X-ray study of the charge-density-wave transition in single-layer TiSe2

Fang, Xin-Yue; Hong, Hawoong; Chen, Peng; Chiang, T. -C.

doi:10.1103/PhysRevB.95.201409

Title: X-ray study of the charge-density-wave transition in single-layer $TiS e_{2}$

Journal Article · Mon May 01 00:00:00 EDT 2017 · Physical Review B

DOI:https://doi.org/10.1103/PhysRevB.95.201409· OSTI ID:1377888

Fang, Xin-Yue; Hong, Hawoong; Chen, Peng; Chiang, T. -C.

Synchrotron x-ray studies of single-layer TiSe2 reveal displacements of the Ti and Se atoms as a function of temperature. The measurements, with a high sensitivity of 0.001 Å, show a (2x2) charge density wave (CDW) structure at temperatures below a critical temperature of TC1 = 233 K. The temperature dependence follows a BCS-like second-order mean-field behavior. A fivelayer TiSe2 film also exhibits a CDW transition of the same character but at a lower transition temperature of TC5 = 204 K, which is the same as that for bulk TiSe2. The results demonstrate that lattice distortion is an integral part of the CDW transition that must also involve renormalization of the electronic structure.

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Research Organization:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science - Office of Basic Energy Sciences - Materials Sciences and Engineering Division

DOE Contract Number:: AC02-06CH11357

OSTI ID:: 1377888

Journal Information:: Physical Review B, Vol. 95, Issue 20; ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

References (22)

Charge-Density Waves in Metallic, Layered, Transition-Metal Dichalcogenides Wilson, J. A.; Di Salvo, F. J.; Mahajan, S. Physical Review Letters, Vol. 32, Issue 16 https://doi.org/10.1103/PhysRevLett.32.882	journal	April 1974
Electronic and vibrational properties of ${TiSe}_{2}$ in the charge-density-wave phase from first principles Bianco, Raffaello; Calandra, Matteo; Mauri, Francesco Physical Review B, Vol. 92, Issue 9 https://doi.org/10.1103/PhysRevB.92.094107	journal	September 2015
Electronic properties and superlattice formation in the semimetal ${TiSe}_{2}$ Di Salvo, F. J.; Moncton, D. E.; Waszczak, J. V. Physical Review B, Vol. 14, Issue 10 https://doi.org/10.1103/PhysRevB.14.4321	journal	November 1976
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
Chiral Charge-Density Waves Ishioka, J.; Liu, Y. H.; Shimatake, K. Physical Review Letters, Vol. 105, Issue 17 https://doi.org/10.1103/PhysRevLett.105.176401	journal	October 2010
Excitonic Insulator Jérome, D.; Rice, T. M.; Kohn, W. Physical Review, Vol. 158, Issue 2 https://doi.org/10.1103/PhysRev.158.462	journal	June 1967
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
Excitonic Phases Kohn, W. Physical Review Letters, Vol. 19, Issue 8 https://doi.org/10.1103/PhysRevLett.19.439	journal	August 1967
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
Molecular beam epitaxy growth and scanning tunneling microscopy study of ${TiSe}_{2}$ ultrathin films Peng, Jun-Ping; Guan, Jia-Qi; Zhang, Hui-Min Physical Review B, Vol. 91, Issue 12 https://doi.org/10.1103/PhysRevB.91.121113	journal	March 2015
Lattice dynamics of Ti ${Se}_{2}$ Jaswal, S. S. Physical Review B, Vol. 20, Issue 12 https://doi.org/10.1103/PhysRevB.20.5297	journal	December 1979
Photoemission of bands above the Fermi level: The excitonic insulator phase transition in $1 T - {TiSe}_{2}$ Pillo, Th.; Hayoz, J.; Berger, H. Physical Review B, Vol. 61, Issue 23 https://doi.org/10.1103/PhysRevB.61.16213	journal	June 2000
X-Ray Studies of Phonon Softening in ${TiSe}_{2}$ Holt, M.; Zschack, P.; Hong, Hawoong Physical Review Letters, Vol. 86, Issue 17 https://doi.org/10.1103/PhysRevLett.86.3799	journal	April 2001
Electron-Hole Coupling and the Charge Density Wave Transition in ${TiSe}_{2}$ Kidd, T. E.; Miller, T.; Chou, M. Y. Physical Review Letters, Vol. 88, Issue 22 https://doi.org/10.1103/PhysRevLett.88.226402	journal	May 2002
A six-circle diffractometer system for synchrotron X-ray studies of surfaces and thin film growth by molecular beam epitaxy Hong, Hawoong; Chiang, T. -C. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 572, Issue 2 https://doi.org/10.1016/j.nima.2006.11.056	journal	March 2007
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
Hidden Order and Dimensional Crossover of the Charge Density Waves in TiSe2 Chen, P.; Chan, Y. -H.; Fang, X. -Y. Scientific Reports, Vol. 6, Issue 1 https://doi.org/10.1038/srep37910	journal	November 2016
On the origin of charge-density waves in select layered transition-metal dichalcogenides Rossnagel, K. Journal of Physics: Condensed Matter, Vol. 23, Issue 21 https://doi.org/10.1088/0953-8984/23/21/213001	journal	May 2011
Large-scale uniform bilayer graphene prepared by vacuum graphitization of 6H-SiC(0001) substrates Wang, Qingyan; Zhang, Wenhao; Wang, Lili Journal of Physics: Condensed Matter, Vol. 25, Issue 9 https://doi.org/10.1088/0953-8984/25/9/095002	journal	January 2013
Evidence for an Excitonic Insulator Phase in $1 T − {TiSe}_{2}$ Cercellier, H.; Monney, C.; Clerc, F. Physical Review Letters, Vol. 99, Issue 14 https://doi.org/10.1103/PhysRevLett.99.146403	journal	October 2007
Charge Density Waves in Exfoliated Films of van der Waals Materials: Evolution of Raman Spectrum in TiSe ₂ Goli, Pradyumna; Khan, Javed; Wickramaratne, Darshana Nano Letters, Vol. 12, Issue 11 https://doi.org/10.1021/nl303365x	journal	October 2012
Charge-density-wave phase transition in $1 T - {TiSe}_{2} :$ Excitonic insulator versus band-type Jahn-Teller mechanism Rossnagel, K.; Kipp, L.; Skibowski, M. Physical Review B, Vol. 65, Issue 23 https://doi.org/10.1103/PhysRevB.65.235101	journal	May 2002