Universal absorption of two-dimensional materials within

The universal optical absorption is a fascinating property existing in certain two-dimensional (2D) materials. By introducing a general two-band k ⋅ p effective Hamiltonian, we demonstrate that the absorptance can manifest an univers...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Huang, Rong [verfasserIn] Li, Jun [verfasserIn] Wu, Zhenhua [verfasserIn] Yang, Wen [verfasserIn] Huang, Wei [verfasserIn] Li, Cheng [verfasserIn] Chen, Songyan [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2018

Schlagwörter:	Two-dimensional materials Optical absorption Van Hove singularity Effective Hamiltonian

Übergeordnetes Werk:	Enthalten in: Physics letters / A - Amsterdam : North-Holland Publ., 1967, 382, Seite 3035-3041
Übergeordnetes Werk:	volume:382 ; pages:3035-3041

DOI / URN:	10.1016/j.physleta.2018.07.025

Katalog-ID:	ELV000390925

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520			\|a The universal optical absorption is a fascinating property existing in certain two-dimensional (2D) materials. By introducing a general two-band k ⋅ p effective Hamiltonian, we demonstrate that the absorptance can manifest an universal value at the direct band-edge of 2D materials in three specific cases. However, for general 2D materials, the absorptance becomes nonuniversal. We investigate the dependency of absorptance on the band parameters of general 2D materials. The influences of band-anisotropy and band warping are also considered. Interestingly, we find that the coherent interband coupling and the band warping are responsible for the occurrence of the saddle-point type of Van Hove singularity, which leads to strong light-matter interactions in 2D materials.
650		4	\|a Two-dimensional materials
650		4	\|a Optical absorption
650		4	\|a Van Hove singularity
650		4	\|a Effective Hamiltonian
700	1		\|a Li, Jun \|e verfasserin \|4 aut
700	1		\|a Wu, Zhenhua \|e verfasserin \|0 (orcid)0000-0003-4552-883X \|4 aut
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700	1		\|a Li, Cheng \|e verfasserin \|4 aut
700	1		\|a Chen, Songyan \|e verfasserin \|4 aut
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allfields	10.1016/j.physleta.2018.07.025 doi (DE-627)ELV000390925 (ELSEVIER)S0375-9601(18)30769-2 DE-627 ger DE-627 rda eng 530 DE-600 33.00 bkl Huang, Rong verfasserin aut Universal absorption of two-dimensional materials within 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The universal optical absorption is a fascinating property existing in certain two-dimensional (2D) materials. By introducing a general two-band k ⋅ p effective Hamiltonian, we demonstrate that the absorptance can manifest an universal value at the direct band-edge of 2D materials in three specific cases. However, for general 2D materials, the absorptance becomes nonuniversal. We investigate the dependency of absorptance on the band parameters of general 2D materials. The influences of band-anisotropy and band warping are also considered. Interestingly, we find that the coherent interband coupling and the band warping are responsible for the occurrence of the saddle-point type of Van Hove singularity, which leads to strong light-matter interactions in 2D materials. Two-dimensional materials Optical absorption Van Hove singularity Effective Hamiltonian Li, Jun verfasserin aut Wu, Zhenhua verfasserin (orcid)0000-0003-4552-883X aut Yang, Wen verfasserin aut Huang, Wei verfasserin aut Li, Cheng verfasserin aut Chen, Songyan verfasserin aut Enthalten in Physics letters / A Amsterdam : North-Holland Publ., 1967 382, Seite 3035-3041 Online-Ressource (DE-627)266015298 (DE-600)1466603-0 (DE-576)074959905 1873-2429 nnns volume:382 pages:3035-3041 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.00 Physik: Allgemeines AR 382 3035-3041
spelling	10.1016/j.physleta.2018.07.025 doi (DE-627)ELV000390925 (ELSEVIER)S0375-9601(18)30769-2 DE-627 ger DE-627 rda eng 530 DE-600 33.00 bkl Huang, Rong verfasserin aut Universal absorption of two-dimensional materials within 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The universal optical absorption is a fascinating property existing in certain two-dimensional (2D) materials. By introducing a general two-band k ⋅ p effective Hamiltonian, we demonstrate that the absorptance can manifest an universal value at the direct band-edge of 2D materials in three specific cases. However, for general 2D materials, the absorptance becomes nonuniversal. We investigate the dependency of absorptance on the band parameters of general 2D materials. The influences of band-anisotropy and band warping are also considered. Interestingly, we find that the coherent interband coupling and the band warping are responsible for the occurrence of the saddle-point type of Van Hove singularity, which leads to strong light-matter interactions in 2D materials. Two-dimensional materials Optical absorption Van Hove singularity Effective Hamiltonian Li, Jun verfasserin aut Wu, Zhenhua verfasserin (orcid)0000-0003-4552-883X aut Yang, Wen verfasserin aut Huang, Wei verfasserin aut Li, Cheng verfasserin aut Chen, Songyan verfasserin aut Enthalten in Physics letters / A Amsterdam : North-Holland Publ., 1967 382, Seite 3035-3041 Online-Ressource (DE-627)266015298 (DE-600)1466603-0 (DE-576)074959905 1873-2429 nnns volume:382 pages:3035-3041 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.00 Physik: Allgemeines AR 382 3035-3041
