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In the ferrimagnetic semiconductor Mn$_3$Si$_2$Te$_6$, a colossal magnetoresistance (CMR) is observed only when a magnetic field is applied along the magnetic hard axis ($\mathbf{H}\parallel c$). This phenomenon suggests an unconventional…

The polymorph of ${\rm 8-Pmmn}$ borophene is an anisotropic Dirac material with tilted Dirac cones at two valleys. The tilting of the Dirac cones at two valleys are in opposite direction, which manifests itself via valley dependent Landau…

Mesoscale and Nanoscale Physics · Physics 2018-06-13 SK Firoz Islam

We investigate how tilting affects the off-diagonal, dissipationless response of a pair of chirally imbalanced Weyl cones to various external perturbations. The pair of chirally imbalanced Weyl cones can be described as a chiral electron…

Mesoscale and Nanoscale Physics · Physics 2019-07-17 E. C. I. van der Wurff , H. T. C. Stoof

We have studied the magnetic, thermal and magnetotransport properties of polycrystalline Gd5Ge3. It is found that the compound is a strong antiferromagnet and does not undergo any strong metamagnetic transition even in a field of 90 kOe.…

Strongly Correlated Electrons · Physics 2012-11-13 Bibekananda Maji , K. G. Suresh , A. K. Nigam

Temperature-dependent resistivity and magnetoresistance are measured in bulk tetragonal phase of antiferromagnetic CuMnAs and the latter is found to be anisotropic both due to structure and magnetic order. We compare these findings to model…

Recently discovered, altermagnetism represents a third class of collinear magnets. These materials exhibit zero net magnetization, similar to antiferromagnets, but display anomalous transport properties resembling those of ferromagnets.…

Non-reciprocal charge transport that is strongly associated with the structural or magnetic chirality of the quantum materials system is one of the most exotic properties of condensed matter physics. Here, using magnetic alloys film…

Materials Science · Physics 2022-06-20 K. K. Meng , K. Wang , N. N. Zhang , Z. G. Fu , J. K. Chen , Y. Wu , X. G. Xu , J. Miao , Y. Jiang

Recently, a class of Dirac semimetals, such as \textrm{Na}$_{\mathrm{3}}% $\textrm{Bi} and \textrm{Cd}$_{\mathrm{2}}$\textrm{As}$_{\mathrm{3}}$, are discovered to carry $\mathbb{Z}_{2}$ monopole charges. We present an experimental mechanism…

Mesoscale and Nanoscale Physics · Physics 2019-12-10 Ming-Xun Deng , Yan-Yan Yang , Wei Luo , R. Ma , Rui-Qiang Wang , L. Sheng , D. Y. Xing

Integration of transition metal dichalcogenides (TMDs) on ferromagnetic materials (FM) may yield fascinating physics and promise for electronics and spintronic applications. In this work, high-temperature anomalous Hall effect (AHE) in the…

Electron spin-momentum locking together with background magnetic textures can significantly alter the electron transport properties. We theoretically investigate the electron transport at the interface between a topological insulator and a…

Mesoscale and Nanoscale Physics · Physics 2017-10-13 Yasufumi Araki , Kentaro Nomura

Time-Domain Thermoreflectance (TDTR) characterization of FeRh throughout its first-order antiferromagnetic (AF) to ferromagnetic (FM) transition shows that the transient reflectance, $\Delta$R(t)/R, strongly depends on the magnetic order of…

In this report, we present the magnetotransport and magnetization properties of LaSbTe single crystals. Magnetic field-induced turn-on behavior and low-temperature resistivity plateau have been observed. By adopting both metal-semiconductor…

Materials Science · Physics 2018-01-30 Ratnadwip Singha , Arnab Pariari , Biswarup Satpati , Prabhat Mandal

Weyl semimetals are intriguing topological states of matter that support various anomalous magneto-transport phenomena. One such phenomenon is a negative longitudinal ($\mathbf{\nabla} T \parallel \mathbf{B}$) magneto-thermal resistivity,…

Mesoscale and Nanoscale Physics · Physics 2019-09-18 S. Nandy , A. Taraphder , Sumanta Tewari

High entropy carbides ceramics with randomly-distributed multiple principal cations have shown high temperature stability, low thermal conductivity, and possible radiation tolerance. While chemical disorder has been shown to suppress…

Materials Science · Physics 2022-05-23 Cody A. Dennett , Zilong Hua , Eric Lang , Fei Wang , Bai Cui

We report temperature and magnetic field dependence of the thermal transport properties in single crystals of (Sr/Ca)MnBi$_2$ with linear energy dispersion. In SrMnBi$_2$ thermopower is positive, indicating hole-type carriers and the…

Materials Science · Physics 2012-04-11 Kefeng Wang , Limin Wang , C. Petrovic

In this work, we report on the concurrent emergence of the directional Kondo behavior and incommensurate magnetic ordering in a layered material. We employ temperature- and magnetic field-dependent resistivity measurements, susceptibility…

Strongly Correlated Electrons · Physics 2024-06-04 José Guimarães , Dorsa S. Fartab , Michal Moravec , Marcus Schmidt , Michael Baenitz , Burkhard Schmidt , Haijing Zhang

We report on the electronic, magnetic, and magneto-transport properties of Fe-based kagome Dirac system, RFe$_6$Sn$_6$ (R = Ho, Dy). Magnetic properties study reveals an antiferromagnetic order with N$\acute{e}$el temperature of $T_N…

Cd3As2 is a model material of Dirac semimetal with a linear dispersion relation along all three directions in the momentum space. The unique band structure of Cd3As2 makes it with both Dirac and topological properties. It can be driven into…

Materials Science · Physics 2017-07-06 Cai-Zhen Li , Jin-Guang Li , Li-Xian Wang , Liang Zhang , Jing-Min Zhang , Dapeng Yu , Zhi-Min Liao

The identification of a non-trivial band topology usually relies on directly probing the protected surface/edge states. But, it is difficult to achieve electronically in narrow-gap topological materials due to the small (meV) energy scales.…

Interest in ZrTe5 has been reinvigorated in recent years owing to its potential for hosting versatile topological electronic states and intriguing experimental discoveries. However, the mechanism of many of its unusual transport behaviors…

Mesoscale and Nanoscale Physics · Physics 2023-06-28 Yonghe Liu , Hanqi Pi , Kenji Watanabe , Takashi Taniguchi , Genda Gu , Qiang Li , Hongming Weng , Quansheng Wu , Yongqing Li , Yang Xu
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