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We report calculations of spin relaxation dynamics of two-dimensional electron gas with spin-orbit interaction at the edge region. It is found that the relaxation of spin polarization near the edge is more slow than relaxation in the bulk.…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Yuriy V. Pershin

Nitrogen-vacancy (NV) centers in diamond have emerged as valuable tools for sensing and polarizing spins. Motivated by potential applications in chemistry, biology, and medicine, we show that NV-based sensors are capable of detecting single…

Quantum Physics · Physics 2016-03-10 M. Bruderer , P. Fernández-Acebal , R. Aurich , M. B. Plenio

While electron spins in silicon heterostructures make attractive qubits, little is known about the coherence of electrons at the Si/SiO2 interface. We report spin relaxation (T1) and coherence (T2) times for mobile electrons and natural…

Materials Science · Physics 2010-11-29 S. Shankar , A. M. Tyryshkin , Jianhua He , S. A. Lyon

Spin transport experiments in graphene, a single layer of carbon atoms, indicate spin relaxation times that are significantly shorter than the theoretical predictions. We investigate experimentally whether these short spin relaxation times…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 M. Popinciuc , C. Józsa , P. J. Zomer , N. Tombros , A. Veligura , H. T. Jonkman , B. J. van Wees

Encapsulation of a single water molecule in fullerene-C60 via chemical surgery provides a unique opportunity to study the distinct rotational dynamics of the water spin isomers at cryogenic temperatures. Here, we employ single-cycle…

The study of electron transport and scattering processes limiting electron mobility in high-quality semiconductor structures is central to solid-state electronics. Here, we uncover an unavoidable source of electron scattering which is…

Mesoscale and Nanoscale Physics · Physics 2016-08-26 S. A. Tarasenko , Guido Burkard

Noble-gas spins feature hours long coherence times owing to their great isolation from the environment, and find practical usage in various applications. However, this isolation leads to extremely slow preparation times, relying on weak…

Quantum Physics · Physics 2022-01-05 Anatoli Tsinovoy , Or Katz , Arie Landau , Nimrod Moiseyev

The present paper explores possible features of electron elastic scattering off endohedral fullerenes $A$@C$_{60}$. It focuses on how dynamical polarization of the encapsulated atom $A$ by an incident electron might alter scattering off…

Atomic Physics · Physics 2015-11-03 V. K. Dolmatov , M. Ya. Amusia , L. V. Chernysheva

This study investigates spin squeezed states in nuclear magnetic resonance (NMR) quadrupolar systems with spins $I=3/2$ and $I=7/2$ at room temperature, taking into account the effects of relaxation on the dynamics. The origin of spin…

Water exists in two forms, para and ortho, that have nuclear spin states with different symmetries. Here we report the conversion of fullerene-encapsulated para-water to ortho-water. The enrichment of para-water at low temperatures is…

The Weyl semimetal WTe2 and MoTe2 show great potential in generating large spin currents since they possess topologically-protected spin-polarized states and can carry a very large current density. In addition, the intrinsic…

The relaxation process of electron spin in systems of electrons interacting with piezoelectric deformation phonons that are mediated through spin-orbit interactions was interpreted from a microscopic point of view using the formula for the…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 Nam Lyong Kang

Time-resolved Faraday rotation is used to study both transverse and longitudinal spin relaxation in chemically-synthesized CdSe nanocrystals (NCs) 22-80 Angstroms in diameter. The precession of optically-injected spins in a transverse…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 J. A. Gupta , D. D. Awschalom , Al. L. Efros , A. V. Rodina

We microscopically derive the spin diffusion equation in an s-wave superconductor in the vicinity of the superconducting transition temperature Tc. Applying the general relation between the relaxation function and the response function to…

Mesoscale and Nanoscale Physics · Physics 2018-12-31 Takuya Taira , Masanori Ichioka , So Takei , Hiroto Adachi

We present a magnetometry, muon spin relaxation ($\mu$SR), and neutron scattering study of the insulating face-centered-cubic spin glass Zn$_{0.5}$Mn$_{0.5}$Te. The magnetometry and $\mu$SR results confirm a spin freezing transition around…

Hydrogen adsorbates in graphene are interesting as they are not only strong Coulomb scatterers but they also induce a change in orbital hybridization of the carbon network from sp^2 into sp^3. This change increases the spin-orbit coupling…

Mesoscale and Nanoscale Physics · Physics 2013-04-26 M. Wojtaszek , I. J. Vera-Marun , T. Maassen , B. J. van Wees

S = 1/2 competing spin chain compound Cs2Cu2Mo3O12 has two dominant exchange interactions of the nearest neighbouring ferromagnetic J1= 93 K and the second nearest neighbouring antiferromagnetic J2= +33 K, and is expected to show the…

Strongly Correlated Electrons · Physics 2018-05-09 A Yagi , K Matsui , T Goto , M Hase , T Sasaki

We study the relaxation of a spin I that is weakly coupled to a quantum mechanical environment. Starting from the microscopic description, we derive a system of coupled relaxation equations within the adiabatic approximation. These are…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 W. Apel , Yu. A. Bychkov

Using one of the methods of quantum nonequilibrium statistical physics we have investigated the spin transport transverse to the normal metal/ferromagnetic insulator interface in hybrid nanostructures. An approximation of the effective…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 I. I. Lyapilin , M. S. Okorokov , V. V. Ustinov

We report on 7Li NMR studies of a spin S = 3/2 triangular lattice antiferromagnet LiCrO2 (Neel temperature TN = 62 K) in the paramagnetic state by using the free-induction decay of 7Li nuclear magnetization. We observed critical divergence…

Strongly Correlated Electrons · Physics 2014-08-01 Y. Itoh