Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ

doi:10.1103/PhysRevB.100.245202

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	Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ
	Carmelo, Jose M. P.; Cadez, Tilen 1,5,6,8; Campbell, David K.; Sing, Michael 4,9; Claessen, Ralph 4,9
刊名	PHYSICAL REVIEW B
	2019
卷号	100 期号:24 页码:245202
关键词	SPIN-CHARGE SEPARATION LUTTINGER LIQUID PHOTOEMISSION MODEL
ISSN号	2469-9950
DOI	10.1103/PhysRevB.100.245202
英文摘要	The 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.
学科主题	Materials Science ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/26963]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Carmelo, Jose M. P.] MIT, Dept Phys, Cambridge, MA 02139 USA 2.Univ Porto, P-4169007 Oporto, Portugal 3.[Carmelo, Jose M. P.; Campbell, David K.] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA 4.Univ Wurzburg, Phys Inst, D-97074 Wurzburg, Germany 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.Univ Wurzburg, Wurzburg Dresden Cluster Excellence Complex & Top, D-97074 Wurzburg, Germany 8.Univ Minho, Ctr Phys, P-4169007 Oporto, Portugal 9.Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China
推荐引用方式 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.