User profiles for Hechen Ren

Hechen Ren

Harvard University
Verified email at physics.harvard.edu
Cited by 3060

Electronic correlations in twisted bilayer graphene near the magic angle

…, A Thomson, H Arora, R Polski, Y Zhang, H Ren… - Nature physics, 2019 - nature.com
Twisted bilayer graphene with a twist angle of around 1.1 features a pair of isolated flat
electronic bands and forms a platform for investigating strongly correlated electrons. Here, we …

Topological superconductivity in a phase-controlled Josephson junction

H Ren, F Pientka, S Hart, AT Pierce, M Kosowsky… - Nature, 2019 - nature.com
Topological superconductors can support localized Majorana states at their boundaries 1 ,
2 , 3 , 4 – 5 . These quasi-particle excitations obey non-Abelian statistics that can be used to …

Induced superconductivity in the quantum spin Hall edge

S Hart, H Ren, T Wagner, P Leubner, M Mühlbauer… - Nature Physics, 2014 - nature.com
Topological insulators are a newly discovered phase of matter characterized by gapped bulk
states surrounded by conducting boundary states 1 , 2 , 3 . Since their theoretical discovery, …

Tuning topological superconductivity in phase-controlled Josephson junctions with Rashba and Dresselhaus spin-orbit coupling

B Scharf, F Pientka, H Ren, A Yacoby, EM Hankiewicz - Physical Review B, 2019 - APS
Recently, topological superconductors based on Josephson junctions in two-dimensional
electron gases with strong Rashba spin-orbit coupling have been proposed as attractive …

Spin and valley quantum Hall ferromagnetism in graphene

AF Young, CR Dean, L Wang, H Ren… - Nature Physics, 2012 - nature.com
Electronic systems with multiple degenerate degrees of freedom can support a rich variety of
broken symmetry states. In a graphene Landau level (LL), strong Coulomb interactions and …

Controlled finite momentum pairing and spatially varying order parameter in proximitized HgTe quantum wells

S Hart, H Ren, M Kosowsky, G Ben-Shach, P Leubner… - Nature Physics, 2017 - nature.com
Conventional s-wave superconductivity arises from singlet pairing of electrons with opposite
Fermi momenta, forming Cooper pairs with zero net momentum. Recent studies have …

Substrate Engineering toward Selective Growth of Ultrathin WC Crystals and Heterostructures via Liquid Cu‐Zn Catalyst

…, Q Zhang, L Li, Z Han, W Gao, H Ren… - Advanced Functional …, 2024 - Wiley Online Library
Transition metal carbides (TMCs) grown by chemical vapor deposition (CVD) offer promise
for numerous novel phenomena and applications in the 2D limit. Despite considerable efforts …

Nanorobotic actuator based on interlayer sliding ferroelectricity and field-tunable friction

H Ren, J Wang, W He - Physical Review Materials, 2025 - APS
Interlayer sliding ferroelectricity has been discovered in a variety of two-dimensional (2D)
materials with superb features such as atomic thickness, fast response, and fatigue resistance. …

Berezinskii-Kosterlitz-Thouless-like localization-localization transitions in disordered two-dimensional quantized quadrupole insulators

C Wang, W He, H Ren, XR Wang - Physical Review B, 2024 - APS
Anderson localization transitions are usually referred to as disorder-driven quantum phase
transitions from delocalized states to localized states. Here we report an unconventional “…

[BOOK][B] Topological Superconductivity in Two-Dimensional Electronic Systems

H Ren - 2018 - search.proquest.com
The study of topological phases has been at the forefront of condensed matter physics since
the turn of the century and has generated a productive synergy between theoretical and …