Biswas, Deepnarayan; Rajan, Akhil Nano Letters, Vol. 18, Issue 7 https://doi.org/10.1021/acs.nanolett.8b01649	journal	June 2018
Unconventional Charge-Density-Wave Transition in Monolayer 1 T -TiSe ₂ Sugawara, Katsuaki; Nakata, Yuki; Shimizu, Ryota ACS Nano, Vol. 10, Issue 1 https://doi.org/10.1021/acsnano.5b06727	journal	December 2015
Direct Observation of Interlayer Hybridization and Dirac Relativistic Carriers in Graphene/MoS ₂ van der Waals Heterostructures Coy Diaz, Horacio; Avila, José; Chen, Chaoyu Nano Letters, Vol. 15, Issue 2 https://doi.org/10.1021/nl504167y	journal	January 2015
Collapse of long-range charge order tracked by time-resolved photoemission at high momenta Rohwer, Timm; Hellmann, Stefan; Wiesenmayer, Martin Nature, Vol. 471, Issue 7339 https://doi.org/10.1038/nature09829	journal	March 2011
Controlling many-body states by the electric-field effect in a two-dimensional material Li, L. J.; O’Farrell, E. C. T.; Loh, K. P. Nature, Vol. 529, Issue 7585 https://doi.org/10.1038/nature16175	journal	December 2015
Charge density wave transition in single-layer titanium diselenide Chen, P.; Chan, Y. -H.; Fang, X. -Y. Nature Communications, Vol. 6, Issue 1 https://doi.org/10.1038/ncomms9943	journal	November 2015
Giant bandgap renormalization and excitonic effects in a monolayer transition metal dichalcogenide semiconductor Ugeda, Miguel M.; Bradley, Aaron J.; Shi, Su-Fei Nature Materials, Vol. 13, Issue 12 https://doi.org/10.1038/nmat4061	journal	August 2014
Strongly enhanced charge-density-wave order in monolayer NbSe₂ Xi, Xiaoxiang; Zhao, Liang; Wang, Zefang Nature Nanotechnology, Vol. 10, Issue 9, p. 765-769 https://doi.org/10.1038/nnano.2015.143	journal	July 2015
Emergence of charge density wave domain walls above the superconducting dome in 1T-TiSe2 Joe, Y. I.; Chen, X. M.; Ghaemi, P. Nature Physics, Vol. 10, Issue 6 https://doi.org/10.1038/nphys2935	journal	April 2014
Superconductivity in CuxTiSe2 Morosan, E.; Zandbergen, H. W.; Dennis, B. S. Nature Physics, Vol. 2, Issue 8 https://doi.org/10.1038/nphys360	journal	July 2006
Strong room-temperature ferromagnetism in VSe2 monolayers on van der Waals substrates Bonilla, Manuel; Kolekar, Sadhu; Ma, Yujing Nature Nanotechnology, Vol. 13, Issue 4 https://doi.org/10.1038/s41565-018-0063-9	journal	February 2018
Charge doping of graphene in metal/graphene/dielectric sandwich structures evaluated by C-1s core level photoemission spectroscopy Dahal, Arjun; Addou, Rafik; Coy-Diaz, Horacio APL Materials, Vol. 1, Issue 4 https://doi.org/10.1063/1.4824038	journal	October 2013
Dimensional crossover of the charge density wave transition in thin exfoliated VSe ₂ Pásztor, Árpád; Scarfato, Alessandro; Barreteau, Céline 2D Materials, Vol. 4, Issue 4 https://doi.org/10.1088/2053-1583/aa86de	journal	September 2017
Layer- and substrate-dependent charge density wave criticality in 1T–TiSe ₂ Kolekar, Sadhu; Bonilla, Manuel; Ma, Yujing 2D Materials, Vol. 5, Issue 1 https://doi.org/10.1088/2053-1583/aa8e6f	journal	October 2017
Band structure and lattice instability of Ti Se 2 Zunger, Alex; Freeman, A. J. Physical Review B, Vol. 17, Issue 4 https://doi.org/10.1103/PhysRevB.17.1839	journal	February 1978
Spontaneous exciton condensation in 1 T -TiSe 2 : BCS-like approach Monney, C.; Cercellier, H.; Clerc, F. Physical Review B, Vol. 79, Issue 4 https://doi.org/10.1103/PhysRevB.79.045116	journal	January 2009
Multiple electronic transitions and superconductivity in Pd x TiSe 2 Morosan, E.; Wagner, K. E.; Zhao, Liang L. Physical Review B, Vol. 81, Issue 9 https://doi.org/10.1103/PhysRevB.81.094524	journal	March 2010
Superconductivity at 2.3 K in the misfit compound ( PbSe ) 1.16 ( TiSe 2 ) 2 Giang, N.; Xu, Q.; Hor, Y. S. Physical Review B, Vol. 82, Issue 2 https://doi.org/10.1103/PhysRevB.82.024503	journal	July 2010
Band-gap expansion in the surface-localized electronic structure of MoS 2 (0002) Han, Sang Wook; Cha, Gi-Beom; Frantzeskakis, Emmanouil Physical Review B, Vol. 86, Issue 11 https://doi.org/10.1103/PhysRevB.86.115105	journal	September 2012
Nonthermal Melting of a Charge Density Wave in TiSe 2 Möhr-Vorobeva, E.; Johnson, S. L.; Beaud, P. Physical Review Letters, Vol. 107, Issue 3 https://doi.org/10.1103/PhysRevLett.107.036403	journal	July 2011
Charge-Density-Wave Phase of 1 T − TiSe 2 : The Influence of Conduction Band Population May, Matthias M.; Brabetz, Christine; Janowitz, Christoph Physical Review Letters, Vol. 107, Issue 17 https://doi.org/10.1103/PhysRevLett.107.176405	journal	October 2011
Charge Transfer Effects in Naturally Occurring van der Waals Heterostructures ( PbSe ) 1.16 ( TiSe 2 ) m ( m = 1 , 2) Yao, Q.; Shen, D. W.; Wen, C. H. P. Physical Review Letters, Vol. 120, Issue 10 https://doi.org/10.1103/PhysRevLett.120.106401	journal	March 2018
Evolution of the Electronic Structure of 1 T − Cu x TiSe 2 Zhao, J. F.; Ou, H. W.; Wu, G. Physical Review Letters, Vol. 99, Issue 14 https://doi.org/10.1103/PhysRevLett.99.146401	journal	October 2007
Microscopic Theory of the CDW State of 1 T -TiSe ₂ Suzuki, Naoshi; Yamamoto, Atsushi; Motizuki, Kazuko Journal of the Physical Society of Japan, Vol. 54, Issue 12 https://doi.org/10.1143/JPSJ.54.4668	journal	December 1985
An alternative interpretation of recent ARPES measurements on TiSe ₂ van Wezel, J.; Nahai-Williamson, P.; Saxena, S. S. EPL (Europhysics Letters), Vol. 89, Issue 4 https://doi.org/10.1209/0295-5075/89/47004	journal	February 2010

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