1
|
|
2
|
Holtgrewe K, Mahatha SK, Sheverdyaeva PM, Moras P, Flammini R, Colonna S, Ronci F, Papagno M, Barla A, Petaccia L, Aliev ZS, Babanly MB, Chulkov EV, Sanna S, Hogan C, Carbone C. Topologization of β-antimonene on Bi 2Se 3 via proximity effects. Sci Rep 2020; 10:14619. [PMID: 32884112 PMCID: PMC7471962 DOI: 10.1038/s41598-020-71624-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/19/2020] [Indexed: 11/09/2022] Open
Abstract
Topological surface states usually emerge at the boundary between a topological and a conventional insulator. Their precise physical character and spatial localization depend on the complex interplay between the chemical, structural and electronic properties of the two insulators in contact. Using a lattice-matched heterointerface of single and double bilayers of β-antimonene and bismuth selenide, we perform a comprehensive experimental and theoretical study of the chiral surface states by means of microscopy and spectroscopic measurements complemented by first-principles calculations. We demonstrate that, although β-antimonene is a trivial insulator in its free-standing form, it inherits the unique symmetry-protected spin texture from the substrate via a proximity effect that induces outward migration of the topological state. This "topologization" of β-antimonene is found to be driven by the hybridization of the bands from either side of the interface.
Collapse
Affiliation(s)
- K Holtgrewe
- Institut für Theoretische Physik and Center for Materials Research (LaMa), Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392, Gießen, Germany
| | - S K Mahatha
- Istituto di Struttura Della Materia, Consiglio Nazionale Delle Ricerche, 34149, Trieste, Italy.
- Ruprecht Haensel Laboratory, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany.
| | - P M Sheverdyaeva
- Istituto di Struttura Della Materia, Consiglio Nazionale Delle Ricerche, 34149, Trieste, Italy
| | - P Moras
- Istituto di Struttura Della Materia, Consiglio Nazionale Delle Ricerche, 34149, Trieste, Italy
| | - R Flammini
- Istituto di Struttura Della Materia, Consiglio Nazionale Delle Ricerche, Via del Fosso del Cavaliere 100, 00133, Roma, Italy
| | - S Colonna
- Istituto di Struttura Della Materia, Consiglio Nazionale Delle Ricerche, Via del Fosso del Cavaliere 100, 00133, Roma, Italy
| | - F Ronci
- Istituto di Struttura Della Materia, Consiglio Nazionale Delle Ricerche, Via del Fosso del Cavaliere 100, 00133, Roma, Italy
| | - M Papagno
- Dipartimento di Fisica, CS, Università Della Calabria, Via P. Bucci, 87036, Arcavacata di Rende, Italy
| | - A Barla
- Istituto di Struttura Della Materia, Consiglio Nazionale Delle Ricerche, 34149, Trieste, Italy
| | - L Petaccia
- Elettra Sincrotrone Trieste, Strada Statale 14 km 163.5, 34149, Trieste, Italy
| | - Z S Aliev
- Azerbaijan State Oil and Industry University, AZ1010, Baku, Azerbaijan
| | - M B Babanly
- Institute Catalysis and Inorganic Chemistry, Azerbaijan National Academy of Science, AZ1143, Baku, Azerbaijan
| | - E V Chulkov
- Departamento de Fisica de Materiales, UPV/EHU, 20080, Donostia-San Sebastian, Basque Country, Spain
- Donostia International Physics Center (DIPC), P. de Manuel Lardizabal 4, 20018, San Sebastián, Basque Country, Spain
- Saint Petersburg State University, 198504, Saint Petersburg, Russia
- Institute of Strength Physics and Materials Science, Russian Academy of Sciences, 634021, Tomsk, Russia
| | - S Sanna
- Institut für Theoretische Physik and Center for Materials Research (LaMa), Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392, Gießen, Germany
| | - C Hogan
- Istituto di Struttura Della Materia, Consiglio Nazionale Delle Ricerche, Via del Fosso del Cavaliere 100, 00133, Roma, Italy
| | - C Carbone
- Istituto di Struttura Della Materia, Consiglio Nazionale Delle Ricerche, 34149, Trieste, Italy
| |
Collapse
|
3
|
Shikin AM, Estyunin DA, Klimovskikh II, Filnov SO, Schwier EF, Kumar S, Miyamoto K, Okuda T, Kimura A, Kuroda K, Yaji K, Shin S, Takeda Y, Saitoh Y, Aliev ZS, Mamedov NT, Amiraslanov IR, Babanly MB, Otrokov MM, Eremeev SV, Chulkov EV. Nature of the Dirac gap modulation and surface magnetic interaction in axion antiferromagnetic topological insulator [Formula: see text]. Sci Rep 2020; 10:13226. [PMID: 32764583 PMCID: PMC7413556 DOI: 10.1038/s41598-020-70089-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 07/22/2020] [Indexed: 11/09/2022] Open
