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Related papers: Ballistic anisotropic magnetoresistance

200 papers

Phase separation naturally occurs in a variety of magnetic materials and it often has a major impact on both electric and magnetotransport properties. In resistive switching systems, phase separation can be created on demand by inducing…

The spin-dependent transport properties of paramagnetic metals are roughly invariant under rotation. By contrast, in ferromagnetic materials the magnetization breaks the rotational symmetry, and thus the spin Hall effect is expected to…

The anisotropic magnetoresistance (AMR) in thin permalloy strips was calculated at each steps during magnetization by the finite element method. The magnetization at equilibrium under different external fields was obtained by micromagnetic…

Materials Science · Physics 2019-05-01 Wanli Zhang , Jing Chen , Wenxu Zhang

Realization of noncentrosymmetric magnetic Weyl metals is expected to exhibit anomalous transport properties stemming from the interplay of unusual bulk electronic topology and magnetism. Here, we present spin-valve-like magnetoresistance…

Electronic anisotropy (or `nematicity') has been detected in all main families of cuprate superconductors by a range of experimental techniques -- electronic Raman scattering, THz dichroism, thermal conductivity, torque magnetometry,…

Superconductivity · Physics 2023-08-22 Jonatan Wårdh , Mats Granath , Jie Wu , A. T. Bollinger , Xi He , Ivan Božović

Multiple-band electronic structure and proximity to antiferromagnetic (AF) instability are the key properties of iron-based superconductors. We explore the influence of scattering by the AF spin fluctuations on transport of multiple-band…

Strongly Correlated Electrons · Physics 2016-11-03 A. E. Koshelev

Experimental measurements show that the angular dependence of the anisotropic magnetoresistance (AMR) in L1$_0$ ordered FePt epitaxial films on the current orientation and magnetization direction is a superposition of the corresponding…

Materials Science · Physics 2022-06-17 Y. Dai , Y. W. Zhao , L. Ma , M. Tang , X. P. Qiu , Y. Liu , Z. Yuan , S. M. Zhou

We demonstrate a scalable new ferromagnetic resonance (FMR) technique based on the spin-orbit interaction. An alternating current drives FMR in uniform ferromagnetic structures patterned from the dilute magnetic semiconductors (Ga,Mn)As and…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 D. Fang , H. Kurebayashi , J. Wunderlich , K. Vyborny , L. P. Zarbo , R. P. Campion , A. Casiraghi , B. L. Gallagher , T. Jungwirth , A. J. Ferguson

Magnetically-driven ferroelectric atomic displacements of the order of 10$^{-3} Angstrom have been observed in orthorhombic (perovskite like) YMnO$_3$ by a single-crystal synchrotron x-ray diffraction. The refined polar structure shows the…

Strongly Correlated Electrons · Physics 2011-08-12 D. Okuyama , S. Ishiwata , Y. Takahashi , K. Yamauchi , S. Picozzi , K. Sugimoto , H. Sakai , M. Takata , R. Shimano , Y. Taguchi , T. Arima , Y. Tokura

Triple-component fermions are pseudospin-1 quasiparticles hosted by certain three-band semimetals in the vicinity of their band-touching nodes [Phys. Rev. B {\bf 100}, 235201 (2019)]. The excitations comprise of a flat band and two…

Mesoscale and Nanoscale Physics · Physics 2022-02-08 Ojasvi Pal , Bashab Dey , Tarun Kanti Ghosh

Angular-dependent in-plane magnetoresistance (AMR) for single crystal $Na_{0.34}(H_3O)_{0.15}CoO_2$ with charge ordering is studied systematically. The anisotropic magnetoresistance shows a twofold symmetry at high temperature with rotating…

Strongly Correlated Electrons · Physics 2009-11-11 C. H. Wang , X. H. Chen , G. Wu , T. Wu , H. T. Zhang , J. L. Luo , G. T. Liu , N. L. Wang

We demonstrate that electron wave functions change their dimensionality at some commensurate directions of a magnetic field in conductors with open [quasi-one-dimensional (Q1D)] sheets of Fermi surface. These 1D -> 2D dimensional crossovers…

Superconductivity · Physics 2009-11-10 A. G. Lebed , Heon-Ick Ha , M. J. Naughton

We predict a spin anomalous-Hall unidirectional magnetoresistance (AH-UMR) in conducting bilayers composed of a ferromagnetic layer and a nonmagnetic layer, which does $\textit{not}$ rely on the spin Hall effect in the normal metal…

Mesoscale and Nanoscale Physics · Physics 2022-05-30 M. Mehraeen , Steven S. -L. Zhang

Resistivity measurements of a few-layer black phosphorus (bP) crystal in parallel magnetic fields up to 45 T are reported as a function of the angle between the in-plane field and the source-drain (S-D) axis of the device. The…

Here, by applying a comprehensive approach including magnetic, transport measurements, ARPES band structure measurements, DFT calculations, and analytical theory consideration, we unveil the puzzling origin of the negative isotropic…

Spin-dependent coherent quantum transport through carbon nanotubes (CNT) is studied theoretically within a tight-binding model and the Green's function partitioning technique. End-contacted metal/nanotube/metal systems are modelled and next…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 S. Krompiewski

We study numerically an electronic transport in strongly anisotropic weakly disorderd two-dimensional systems. We find that the conductance distribution is gaussian but the conductance fluctuations increase when anisotropy becomes stronger.…

Condensed Matter · Physics 2009-10-31 Peter Markos

We study the magnetic and transport properties of all-manganite heterostructures consisting of ferromagnetic metallic electrodes separated by an antiferromagnetic barrier. We find that the magnetic ordering in the barrier is influenced by…

Strongly Correlated Electrons · Physics 2008-04-02 J. Salafranca , M. J. Calderon , L. Brey

Understanding and controlling the interfacial magnetic properties of ferromagnetic thin films are crucial for spintronic device applications. However, using conventional magnetometry, it is difficult to detect them separately from the bulk…

Materials Science · Physics 2017-06-21 Le Duc Anh , Noboru Okamoto , Munetoshi Seki , Hitoshi Tabata , Masaaki Tanaka , Shinobu Ohya

Ferromagnetic resonance (FMR) study of magnetic anisotropy is presented for thin layers of IV-VI diluted magnetic semiconductor Ge1-xMn xTe with x=0.14 grown by molecular beam epitaxy (MBE) on KCl (001) substrate with a thin PbTe buffer.…