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Carmelo, Jose M. P.; Cadez, Tilen2,3,5,6; Campbell, David K.; Sing, Michael7,8; Claessen, Ralph7,8
Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ
Source PublicationPHYSICAL REVIEW B
Language英语
KeywordSPIN-CHARGE SEPARATION LUTTINGER LIQUID PHOTOEMISSION MODEL
AbstractThe electronic dispersions of the quasi-one-dimensional organic conductor TTF-TCNQ are studied by angle-resolved photoelectron spectroscopy (ARPES) with higher angular resolution and accordingly smaller step width than in previous studies. Our experimental results suggest that a refinement of the single-band 1D Hubbard model that includes finite-range interactions is needed to explain these photoemission data. To account for the effects of these finite-range interactions we employ a mobile quantum impurity scheme that describes the scattering of fractionalized particles at energies above the standard Tomonaga-Luttinger liquid limit. Our theoretical predictions agree quantitatively with the location in the (k, omega) plane of the experimentally observed ARPES structures at these higher energies. The nonperturbative microscopic mechanisms that control the spectral properties are found to simplify in terms of the exotic scattering of the charge fractionalized particles. We find that the scattering occurs in the unitary limit of (minus) infinite scattering length, which limit occurs within neutron-neutron interactions in shells of neutron stars and in the scattering of ultracold atoms but not in perturbative electronic condensed-matter systems. Our results provide important physical information on the exotic processes involved in the finite-range electron interactions that control the high-energy spectral properties of TTF-TCNQ. Our results also apply to a wider class of 1D and quasi-1D materials and systems that are of theoretical and potential technological interest.
2019
ISSN2469-9950
Volume100Issue:24Pages:245202
Cooperation Status国际
Subject AreaMaterials Science ; Physics
MOST Discipline CatalogueMaterials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
DOI10.1103/PhysRevB.100.245202
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/26963
CollectionSCI期刊论文
Affiliation1.[Carmelo, Jose M. P.; Campbell, David K.] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
2.Carmelo, Jose M. P.] MIT, Dept Phys, Cambridge, MA 02139 USA
3.Univ Minho, Ctr Phys, P-4169007 Oporto, Portugal
4.Univ Porto, P-4169007 Oporto, Portugal
5.Carmelo, Jose M. P.] Univ Minho, Dept Phys, Campus Gualtar, P-4710057 Braga, Portugal
6.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
7.Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China
8.Univ Wurzburg, Phys Inst, D-97074 Wurzburg, Germany
9.Univ Wurzburg, Wurzburg Dresden Cluster Excellence Complex & Top, D-97074 Wurzburg, Germany
Recommended Citation
GB/T 7714
Carmelo, Jose M. P.,Cadez, Tilen,Campbell, David K.,et al. Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ[J]. PHYSICAL REVIEW B,2019,100(24):245202.
APA Carmelo, Jose M. P.,Cadez, Tilen,Campbell, David K.,Sing, Michael,&Claessen, Ralph.(2019).Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ.PHYSICAL REVIEW B,100(24),245202.
MLA Carmelo, Jose M. P.,et al."Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ".PHYSICAL REVIEW B 100.24(2019):245202.
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