Strong atomic reconstruction in twisted bilayers of highly flexible InSe: Machine-learned interatomic potential and continuum model approaches DOI Creative Commons
S. J. Magorrian, Anas Siddiqui, Nicholas D. M. Hine

и другие.

Physical Review Materials, Год журнала: 2025, Номер 9(1)

Опубликована: Янв. 14, 2025

The relaxation of atomic positions to their optimal structural arrangement is crucial for understanding the emergence new physical behavior in long scale superstructures twisted bilayers two-dimensional materials. amount deviation from a rigid moiré structure will depend on elastic properties constituent monolayers which, bilayer, more flexible are, lower energy required deform layers maximize areas with an energetically interlayer atoms. We investigate this reconstruction highly InSe. Results using two methods are demonstrated: first we train machine-learned interatomic potential (MLIP) enable fully atomistic relaxations small-twist-angle large-length-scale supercells while retaining density functional theory (DFT) level accuracy. find substantial out-of-plane corrugation and in-plane domain formation wide range twist angles length scales. then adapt existing continuum approach show that it can reproduce some, but not all, features calculations. Published by American Physical Society 2025

Язык: Английский

Theory of correlated insulators and superconductor at ν = 1 in twisted WSe2 DOI Creative Commons
Sunghoon Kim,

Juan Felipe Mendez-Valderrama,

Xuepeng Wang

и другие.

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Фев. 17, 2025

The observation of a superconducting phase, an intertwined insulating and continuous transition between the two at commensurate filling ν = 1 in bilayers twisted WSe2 θ 3.650 raises number intriguing questions about origin this phenomenology. Here we report possibility displacement-field induced superconductor quantum spin-liquid Mott insulator 1, starting with simplified three-orbital model WSe2, including on-site, nearest-neighbor density-density interactions, chiral-exchange interaction, respectively. By employing parton mean-field theory, discuss nature these correlated insulators, their expected evolution displacement-field, phenomenological properties. Recently, superconductivity phase band-filling was discovered bilayer WSe2. Here, authors theoretically propose that observed state may be electron fractionalization, separated from via transition.

Язык: Английский

Процитировано

3

Excitonic quantum criticality: From multilayer graphene to narrow Chern bands DOI
Zhengyan Darius Shi, Hart Goldman,

Zhihuan Dong

и другие.

Physical review. B./Physical review. B, Год журнала: 2025, Номер 111(12)

Опубликована: Март 25, 2025

Язык: Английский

Процитировано

3

Non-Abelian spin Hall insulator DOI Creative Commons
Ahmed Abouelkomsan, L. F. Fu

Physical Review Research, Год журнала: 2025, Номер 7(2)

Опубликована: Апрель 24, 2025

Motivated by a recent experiment reporting the fractional quantum spin Hall effect in twisted MoTe2, we investigate microscopically prospects of realizing exotic topologically ordered states beyond conventional physics. We show that insulator, state two copies non-Abelian Moore-Read state, can be stabilized at half filling time-reversal conjugate Chern bands. elucidate existence this phase relies on reduction opposite-spin interactions short distances to overcome Ising ferromagnetism. Moreover, demonstrate band mixing provides generic mechanism for achieved. Quite remarkably, find renormalization as small 15% moiré period is sufficient transition completely spin-unpolarized which supports insulator. Furthermore, insulator either break symmetry or preserve it depending underlying topological order. Published American Physical Society 2025

Язык: Английский

Процитировано

3

Stability of anomalous Hall crystals in multilayer rhombohedral graphene DOI

Zhihuan Dong,

Adarsh S. Patri,

T. Senthil

и другие.

Physical review. B./Physical review. B, Год журнала: 2024, Номер 110(20)

Опубликована: Ноя. 14, 2024

Язык: Английский

Процитировано

13

Quantum Anomalous Hall Crystal at Fractional Filling of Moiré Superlattices DOI Creative Commons
D. N. Sheng, Aidan P. Reddy, Ahmed Abouelkomsan

и другие.

Physical Review Letters, Год журнала: 2024, Номер 133(6)

Опубликована: Авг. 7, 2024

We predict the emergence of a state matter with intertwined ferromagnetism, charge order, and topology in fractionally filled moiré superlattice bands. Remarkably, these exhibit quantized integer Hall conductance that is different than expected from filling Chern number band. Microscopic calculations show this phase robustly favored at half-filling (ν=1/2) larger twist angles twisted semiconductor bilayer tMoTe2. Published by American Physical Society 2024

Язык: Английский

Процитировано

10

Superconductivity in twisted transition metal dichalcogenide homobilayers DOI
Jihang Zhu, Yang-Zhi Chou, Ming Xie

и другие.

Physical review. B./Physical review. B, Год журнала: 2025, Номер 111(6)

Опубликована: Фев. 6, 2025

Язык: Английский

Процитировано

2

Superconductivity and quantized anomalous Hall effect in rhombohedral graphene DOI
Youngjoon Choi, Ysun Choi, Marco Valentini

и другие.

Nature, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

Язык: Английский

Процитировано

1

Observation of ultraflat bands in gapped moiré metamaterials DOI
Xingjian Zhang, Tingzhi Liu, Qicheng Zhang

и другие.

Physical review. B./Physical review. B, Год журнала: 2025, Номер 111(12)

Опубликована: Март 19, 2025

Язык: Английский

Процитировано

1

Experimental signature of layer skyrmions and implications for band topology in twisted WSe2 bilayers DOI
Fan Zhang, Nicolás Morales-Durán, Yanxing Li

и другие.

Nature Physics, Год журнала: 2025, Номер unknown

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

1

Superconductivity and spin canting in spin–orbit-coupled trilayer graphene DOI

Caitlin L. Patterson,

Owen Sheekey,

Trevor Arp

и другие.

Nature, Год журнала: 2025, Номер unknown

Опубликована: Май 7, 2025

Язык: Английский

Процитировано

1