Abstract
Modification of the gap at the Dirac point (DP) in axion antiferromagnetic topological insulator [Formula: see text] and its electronic and spin structure have been studied by angle- and spin-resolved photoemission spectroscopy (ARPES) under laser excitation at various temperatures (9-35 K), light polarizations and photon energies. We have distinguished both large (60-70 meV) and reduced ([Formula: see text]) gaps at the DP in the ARPES dispersions, which remain open above the Neél temperature ([Formula: see text]). We propose that the gap above [Formula: see text] remains open due to a short-range magnetic field generated by chiral spin fluctuations. Spin-resolved ARPES, XMCD and circular dichroism ARPES measurements show a surface ferromagnetic ordering for the "large gap" sample and apparently significantly reduced effective magnetic moment for the "reduced gap" sample. These observations can be explained by a shift of the Dirac cone (DC) state localization towards the second Mn layer due to structural disturbance and surface relaxation effects, where DC state is influenced by compensated opposite magnetic moments. As we have shown by means of ab-initio calculations surface structural modification can result in a significant modulation of the DP gap.
Collapse
Affiliation(s)
- A. M. Shikin
- Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | - D. A. Estyunin
- Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | | | - S. O. Filnov
- Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | - E. F. Schwier
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Hiroshima, Japan
| | - S. Kumar
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Hiroshima, Japan
| | - K. Miyamoto
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Hiroshima, Japan
| | - T. Okuda
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Hiroshima, Japan
| | - A. Kimura
- Department of Physical Sciences, Graduate School of Science, Hiroshima University, Hiroshima, Japan
| | - K. Kuroda
- ISSP, University of Tokyo, Kashiwa, Chiba 277-8581 Japan
| | - K. Yaji
- ISSP, University of Tokyo, Kashiwa, Chiba 277-8581 Japan
| | - S. Shin
- ISSP, University of Tokyo, Kashiwa, Chiba 277-8581 Japan
| | - Y. Takeda
- Materials Sciences Research Center, Japan Atomic Energy Agency, Sayo, Hyogo 679-5148 Japan
| | - Y. Saitoh
- Materials Sciences Research Center, Japan Atomic Energy Agency, Sayo, Hyogo 679-5148 Japan
| | - Z. S. Aliev
- Azerbaijan State Oil and Industry University, AZ1010 Baku, Azerbaijan
- Institute of Physics, ANAS, AZ1143 Baku, Azerbaijan
| | | | - I. R. Amiraslanov
- Institute of Physics, ANAS, AZ1143 Baku, Azerbaijan
- Baku State University, AZ1148 Baku, Azerbaijan
| | - M. B. Babanly
- Baku State University, AZ1148 Baku, Azerbaijan
- Institute of Catalysis and Inorganic Chemistry, ANAS, AZ1143 Baku, Azerbaijan
| | - M. M. Otrokov
- Centro de Física de Materiales (CFM-MPC), Centro Mixto CSIC-UPV/EHU, 20018 Donostia-San Sebastián, Basque Country Spain
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Basque Country Spain
| | - S. V. Eremeev
- Saint Petersburg State University, 198504 Saint Petersburg, Russia
- Institute of Strength Physics and Materials Science, 634055 Tomsk, Russia
- Tomsk State University, 634050 Tomsk, Russia
| | - E. V. Chulkov
- Saint Petersburg State University, 198504 Saint Petersburg, Russia
- Tomsk State University, 634050 Tomsk, Russia
- Donostia International Physics Center (DIPC), 20018 Donostia-San Sebastián, Basque Country Spain
- Departamento de Física de Materiales, Facultad de Ciencias Químicas, UPV/EHU, Apdo. 1072, 20080 San Sebastián, Spain
| |
Collapse
|
4
|
Flammini R, Colonna S, Hogan C, Mahatha SK, Papagno M, Barla A, Sheverdyaeva PM, Moras P, Aliev ZS, Babanly MB, Chulkov EV, Carbone C, Ronci F. Evidence of β-antimonene at the Sb/Bi 2Se 3 interface. Nanotechnology 2018; 29:065704. [PMID: 29320369 DOI: 10.1088/1361-6528/aaa2c4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report a study of the interface between antimony and the prototypical topological insulator Bi2Se3. Scanning tunnelling microscopy measurements show the presence of ordered domains displaying a perfect lattice match with bismuth selenide. Density functional theory calculations of the most stable atomic configurations demonstrate that the ordered domains can be attributed to stacks of β-antimonene.