allfields_unstemmed	10.1016/j.physleta.2018.07.025 doi (DE-627)ELV000390925 (ELSEVIER)S0375-9601(18)30769-2 DE-627 ger DE-627 rda eng 530 DE-600 33.00 bkl Huang, Rong verfasserin aut Universal absorption of two-dimensional materials within 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The universal optical absorption is a fascinating property existing in certain two-dimensional (2D) materials. By introducing a general two-band k ⋅ p effective Hamiltonian, we demonstrate that the absorptance can manifest an universal value at the direct band-edge of 2D materials in three specific cases. However, for general 2D materials, the absorptance becomes nonuniversal. We investigate the dependency of absorptance on the band parameters of general 2D materials. The influences of band-anisotropy and band warping are also considered. Interestingly, we find that the coherent interband coupling and the band warping are responsible for the occurrence of the saddle-point type of Van Hove singularity, which leads to strong light-matter interactions in 2D materials. Two-dimensional materials Optical absorption Van Hove singularity Effective Hamiltonian Li, Jun verfasserin aut Wu, Zhenhua verfasserin (orcid)0000-0003-4552-883X aut Yang, Wen verfasserin aut Huang, Wei verfasserin aut Li, Cheng verfasserin aut Chen, Songyan verfasserin aut Enthalten in Physics letters / A Amsterdam : North-Holland Publ., 1967 382, Seite 3035-3041 Online-Ressource (DE-627)266015298 (DE-600)1466603-0 (DE-576)074959905 1873-2429 nnns volume:382 pages:3035-3041 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.00 Physik: Allgemeines AR 382 3035-3041
allfieldsGer	10.1016/j.physleta.2018.07.025 doi (DE-627)ELV000390925 (ELSEVIER)S0375-9601(18)30769-2 DE-627 ger DE-627 rda eng 530 DE-600 33.00 bkl Huang, Rong verfasserin aut Universal absorption of two-dimensional materials within 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The universal optical absorption is a fascinating property existing in certain two-dimensional (2D) materials. By introducing a general two-band k ⋅ p effective Hamiltonian, we demonstrate that the absorptance can manifest an universal value at the direct band-edge of 2D materials in three specific cases. However, for general 2D materials, the absorptance becomes nonuniversal. We investigate the dependency of absorptance on the band parameters of general 2D materials. The influences of band-anisotropy and band warping are also considered. Interestingly, we find that the coherent interband coupling and the band warping are responsible for the occurrence of the saddle-point type of Van Hove singularity, which leads to strong light-matter interactions in 2D materials. Two-dimensional materials Optical absorption Van Hove singularity Effective Hamiltonian Li, Jun verfasserin aut Wu, Zhenhua verfasserin (orcid)0000-0003-4552-883X aut Yang, Wen verfasserin aut Huang, Wei verfasserin aut Li, Cheng verfasserin aut Chen, Songyan verfasserin aut Enthalten in Physics letters / A Amsterdam : North-Holland Publ., 1967 382, Seite 3035-3041 Online-Ressource (DE-627)266015298 (DE-600)1466603-0 (DE-576)074959905 1873-2429 nnns volume:382 pages:3035-3041 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.00 Physik: Allgemeines AR 382 3035-3041
allfieldsSound	10.1016/j.physleta.2018.07.025 doi (DE-627)ELV000390925 (ELSEVIER)S0375-9601(18)30769-2 DE-627 ger DE-627 rda eng 530 DE-600 33.00 bkl Huang, Rong verfasserin aut Universal absorption of two-dimensional materials within 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The universal optical absorption is a fascinating property existing in certain two-dimensional (2D) materials. By introducing a general two-band k ⋅ p effective Hamiltonian, we demonstrate that the absorptance can manifest an universal value at the direct band-edge of 2D materials in three specific cases. However, for general 2D materials, the absorptance becomes nonuniversal. We investigate the dependency of absorptance on the band parameters of general 2D materials. The influences of band-anisotropy and band warping are also considered. Interestingly, we find that the coherent interband coupling and the band warping are responsible for the occurrence of the saddle-point type of Van Hove singularity, which leads to strong light-matter interactions in 2D materials. Two-dimensional materials Optical absorption Van Hove singularity Effective Hamiltonian Li, Jun verfasserin aut Wu, Zhenhua verfasserin (orcid)0000-0003-4552-883X aut Yang, Wen verfasserin aut Huang, Wei verfasserin aut Li, Cheng verfasserin aut Chen, Songyan verfasserin aut Enthalten in Physics letters / A Amsterdam : North-Holland Publ., 1967 382, Seite 3035-3041 Online-Ressource (DE-627)266015298 (DE-600)1466603-0 (DE-576)074959905 1873-2429 nnns volume:382 pages:3035-3041 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 33.00 Physik: Allgemeines AR 382 3035-3041
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author	Huang, Rong
