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On-chip Electron Spin Resonance (ESR) of magnetic molecules requires the ability to precisely position nanosized samples in antinodes of the electro-magnetic field for maximal magnetic interaction. A method is developed to entrap…

Mesoscale and Nanoscale Physics · Physics 2009-08-28 N. Groll , S. Bertaina , M. Pati , N. S. Dalal , I. Chiorescu

Chirality, an intrinsic handedness, is one of the most intriguing fundamental phenomena in nature. Materials composed of chiral molecules find broad applications in areas ranging from nonlinear optics and spintronics to biology and…

Mesoscale and Nanoscale Physics · Physics 2020-03-09 Yu. Tikhonov , S. Kondovych , J. Mangeri , M. Pavlenko , L. Baudry , A. Sené , A. Galda , S. Nakhmanson , O. Heinonen , A. Razumnaya , I. Luk'yanchuk , V. M. Vinokur

The circular dichroism (ICD) induced from interaction of chiral molecules with achiral plasmonic metal nanostructures has improved sensitivity of molecular chirality detection. Although experimental results have presented several orders…

Spin-dependent transport was investigated in a spin metal-oxide-semiconductor field-effect transistors (spin MOSFET) with ferromagnetic MnAs source and drain (S/D) contacts. The spin MOSFET of bottom-gate type was fabricated by…

Materials Science · Physics 2010-02-02 Ryosho. Nakane , Tomoyuki Harada , Kuniaki Sugiura , Satoshi Sugahara , Masaaki Tanaka

It is theoretically well established that a spin-dependent electron transmission generally appears in chiral systems, even without magnetic components, as long as a strong spin-orbit coupling is present in some of its elements. However, how…

Mesoscale and Nanoscale Physics · Physics 2023-07-03 M. A. García-Blázquez , W. Dednam , J. J. Palacios

Altermagnets (A$\ell$Ms) constitute a novel family of magnetic materials characterized by the absence of net magnetization and the presence of spin-polarized band structures. Whereas A$\ell$M phases were initially proposed in collinear…

Materials Science · Physics 2026-03-03 Mengli Hu , Mikel I. Iraola , Paul McClarty , Jeroen van den Brink , Maia G. Vergniory

Chirality refers to a geometric phenomenon in which objects are not superimposable on their mirror image. Structures made of nano-scale chiral elements can display chiroptical effects, such as dichroism for left- and right- handed…

Optics · Physics 2020-02-25 Behrooz Semnani , Jeremy Flannery , Rubayet Al Maruf , Michal Bajcsy

Large ballistic magnetoresistance (BMR) has been measured in Ni single-atom conductors electrodeposited between microfabricated thin films. These measurements irrefutably eliminate any magnetostriction related artifacts in the BMR effect.

Materials Science · Physics 2009-11-10 Matthew R. Sullivan , Douglas A. Boehm , Daniel A. Ateya , Susan Z. Hua , Harsh Deep Chopra

Antiferromagnetic Weyl semimetals with spin chirality offer excellent platforms to address the Berry phase physics, which manifests prominently in several of their electro-optical and electro-magnetic responses including as a large…

Materials Science · Physics 2023-07-18 Vinay Sharma , Rajeev Nepal , Ramesh C. Budhani

We report on electrical resistivity, magnetoresistance (MR) and Hall effect measurements in four non-superconducting BaFe$_{2-x}$TM$_x$As$_2$ (TM = Mn, Cu and Ni) single crystals with small values of the chemical substitution $x$. The spin…

The charge and spin of the electrons in solids have been extensively exploited in electronic devices and in the development of spintronics. Another attribute of electrons - their orbital nature - is attracting growing interest for…

We observe an unusual behavior of the spin Hall magnetoresistance (SMR) measured in a Pt ultra-thin film deposited on a ferromagnetic insulator, which is a tensile-strained LaCoO3 (LCO) thin film with the Curie temperature Tc=85K. The SMR…

This work investigates the effect of chiral-induced spin selectivity (CISS) on quantum spin coherence in the radical pair mechanism of avian magnetoreception. Additionally, we examine the utilitarian role of coherence for the avian compass…

Quantum Physics · Physics 2023-05-23 Yash Tiwari , Vishvendra Singh Poonia

Chiral induced spin selectivity is a phenomenon that has been attributed to chirality, spin-orbit interactions, and non-equilibrium conditions, while the role of electron exchange and correlations have been investigated only marginally…

Mesoscale and Nanoscale Physics · Physics 2021-04-28 J. Fransson

Integration of magneto-electric and spintronic sensors presents a massive potential for advancing flexible and wearable technology. Magnetic nanowires are core components for building such devices, and therefore it important to realize…

Mesoscale and Nanoscale Physics · Physics 2020-06-19 Giuseppe Muscas , Petra E. Jönsson , I. G. Serrano , Örjan Vallin , M. Venkata Kamalakar

Sensing and discriminating between enantiomers of chiral molecules remains a significant challenge in the design of sensor platforms. In the case of chemoresistive sensors, where detection relies on changes in electrical response upon…

We theoretically investigate tunneling magnetoresistance (TMR) devices, which are probing the spin-momentum coupled nature of surface states of the three-dimensional topological insulator Bi$_{2}$Se$_{3}$. Theoretical calculations are…

Mesoscale and Nanoscale Physics · Physics 2015-01-29 Matthias Götte , Tomi Paananen , Günter Reiss , Thomas Dahm

Extended solids that combine unpaired electron spin and structural chirality can host unconventional magnetic behaviors with potential for electronic technologies. A versatile strategy for creating chiral solids is incorporation of chiral…

The first observation of tungsten disulfide liquid crystalline nanocomposites in dispersions of liquid phase-exfoliated flakes is demonstrated in a range of organic solvents. The nanocomposites demonstrate significant birefringence and…

Surface based geometries of microfabricated wires or patterned magnetic films can be used to magnetically trap and manipulate ultracold neutral atoms or Bose-Einstein condensates. We investigate the magnetic properties of such atom chips…

Atomic Physics · Physics 2009-11-13 M. Volk , S. Whitlock , B. V. Hall , A. I. Sidorov
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