Collapse
Affiliation(s)
- R Flammini
- Istituto di Struttura della Materia-CNR (ISM-CNR), Via del Fosso del Cavaliere 100, I-00133 Roma, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Babanly MB, Chulkov EV, Aliev ZS, Shevelkov AV, Amiraslanov IR. Phase diagrams in materials science of topological insulators based on metal chalcogenides. RUSS J INORG CHEM+ 2017. [DOI: 10.1134/s0036023617130034] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
6
|
Politano A, Silkin VM, Nechaev IA, Vitiello MS, Viti L, Aliev ZS, Babanly MB, Chiarello G, Echenique PM, Chulkov EV. Interplay of Surface and Dirac Plasmons in Topological Insulators: The Case of Bi_{2}Se_{3}. Phys Rev Lett 2015; 115:216802. [PMID: 26636863 DOI: 10.1103/physrevlett.115.216802] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Indexed: 06/05/2023]
Abstract
We have investigated plasmonic excitations at the surface of Bi_{2}Se_{3}(0001) via high-resolution electron energy loss spectroscopy. For low parallel momentum transfer q_{∥}, the loss spectrum shows a distinctive feature peaked at 104 meV. This mode varies weakly with q_{∥}. The behavior of its intensity as a function of primary energy and scattering angle indicates that it is a surface plasmon. At larger momenta (q_{∥}~0.04 Å^{-1}), an additional peak, attributed to the Dirac plasmon, becomes clearly defined in the loss spectrum. Momentum-resolved loss spectra provide evidence of the mutual interaction between the surface plasmon and the Dirac plasmon of Bi_{2}Se_{3}. The proposed theoretical model accounting for the coexistence of three-dimensional doping electrons and two-dimensional Dirac fermions accurately represents the experimental observations. The results reveal novel routes for engineering plasmonic devices based on topological insulators.
Collapse
Affiliation(s)
- A Politano
- Department of Physics, University of Calabria, 87036 Rende (CS), Italy
| | - V M Silkin
- Donostia International Physics Center (DIPC), Paseo de Manuel Lardizabal 4, 20018 San Sebastián/Donostia, Spain
- Departamento de Física de Materiales, Universidad del País Vasco, Apartado 1072, 20080 San Sebastián/Donostia, Spain
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain
| | - I A Nechaev
- Donostia International Physics Center (DIPC), Paseo de Manuel Lardizabal 4, 20018 San Sebastián/Donostia, Spain
- Tomsk State University, 634050 Tomsk, Russian Federation
- Saint Petersburg State University, 198504 Saint Petersburg, Russian Federation
| | - M S Vitiello
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro 12, 56127 Pisa, Italy
| | - L Viti
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro 12, 56127 Pisa, Italy
| | - Z S Aliev
- Donostia International Physics Center (DIPC), Paseo de Manuel Lardizabal 4, 20018 San Sebastián/Donostia, Spain
- Institute of Catalysis and Inorganic Chemistry, ANAS, AZ1143 Baku, Azerbaijian
- Institute of Physics, ANAS, AZ1143 Baku, Azerbaijian
| | - M B Babanly
- Institute of Catalysis and Inorganic Chemistry, ANAS, AZ1143 Baku, Azerbaijian
| | - G Chiarello
- Department of Physics, University of Calabria, 87036 Rende (CS), Italy
- CNISM, Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia, Via della Vasca Navale, 84, 00146 Roma, Italy
| | - P M Echenique
- Donostia International Physics Center (DIPC), Paseo de Manuel Lardizabal 4, 20018 San Sebastián/Donostia, Spain
- Departamento de Física de Materiales, Universidad del País Vasco, Apartado 1072, 20080 San Sebastián/Donostia, Spain
- Centro de Física de Materiales CFM-Materials Physics Center MPC, Centro Mixto CSIC-UPV/EHU, Paseo de Manuel Lardizabal 5, 20018 San Sebastián/Donostia, Spain
| | - E V Chulkov
- Donostia International Physics Center (DIPC), Paseo de Manuel Lardizabal 4, 20018 San Sebastián/Donostia, Spain
- Departamento de Física de Materiales, Universidad del País Vasco, Apartado 1072, 20080 San Sebastián/Donostia, Spain
- Tomsk State University, 634050 Tomsk, Russian Federation
- Saint Petersburg State University, 198504 Saint Petersburg, Russian Federation
- Centro de Física de Materiales CFM-Materials Physics Center MPC, Centro Mixto CSIC-UPV/EHU, Paseo de Manuel Lardizabal 5, 20018 San Sebastián/Donostia, Spain