spellingShingle	Huang, Rong ddc 530 bkl 33.00 misc Two-dimensional materials misc Optical absorption misc Van Hove singularity misc Effective Hamiltonian Universal absorption of two-dimensional materials within
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topic_title	530 DE-600 33.00 bkl Universal absorption of two-dimensional materials within Two-dimensional materials Optical absorption Van Hove singularity Effective Hamiltonian
topic	ddc 530 bkl 33.00 misc Two-dimensional materials misc Optical absorption misc Van Hove singularity misc Effective Hamiltonian
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title_full	Universal absorption of two-dimensional materials within
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title_sort	universal absorption of two-dimensional materials within
title_auth	Universal absorption of two-dimensional materials within
abstract	The universal optical absorption is a fascinating property existing in certain two-dimensional (2D) materials. By introducing a general two-band k ⋅ p effective Hamiltonian, we demonstrate that the absorptance can manifest an universal value at the direct band-edge of 2D materials in three specific cases. However, for general 2D materials, the absorptance becomes nonuniversal. We investigate the dependency of absorptance on the band parameters of general 2D materials. The influences of band-anisotropy and band warping are also considered. Interestingly, we find that the coherent interband coupling and the band warping are responsible for the occurrence of the saddle-point type of Van Hove singularity, which leads to strong light-matter interactions in 2D materials.
abstractGer	The universal optical absorption is a fascinating property existing in certain two-dimensional (2D) materials. By introducing a general two-band k ⋅ p effective Hamiltonian, we demonstrate that the absorptance can manifest an universal value at the direct band-edge of 2D materials in three specific cases. However, for general 2D materials, the absorptance becomes nonuniversal. We investigate the dependency of absorptance on the band parameters of general 2D materials. The influences of band-anisotropy and band warping are also considered. Interestingly, we find that the coherent interband coupling and the band warping are responsible for the occurrence of the saddle-point type of Van Hove singularity, which leads to strong light-matter interactions in 2D materials.
abstract_unstemmed	The universal optical absorption is a fascinating property existing in certain two-dimensional (2D) materials. By introducing a general two-band k ⋅ p effective Hamiltonian, we demonstrate that the absorptance can manifest an universal value at the direct band-edge of 2D materials in three specific cases. However, for general 2D materials, the absorptance becomes nonuniversal. We investigate the dependency of absorptance on the band parameters of general 2D materials. The influences of band-anisotropy and band warping are also considered. Interestingly, we find that the coherent interband coupling and the band warping are responsible for the occurrence of the saddle-point type of Van Hove singularity, which leads to strong light-matter interactions in 2D materials.
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title_short	Universal absorption of two-dimensional materials within
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author2	Li, Jun Wu, Zhenhua Yang, Wen Huang, Wei Li, Cheng Chen, Songyan
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up_date	2024-07-06T17:48:28.150Z
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By introducing a general two-band k ⋅ p effective Hamiltonian, we demonstrate that the absorptance can manifest an universal value at the direct band-edge of 2D materials in three specific cases. However, for general 2D materials, the absorptance becomes nonuniversal. We investigate the dependency of absorptance on the band parameters of general 2D materials. The influences of band-anisotropy and band warping are also considered. Interestingly, we find that the coherent interband coupling and the band warping are responsible for the occurrence of the saddle-point type of Van Hove singularity, which leads to strong light-matter interactions in 2D materials.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Two-dimensional materials</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Optical absorption</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Van Hove singularity</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Effective Hamiltonian</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Li, Jun</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wu, Zhenhua</subfield><subfield code="e">verfasserin</subfield><subfield code="0">(orcid)0000-0003-4552-883X</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Yang, Wen</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Huang, Wei</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Li, Cheng</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chen, Songyan</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Physics letters / A</subfield><subfield code="d">Amsterdam : North-Holland Publ., 1967</subfield><subfield code="g">382, Seite 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