Results 111 to 120 of about 166,486,521 (293)

Observation of cavity-tunable topological phases of polaritons

Nature Communications
Topological polaritons characterized by light-matter interactions have become a pivotal platform for exploring new topological phases of matter. Recent theoretical advances unveiled a novel mechanism for tuning the topological phases of polaritons by ...
Dong Zhao, Ziyao Wang, Linyun Yang, Yuxin Zhong, Xiang Xi, Zhenxiao Zhu, Xiaoyuan Jiao, Qing-an Tu, Yan Meng, Bei Yan, Ce Shang, Zhen Gao   +11 more
doaj   +1 more source

Controlling the surface band gap in topological states of matter

, 2020
In der vorliegenden Studie verwenden wir die Methode der winkelaufgelösten Photoemissionsspektroskopie (ARPES) zur Untersuchung der elektronischen Struktur von topologischen Zuständen der Materie. Insbesondere die sogenannten topologischen kristallinen Isolatoren (TCI) Pb1-xSnxSe und Pb1-xSnxTe sowie die Mn-dotierten Z2 topologischen Isolatoren (TI ...
openaire   +2 more sources

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

Picometer registration of zinc impurity states in Bi2Sr2CaCu2O8+delta for phase determination in intra-unit-cell Fourier transform STM [PDF]

, 2012
Direct visualization of electronic-structure symmetry within each crystalline unit cell is a new technique for complex electronic matter research (Lawler et al 2010 Nature 466 347-51, Schmidt et al 2011 New J. Phys. 13 065014, Fujita K et al 2012 J. Phys.
Hamidian, M. H., Firmo, I. A., Orenstein, J. W., Kim, E-A, Fujita, K., Mukhopadhyay, S., Eisaki, H., Uchida, S., Lawler, M. J., Davis, J. C.   +9 more
core   +1 more source

Effective gauge theories of superfluidity with topological order

Journal of High Energy Physics, 2019
We discuss the low-energy dynamics of superfluidity with topological order in (3 + 1) spacetime dimensions. We generalize a topological BF theory by introducing a non-square K matrix, and this generalized BF theory can describe massless Nambu-Goldstone ...
Yuji Hirono, Yuya Tanizaki
doaj   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Impurity-induced resonant states in topological nodal-line semimetals [PDF]

, 2019
Nodal-line semimetals are characterized by a kind of topologically nontrivial bulk-band crossing, giving rise to almost flat surface states. Notably, direct evidence of the surface states is still awaited.
Gao, Y, Zhou, T, Wang, ZD, Chen, W
core   +1 more source

Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses

Advanced Materials, EarlyView.
Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami, Yangming Wang, Seigo Souma, Hiroto Nakamura, Akito Sakai, Takumi Osumi, Hang Su, Hikaru Watanabe, Shun'ichiro Kurosawa, Rikuto Oiwa, Daisuke Nishio‐Hamane, Kosuke Nakayama, Takuya Nomoto, Ryotaro Arita, Takafumi Sato, Satoru Nakatsuji   +15 more
wiley   +1 more source

Discoveries of New Topological States of Matter Beyond Topological Insulators

, 2014
The discoveries of new forms of matter have been so definitive that they are used to name periods in the history of mankind, such as Stone Age, Bronze Age, and Iron Age.
Xu, Suyang
core  

A new class of (2 + 1)-dimensional topological superconductors with topological classification

New Journal of Physics, 2013
The classification of topological states of matter depends on spatial dimension and symmetry class. For non-interacting topological insulators and superconductors, the topological classification is obtained systematically and non-trivial topological ...
Xiao-Liang Qi
doaj   +1 more source