| |
Collapse
|
7
|
Roy S, Meyerheim HL, Ernst A, Mohseni K, Tusche C, Vergniory MG, Menshchikova TV, Otrokov MM, Ryabishchenkova AG, Aliev ZS, Babanly MB, Kokh KA, Tereshchenko OE, Chulkov EV, Schneider J, Kirschner J. Tuning the Dirac point position in Bi(2)Se(3)(0001) via surface carbon doping. Phys Rev Lett 2014; 113:116802. [PMID: 25259997 DOI: 10.1103/physrevlett.113.116802] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Indexed: 06/03/2023]
Abstract
Angular resolved photoemission spectroscopy in combination with ab initio calculations show that trace amounts of carbon doping of the Bi_{2}Se_{3} surface allows the controlled shift of the Dirac point within the bulk band gap. In contrast to expectation, no Rashba-split two-dimensional electron gas states appear. This unique electronic modification is related to surface structural modification characterized by an expansion of the top Se-Bi spacing of ≈11% as evidenced by surface x-ray diffraction. Our results provide new ways to tune the surface band structure of topological insulators.
Collapse
Affiliation(s)
- Sumalay Roy
- Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany
| | - H L Meyerheim
- Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany
| | - A Ernst
- Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany and Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstraße 2, 04103 Leipzig, Germany
| | - K Mohseni
- Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany
| | - C Tusche
- Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany
| | - M G Vergniory
- Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany and Donostia International Physics Center (DIPC), 20018 San Sebastián/Donostia, Spain
| | - T V Menshchikova
- Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany and Tomsk State University, 634050 Tomsk, Russia
| | - M M Otrokov
- Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany and Donostia International Physics Center (DIPC), 20018 San Sebastián/Donostia, Spain and Tomsk State University, 634050 Tomsk, Russia
| | | | - Z S Aliev
- Baku State University, General and Inorganic Chemistry Department, AZ1148 Baku, Azerbaijan
| | - M B Babanly
- Baku State University, General and Inorganic Chemistry Department, AZ1148 Baku, Azerbaijan
| | - K A Kokh
- Institute of Geology and Mineralogy SB RAS, 630090 Novosibirsk, Russia
| | - O E Tereshchenko
- Institute of Semiconductor Physics SB RAS, and Novosibirsk State University, 630090 Novosibirsk, Russia
| | - E V Chulkov
- Donostia International Physics Center (DIPC), 20018 San Sebastián/Donostia, Spain and Departamento de Física de Materiales UPV/EHU, Centro de Física de Materiales CFM-MPC and Centro Mixto CSIC-UPV/EHU, 20080 San Sebastián/Donostia, Spain
| | - J Schneider
- Department für Geowissenschaften Ludwig-Maximilians Universität München, D-80333 München, Germany
| | - J Kirschner
- Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany and Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, D-06099 Halle, Germany
| |
Collapse
|
8
|
|
9
|
|
10
|
Babanly DM, Askerova SV, Aliev ZS, Babanly MB. Phase equilibria and some properties of solid solutions in the Tl5Te3-Tl9BiTe6-Tl5Te2Cl system. RUSS J INORG CHEM+ 2011. [DOI: 10.1134/s0036023611110040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
11
|
Babanly DM, Aliev ZS, Dhafarli FY, Babanly MB. Phase equilibria in the Tl-TlCl-Te system and thermodynamic properties of the compound Tl5Te2Cl. RUSS J INORG CHEM+ 2011. [DOI: 10.1134/s0036023611030065] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
12
|
Babanly NB, Yusibov YA, Aliev ZS, Babanly MB. Phase equilibria in the Cu-Bi-Se system and thermodynamic properties of copper selenobismuthates. RUSS J INORG CHEM+ 2010. [DOI: 10.1134/s0036023610090238] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
13
|
Babanly NB, Aliev ZS, Yusibov YA, Babanly MB. A thermodynamic study of Cu—Tl—S system by EMF method with Cu4RbCl3I2 solid electrolyte. RUSS J ELECTROCHEM+ 2010. [DOI: 10.1134/s1023193510030146] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|