Magnetoelectric multipoles in metals

F Thöle, NA Spaldin - Philosophical Transactions of the …, 2018 - royalsocietypublishing.org
In this paper, we demonstrate computationally the existence of magnetoelectric multipoles,
arising from the second-order term in the multipole expansion of a magnetization density in …

Unusual interlayer quantum transport behavior caused by the zeroth Landau level in YbMnBi2

JY Liu, J Hu, D Graf, T Zou, M Zhu, Y Shi, S Che… - Nature …, 2017 - nature.com
Relativistic fermions in topological quantum materials are characterized by linear energy–
momentum dispersion near band crossing points. Under magnetic fields, relativistic fermions …

Metamagnetic texture in a polar antiferromagnet

DA Sokolov, N Kikugawa, T Helm, H Borrmann… - Nature Physics, 2019 - nature.com
The notion of a simple ordered state implies homogeneity. If the order is established by a
broken symmetry, the elementary Landau theory of phase transitions shows that only one …

Emergent electronic and magnetic state in CaRuO induced by Ti doping

X Ke, J Peng, DJ Singh, T Hong, W Tian… - Physical Review B …, 2011 - APS
We report an emergent electronic and magnetic state in the bilayer ruthenate Ca 3 Ru 2 O 7
upon doping with a small concentration of Ti on the Ru sites. In contrast to a quasi-two …

From quasi-two-dimensional metal with ferromagnetic bilayers to Mott insulator with G-type antiferromagnetic order in Ca(RuTi)O

J Peng, X Ke, G Wang, JE Ortmann, D Fobes… - Physical Review B …, 2013 - APS
We report the electronic and magnetic phase diagram of Ca 3 (Ru 1− x Ti x) 2 O 7. With Ti
doping, the system evolves from a quasi-two-dimensional metal with ferromagnetic (FM) …

Magnetoresistance relaxation steps originating from dynamic spin-orbital interactions in

HY Niu, X He, Z Zeng, YJ Song, DQ Jiang, H Huang… - Physical Review B, 2022 - APS
The in-plane magnetoresistance and magnetostriction of Ca 3 Ru 2 O 7 single crystals were
investigated under pulsed magnetic field. Field-induced resistance steps and structural …

Emergence of a competing stripe phase near the Mott transition in Ti-doped bilayer calcium ruthenates

A Gangshettiwar, Y Zhu, Z Jiang, J Peng, Y Wang, J He… - Physical Review B, 2020 - APS
We report the nanoscale imaging of Ti-doped bilayer calcium ruthenates during the Mott
metal-insulator transition by microwave impedance microscopy. Different from a typical first …

Magnetoentropic Signatures of the Textured Metamagnetic Phase of an Antiferromagnetic Polar Metal: Ca3Ru2O7

N Kikugawa, DA Sokolov, C Sow, Y Maeno… - Journal of the Physical …, 2021 - journals.jps.jp
We report the magnetocaloric effect of a bilayered perovskite ruthenate Ca3Ru2O7 that has
recently been recognized as an antiferromagnetic polar metal. The magnetic entropy …

A Simplified Method Characterizing Magnetic Ordering Modulated Photo‐Thermoelectric Response in Noncentrosymmetric Semimetal Ca3Ru2O7

Q Chen, J Li, H Zhu, T Zhang, W Tang… - Advanced Photonics …, 2022 - Wiley Online Library
Recently, the spin entropy related to magnetic‐order transition, which contributes to
thermoelectric power is attracting more and more attention. Here, it is demonstrated that the …

[HTML][HTML] Normal and inverse bulk spin valve effects in single-crystal ruthenates

J Peng, J Hu, XM Gu, GT Zhou, JY Liu… - Applied Physics …, 2016 - pubs.aip.org
The current-perpendicular-to-plane magnetoresistivity (CPP-MR)/ρ c (B) is investigated in
single crystal ruthenates Ca 3 (Ru 1− x Ti x) 2 O 7 (x= 0.02). This material is naturally …