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Related papers: Giant thermal magnetoconductivity in CrCl$_3$ and …

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Recent thermal-transport experiments on the Kitaev magnet $\alpha$-RuCl$_3$ highlight the challenge in identifying chiral quantum spin liquids through their quantized thermal Hall effect. Here, we propose that variations in the underlying…

Strongly Correlated Electrons · Physics 2025-05-08 Gábor B. Halász

Phonon surface scattering has been at the core of heat transport engineering in nanoscale structures and devices. Herein, we demonstrate that this phonon pathway can be the sole mechanism only below a characteristic, size-dependent…

Since the discovery of the giant magnetoresistance (GMR) effect the use of the intrinsic angular momentum of the electrons has opened up new spin based device concepts. The two channel model of spin-up and spin-down electrons with…

Mesoscale and Nanoscale Physics · Physics 2014-12-24 F. K. Dejene , J. Flipse , G. E. W. Bauer , B. J. van Wees

Metallic transition-metal nitrides (TMNs) are promising conductive ceramics for many applications, whose thermal transport is of great importance in device design. It is found metallic TiN and HfN hold anomalous thermal transport behaviors…

Materials Science · Physics 2020-06-30 Shouhang Li , Ao Wang , Yue Hu , Xiaokun Gu , Zhen Tong , Hua Bao

Interfacial thermal transport is critical for many thermal-related applications such as heat dissipation in electronics. While the total interfacial thermal conductance (ITC) can be easily measured or calculated, the ITC spectral mapping…

Materials Science · Physics 2022-10-26 Yixin Xu , Lina Yang , Yanguang Zhou

Aluminum scandium nitride alloy (Al1-xScxN) is regarded as a promising material for high-performance acoustic devices used in wireless communication systems. Phonon scattering and heat conduction processes govern the energy dissipation in…

Materials Science · Physics 2021-02-26 Chao Yuan , Mingyo Park , Yue Zheng , Jingjing Shi , Rytis Dargis , Samuel Graham , Azadeh Ansari

$\alpha$-RuCl$_3$ is a leading material for proximate Kitaev magnetism. We address the origin of the broad, $\Gamma$-point centered excitation continuum observed by inelastic neutron scattering at elevated temperatures in this compound.…

Materials Science · Physics 2026-02-12 Chaebin Kim , Martin Mourigal

Magnetic memory and logic devices, including prospective ones based on skyrmions, inevitably produce heat. Thus, controlling heat flow is essential for their performance. Here we study how non-collinear spin arrangement affects the magnon…

Strongly Correlated Electrons · Physics 2026-02-04 Margherita Parodi , Sergey Artyukhin

The surface of a 3D topological insulator is conducting and the topologically nontrivial nature of the surface states is observed in experiments. It is the aim of this paper to review and analyze experimental observations with respect to…

Mesoscale and Nanoscale Physics · Physics 2013-03-11 M. Veldhorst , M. Snelder , M. Hoek , C. G. Molenaar , D. P. Leusink , A. A. Golubov , H. Hilgenkamp , A. Brinkman

The dynamic interaction of a quantum rotor with its crystalline environment has been studied by measurement of the thermal conductivity of solid Kr1_c(CH4)_c solutions at c = 0.05-0.75 in the temperature region from 2 up to 40K. The thermal…

Materials Science · Physics 2009-11-10 A. I. Krivchikov , B. Ya. Gorodilov , V. G. Manzhelii , V. V. Dudkin

The in-plane thermal conductivity $k$ of the two-dimensional antiferromagnetic monolayer cuprate Sr$_2$CuO$_2$Cl$_2$ is studied. Analysis of the unusual temperature dependence of $k$ reveals that at low temperatures the heat is carried by…

Strongly Correlated Electrons · Physics 2009-11-10 M. Hofmann , T. Lorenz , K. Berggold , M. Gr"uninger , A. Freimuth , G. S. Uhrig , E. Br"uck

Excitations and scatterings among the quantized lattice vibrations, i.e., phonons, govern the lattice thermal conductivity ($\kappa_l$) in crystalline solids. Therefore, effective modulation of $\kappa_l$ can be achieved through selective…

Materials Science · Physics 2025-07-09 Jyoti Duhan , Chris Wolverton , Koushik Pal

Honeycomb cobalt oxides containing 3$\it{d}$ Co$^{2+}$ ions might realize frustrated magnetism and novel quantum phases. Among candidate materials, Na$_{3}$Co$_{2}$SbO$_{6}$ stands out for its distorted honeycomb lattice and significant…

Strongly Correlated Electrons · Physics 2024-06-26 Haoran Fan , Yue Chen , Yuchen Gu , Yuan Li , Xi Lin

Changes in the spin configuration of atomically-thin, magnetic van-der-Waals multilayers can cause drastic modifications in their opto-electronic properties. Conversely, the opto-electronic response of these systems provides information…

Mesoscale and Nanoscale Physics · Physics 2020-05-28 Zhe Wang , Marco Gibertini , Dumitru Dumcenco , Takashi Taniguchi , Kenji Watanabe , Enrico Giannini , Alberto F. Morpurgo

The minimization of electronics makes heat dissipation of related devices an increasing challenge. When the size of materials is smaller than the phonon mean free paths, phonons transport without internal scatterings and laws of diffusive…

The phonon contribution to the thermal conductivity at low temperature in superconductors with line nodes is calculated assuming that scattering by both nodal quasiparticles and the sample boundaries is significant. It is determined that,…

Superconductivity · Physics 2007-05-23 M. F. Smith

CrCl3 is a layered insulator that undergoes a crystallographic phase transition below room temperature and orders antiferromagnetically at low temperature. Weak van der Waals bonding between the layers and ferromagnetic in-plane magnetic…

First-principles calculations demonstrate an exceptional decoupling of charge and thermal transport along the \textit{a}-axis in CuBiSCl$_2$. The material achieves superior electron mobility (138 cm$^2$/V$\cdot$s at 300 K) through…

Materials Science · Physics 2025-04-03 Yu Wu , Ying Chen , Shuming Zeng , Liujiang Zhou , Chenhan Liu

Magnetoelastic interaction couples spin and lattice degrees of freedom and plays a key role in thermal transport properties of magnetic insulators. In the Kitaev quantum spin liquid, the low energy excitations are charge neutral Majorana…

Strongly Correlated Electrons · Physics 2021-12-06 Haoxiang Li , A. Said , J. Q. Yan , D. M. Mandrus , H. N. Lee , S. Okamoto , Gábor B. Halász , H. Miao

Recent theoretical studies inspired by experiments on the Kitaev magnet $\alpha$-RuCl$_3$ highlight the nontrivial impact of phonons on the thermal Hall conductivity of chiral topological phases. Here we introduce mixed…

Strongly Correlated Electrons · Physics 2022-04-21 Kai Klocke , Joel E. Moore , Jason Alicea , Gábor B. Halász