Direct observation of an incommensurate charge density wave in the 
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-based superconductor 
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Lee, Jooseop; Nagao, Masanori; Mizuguchi, Yoshikazu; Ruff, Jacob P. C.

doi:10.1103/physrevb.103.245120

Cited by 7 publications

(2 citation statements)

References 55 publications

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“…Therefore, we suggest these spots and incommensurate wave vectors represent the stripe-like incommensurate (∼ 2a) CDW phase in short range. Notably, similar stripe-like incommensurate CDW phases were widely observed in the 1T-TaS 2 , [39] 1T-TaSe 2 , [40,41] LaTe 2 , [42] TbTe 3 , [43] SmTe 3 , [44] Ta 4 Pd 3 Te 16 , [45] NdO 1−x F x BiS 2 , [46] and cuprates. [47] (a) (g)…”

Section: Methodssupporting

confidence: 62%

Observation of multiple charge density wave phases in epitaxial monolayer 1T-VSe₂ film

Zong¹,

Xie²,

Meng³

et al. 2022

Chinese Phys. B

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As a special order of electronic correlation induced by spatial modulation, the charge density wave (CDW) phenomena in condensed matters attract enormous research interests. Here, using scanning-tunneling microscopy in various temperatures, we discover a hidden incommensurate stripe-like CDW order besides the ($\sqrt 7 $×$\sqrt 3 $) CDW phase at low-temperature of 4 K in the epitaxial monolayer 1T-VSe2 film. Combining the variable-temperature angle-resolved photoemission spectroscopic (ARPES) measurements, we discover a two-step transition of an anisotropic CDW gap structure that consists of two parts Δ1 and Δ2. The gap part Δ1 that closes around ~150 K is accompanied with the vanish of the ($\sqrt 7 $×$\sqrt 3 $) CDW phase. While another momentum-dependent gap part Δ2 can survive up to ~340 K, and is suggested to the result of the incommensurate CDW phase. This two-step transition with anisotropic gap opening and the resulted evolution in ARPES spectra are corroborated by our theoretical calculation based on a phenomenological form for the self-energy containing a two-gap structure Δ1+Δ2, which suggests the different forming mechanism between the ($\sqrt 7 $×$\sqrt 3 $) and the incommensurate CDW phases. Our findings provide significant information and deep understandings on the CDW phases in monolayer 1T-VSe2 film as a 2D material.

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Section: Methodssupporting

confidence: 62%

Observation of multiple charge density wave phases in epitaxial monolayer 1T-VSe₂ film

Zong¹,

Xie²,

Meng³

et al. 2022

Chinese Phys. B

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“…NPS shows that intertwined and interlocked nanoscale lattice structures form heterostructures at the atomic limit [13]. This induces the emergence of novel functionalities, such as high-temperature superconductivity, in complex quantum materials as organics [13][14][15][16][17][18][19][20], doped perovskites [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39], iron-based superconductors [40][41][42][43][44], chargedensity-wave materials [45][46][47][48][49][50][51][52], manganites showing colossal magnetoresistance [53][54][55][56][57], doped diborides [58][59]…”

Section: Introductionmentioning

confidence: 99%

Functional Nanoscale Phase Separation and Intertwined Order in Quantum Complex Materials

Campi

Bianconi

2021

Condensed Matter

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Nanoscale phase separation (NPS), characterized by particular types of correlated disorders, plays an important role in the functionality of high-temperature superconductors (HTS). Our results show that multiscale heterogeneity is an essential ingredient of quantum functionality in complex materials. Here, the interactions developing between different structural units cause dynamical spatiotemporal conformations with correlated disorder; thus, visualizing conformational landscapes is fundamental for understanding the physical properties of complex matter and requires advanced methodologies based on high-precision X-ray measurements. We discuss the connections between the dynamical correlated disorder at nanoscale and the functionality in oxygen-doped perovskite superconducting materials.

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Discovery of a Superconductor Bi₅O₄S₃Cl Containing the Unique BiS₃ Layer

Yang,

Fan,

Liu

et al. 2023

Advanced Science

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The BiS2‐based layered superconductors with structures similar to those of cuprates and iron‐based superconductors have stimulated much research interest. Here, a new quaternary compound is reported, Bi5O4S3Cl, which crystalizes in a tetragonal structure with P4/mmm (No. 123) space group having alternately stacking unique BiS3 layers and Bi2O2 layers along the c‐axis with a Cl atom located at the center of the unit cell. A superconducting transition above 3 K is observed for both electrical transport and magnetic measurements. Hall resistivity measurements show its multiband character with a conduction dominated by electron‐like charge carriers. The first‐principles calculations exhibit that the semiconducting parent phase Bi5O4S3Cl becomes metallic when sulfur vacancies are introduced, which hints the origin of superconductivity in Bi5O4S3Cl. The findings will inspire the exploration of new BiS‐based superconductors.

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Direct observation of an incommensurate charge density wave in the BiS2 -based superconductor NdO1−xFx

Cited by 7 publications

References 55 publications

Observation of multiple charge density wave phases in epitaxial monolayer 1T-VSe₂ film

Observation of multiple charge density wave phases in epitaxial monolayer 1T-VSe₂ film

Functional Nanoscale Phase Separation and Intertwined Order in Quantum Complex Materials

Discovery of a Superconductor Bi₅O₄S₃Cl Containing the Unique BiS₃ Layer

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Direct observation of an incommensurate charge density wave in the BiS2 -based superconductor NdO1−xFx

Cited by 7 publications

References 55 publications

Observation of multiple charge density wave phases in epitaxial monolayer 1T-VSe2 film

Observation of multiple charge density wave phases in epitaxial monolayer 1T-VSe2 film

Functional Nanoscale Phase Separation and Intertwined Order in Quantum Complex Materials

Discovery of a Superconductor Bi5O4S3Cl Containing the Unique BiS3 Layer

Contact Info

Product

Resources

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Observation of multiple charge density wave phases in epitaxial monolayer 1T-VSe₂ film

Observation of multiple charge density wave phases in epitaxial monolayer 1T-VSe₂ film

Discovery of a Superconductor Bi₅O₄S₃Cl Containing the Unique BiS₃ Layer