Nonreciprocal transport and optical phenomena in quantum materials

N Nagaosa, Y Yanase - Annual Review of Condensed Matter …, 2024‏ - annualreviews.org
In noncentrosymmetric materials, the responses (for example, electrical and optical)
generally depend on the direction of the external stimuli, called nonreciprocal phenomena …

Opportunities in topological insulator devices

O Breunig, Y Ando - Nature Reviews Physics, 2022‏ - nature.com
Topological insulators (TIs) hold promise as a platform for unique quantum phenomena.
However, realizing these phenomena experimentally requires sophisticated devices. In this …

Quantum metric nonlinear Hall effect in a topological antiferromagnetic heterostructure

A Gao, YF Liu, JX Qiu, B Ghosh, T V. Trevisan, Y Onishi… - Science, 2023‏ - science.org
Quantum geometry in condensed-matter physics has two components: the real part quantum
metric and the imaginary part Berry curvature. Whereas the effects of Berry curvature have …

Unification of nonlinear anomalous Hall effect and nonreciprocal magnetoresistance in metals by the quantum geometry

D Kaplan, T Holder, B Yan - Physical review letters, 2024‏ - APS
The quantum geometry has significant consequences in determining transport and optical
properties in quantum materials. Here, we use a semiclassical formalism coupled with …

A correlated ferromagnetic polar metal by design

J Zhang, S Shen, D Puggioni, M Wang, H Sha, X Xu… - Nature materials, 2024‏ - nature.com
Polar metals have recently garnered increasing interest because of their promising
functionalities. Here we report the experimental realization of an intrinsic coexisting …

A zero external magnetic field quantum standard of resistance at the 10− 9 level

DK Patel, KM Fijalkowski, M Kruskopf, N Liu, M Götz… - Nature …, 2024‏ - nature.com
The quantum anomalous Hall effect is of potential use in metrology as it provides access to
Hall resistance quantization in terms of the von Klitzing constant (RK= h/e 2, where h is …

Giant magnetochiral anisotropy from quantum-confined surface states of topological insulator nanowires

HF Legg, M Rößler, F Münning, D Fan… - Nature …, 2022‏ - nature.com
Wireless technology relies on the conversion of alternating electromagnetic fields into direct
currents, a process known as rectification. Although rectifiers are normally based on …

An antiferromagnetic diode effect in even-layered MnBi2Te4

A Gao, SW Chen, B Ghosh, JX Qiu, YF Liu, Y Onishi… - Nature …, 2024‏ - nature.com
In ap–n junction, the separation of positive and negative charges leads to diode transport, in
which charge flows in only one direction. Non-centrosymmetric polar conductors are intrinsic …

Controlled large non-reciprocal charge transport in an intrinsic magnetic topological insulator MnBi2Te4

Z Zhang, N Wang, N Cao, A Wang, X Zhou… - Nature …, 2022‏ - nature.com
Symmetries, quantum geometries and electronic correlations are among the most important
ingredients of condensed matters, and lead to nontrivial phenomena in experiments, for …

Electrical switching of Ising-superconducting nonreciprocity for quantum neuronal transistor

J **ong, J **e, B Cheng, Y Dai, X Cui, L Wang… - Nature …, 2024‏ - nature.com
Nonreciprocal quantum transport effect is mainly governed by the symmetry breaking of the
material systems and is gaining extensive attention in condensed matter physics. Realizing …