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In semiconductor physics, many essential optoelectronic material parameters can be experimentally revealed via optical spectroscopy in sufficiently large magnetic fields. For monolayer transition-metal dichalcogenide semiconductors, this…

Mesoscale and Nanoscale Physics · Physics 2020-08-20 M. Goryca , J. Li , A. V. Stier , T. Taniguchi , K. Watanabe , E. Courtade , S. Shree , C. Robert , B. Urbaszek , X. Marie , S. A. Crooker

Recent observations of the accretion disk around the Herbig Ae/Be star HD169142 revealed its complex and asymmetric morphology indicating the presence of planets. The knowledge of the magnetic field structure in host stars is indispensable…

Solar and Stellar Astrophysics · Physics 2025-04-08 S. Hubrig , S. P. Jarvinen , I. Ilyin , M. Schöller

We present our analysis aimed at inferring average magnetic fields in slowly-rotating solar-like stars. Using the spectral line inversion code SPINOR, we perform high-accuracy line profile fitting and investigate whether Zeeman broadening…

Solar and Stellar Astrophysics · Physics 2010-12-15 Richard I. Anderson , Ansgar Reiners , Sami K. Solanki

The Zeeman splitting of the conduction band in the HgTe quantum wells both with normal and inverted spectrum has been studied experimentally in a wide electron density range. The simultaneous analysis of the SdH oscillations in low magnetic…

Mesoscale and Nanoscale Physics · Physics 2018-07-11 G. M. Minkov , O. E. Rut , A. A. Sherstobitov , S. A. Dvoretski , N. N. Mikhailov

Bright and dark nonlinear magneto-optical resonances associated with the ground state Hanle effect have been studied experimentally and theoretically for D1 excitation of atomic cesium. This system offers the advantage that the separation…

Atomic Physics · Physics 2009-11-13 Marcis Auzinsh , Ruvin Ferber , Florian Gahbauer , Andrey Jarmola , Linards Kalvans

We have considered the effects of space and momentum noncommutativity separately on the zitterbewegung (ZBW) phenomenon. In the space noncommutativity scenario, it has been expressed that, due to the conservation of momentum, the Fourier…

Quantum Physics · Physics 2019-04-16 Mehran Zahiri Abyaneh , Mehrdad Farhoudi

We characterize the K I D1 & D2 lines in order to determine whether they could complement the 850 nm window, containing the Ca II infrared triplet lines and several Zeeman sensitive photospheric lines, that was studied previously. We…

Context. Recent high angular resolution polarimetric continuum observations of circumstellar disks provide new insights into their magnetic field. However, direct constraints are limited to the plane of sky component of the magnetic field.…

Solar and Stellar Astrophysics · Physics 2017-11-22 R. Brauer , S. Wolf , M. Flock

Unconventional magnets with momentum-dependent spin-splitting but zero net magnetization form a recently identified class of collinear magnets that are challenging to probe via conventional means. We show that these systems can be…

Mesoscale and Nanoscale Physics · Physics 2025-11-03 Neelanjan Chakraborti , Sudeep Kumar Ghosh , Snehasish Nandy

We report on a complex nontrivial behavior of the optical anisotropy of quantum dots that is induced by a magnetic field in the plane of the sample. We find that the optical axis either rotates in the opposite direction to that of the…

For about a decade, spectro-polarimetry of HeI 10830 has been applied to the magnetic diagnostics of the solar chromosphere. This resonance line is very versatile, as it is visible both on disk and in off-limb structures, and it has a good…

Astrophysics · Physics 2011-02-11 R. Casini , R. Manso Sainz , B. C. Low

In-plane hole g-factors measured in quantum point contacts based on p-type heterostructures strongly depend on the orientation of the magnetic field with respect to the electric current. This effect, first reported a decade ago and…

Mesoscale and Nanoscale Physics · Physics 2017-09-15 D. S. Miserev , A. Srinivasan , O. A. Tkachenko , V. A. Tkachenko , I. Farrer , D. A. Ritchie , A. R. Hamilton , O. P. Sushkov

Line-intensity mapping, being an imperfect observation of the line-intensity field in a cosmological volume, will be subject to various anisotropies introduced in observation. Existing literature in the context of CO and [C II]…

Cosmology and Nongalactic Astrophysics · Physics 2021-02-01 Dongwoo T. Chung

Magnetic fields are important for stellar photospheres and magnetospheres, influencing photospheric physics and sculpting stellar winds. Observations of stellar magnetic fields are typically made in the visible, although infrared…

Solar and Stellar Astrophysics · Physics 2022-12-21 C. P. Folsom , R. Ignace , C. Erba , R. Casini , T. del Pino Alemán , K. Gayley , K. Hobbs , R. Manso Sainz , C. Neiner , V. Petit , M. E. Shultz , G. A. Wade

A possibility of detecting the effect of photon-axion mixing in a cavity experiment is discussed. There are two photon-axion modes that acquire different indices of refraction and split in an inhomogeneous magnetic field. For a magnetic…

Quantum Physics · Physics 2013-06-26 Mikhail Khankhasayev , Carol Scarlett

A strong anisotropy in the longitudinal resistivity of a 2D electron system has been observed at half-filled high Landau levels. We report on detailed Hartree-Fock calculations of the unidirectional charge density wave (UCDW) orientation…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 T. Jungwirth , A. H. MacDonald , L. Smrčka , S. M. Girvin

The fluorescence spectra of a sub-micron atomic cesium vapor layer observable under resonant excitation on D2 line have been studied in the presence of an external magnetic field. Substantial changes in amplitudes and frequency positions of…

Atomic Physics · Physics 2007-05-23 Aram Papoyan , David Sarkisyan , Kaspars Blush , Marcis Auzinsh , Daniel Bloch , Martial Ducloy

The characterization of magnetic fields within molecular clouds is fundamental to understanding star formation processes. Accurately gauging the three-dimensional structure of these fields presents a challenge, as observational techniques…

Astrophysics of Galaxies · Physics 2024-11-18 Brandon Shane , Blakesley Burkhart , Laura Fissel , Susan E. Clark , Philip Mocz , Michael M. Foley

Nanometer-scale imaging of magnetization and current density is the key to deciphering the mechanisms behind a variety of new and poorly understood condensed matter phenomena. The recently discovered correlated states hosted in atomically…

Mesoscale and Nanoscale Physics · Physics 2022-02-01 Estefani Marchiori , Lorenzo Ceccarelli , Nicola Rossi , Luca Lorenzelli , Christian L. Degen , Martino Poggio

The prominence of nulls in reconnection theory is due to the expected singular current density and the indeterminacy of field-lines at a magnetic null. Electron inertia changes the implications of both features. Magnetic field lines are…

Plasma Physics · Physics 2021-07-01 Todd Elder , Allen H. Boozer