Journal articles: 'Zeeman effect'

1

Calderón Chamochumbi, Carlos. "Efecto Zeeman Normal." Campus 20, no. 20 (December 30, 2015): 39–43. http://dx.doi.org/10.24265/campus.2016.v20n20.03.

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2

Khvingia, N. L., and A. V. Turbiner. "The Zeeman effect revisited." Journal of Physics B: Atomic, Molecular and Optical Physics 25, no. 2 (January 28, 1992): 343–53. http://dx.doi.org/10.1088/0953-4075/25/2/004.

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3

Zhang, Rui, Teng Wu, Jingbiao Chen, Xiang Peng, and Hong Guo. "Frequency Response of Optically Pumped Magnetometer with Nonlinear Zeeman Effect." Applied Sciences 10, no. 20 (October 10, 2020): 7031. http://dx.doi.org/10.3390/app10207031.

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Optically pumped alkali atomic magnetometers based on measuring the Zeeman shifts of the atomic energy levels are widely used in many applications because of their low noise and cryogen-free operation. When alkali atomic magnetometers are operated in an unshielded geomagnetic environment, the nonlinear Zeeman effect may become non-negligible at high latitude and the Zeeman shifts are thus not linear to the strength of the magnetic field. The nonlinear Zeeman effect causes broadening and partial splitting of the magnetic resonant levels, and thus degrades the sensitivity of the alkali atomic magnetometers and causes heading error. In this work, we find that the nonlinear Zeeman effect also influences the frequency response of the alkali atomic magnetometer. We develop a model to quantitatively depict the frequency response of the alkali atomic magnetometer when the nonlinear Zeeman effect is non-negligible and verify the results experimentally in an amplitude-modulated Bell–Bloom cesium magnetometer. The proposed model provides general guidance on analyzing the frequency response of the alkali atomic magnetometer operating in the Earth’s magnetic field. Full and precise knowledge of the frequency response of the atomic magnetometer is important for the optimization of feedback control systems such as the closed-loop magnetometers and the active magnetic field stabilization with magnetometers. This work is thus important for the application of alkali atomic magnetometers in an unshielded geomagnetic environment.

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4

Kozhevnikov, Sergey, Frédéric Ott, and Florin Radu. "Data representations of Zeeman spatial beam splitting in polarized neutron reflectometry." Journal of Applied Crystallography 45, no. 4 (July 14, 2012): 814–25. http://dx.doi.org/10.1107/s0021889812018043.

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The different Zeeman beam-splitting effects in neutron reflectivity experiments in reflection and refraction are discussed. Different possible representations of the experimental Zeeman splitting data in various coordinate systems are investigated. Some of these representations are useful to unambiguously identify the off-specular splitting arising from Zeeman energy and discriminate it from the usual diffuse scattering. Some representations are more suited for the direct extraction of quantitative information about the systems by using the Zeeman splitting effect. The Zeeman splitting can thus be used as a tool rather than being treated as a parasitic effect. Parameters such as the optical and magnetic potentials of buried layers can be directly extracted. The magnetic induction in demagnetized samples can also be probed. These representative characteristics are illustrated by experimental data measured on different systems. In thick AlSiFe films (20 µm), the magnetic induction is determined at the top and bottom interfaces. In thin Co layers (250 nm), the magnetic induction of ferromagnetic domains in the demagnetized state is evaluated.

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Takagi, Kojiro, Shozo Tsunekawa, Kaori Kobayashi, Tomoya Hirota, and Fusakazu Matsushima. "Microwave Zeeman effect of methanol." Journal of Molecular Spectroscopy 377 (March 2021): 111420. http://dx.doi.org/10.1016/j.jms.2021.111420.

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6

Ezawa, Motohiko. "Intrinsic Zeeman Effect in Graphene." Journal of the Physical Society of Japan 76, no. 9 (September 15, 2007): 094701. http://dx.doi.org/10.1143/jpsj.76.094701.

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7

Kauffmann, Christiaan. "On the acoustic Zeeman effect." Journal of the Acoustical Society of America 105, no. 2 (February 1999): 1087. http://dx.doi.org/10.1121/1.425092.

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8

Tan, C. Z. "Zeeman effect in α-quartz." Physica B: Condensed Matter 404, no. 16 (August 2009): 2229–33. http://dx.doi.org/10.1016/j.physb.2009.04.014.

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9

Bleaney, B. "Centenary of the Zeeman effect." Notes and Records of the Royal Society of London 52, no. 1 (January 22, 1998): 131–36. http://dx.doi.org/10.1098/rsnr.1998.0040.

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The years 1994–97 are marked by a plethora of anniversaries. In 1845 Michael Faraday discovered rotation of the plane of polarization of light in a magnetic field, now known as the ‘Faraday effect’. The first wireless communication was transmitted on 14 August 1894 by Oliver Lodge at a meeting of the British Association in Oxford. This message, sent from the old Clarendon Laboratory to the University Museum, was the first demonstration of the transmission of information by radio using the Morse code, well before the work of Marconi. The centenary was marked by a lecture in Oxford by Peter Rowlands, the author (with J. Patrick Wilson) of Oliver Lodge and the invention of radio .

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10

Cazzoli, Gabriele, Valerio Lattanzi, Sonia Coriani, Jürgen Gauss, Claudio Codella, Andrés Asensio Ramos, José Cernicharo, and Cristina Puzzarini. "Zeeman effect in sulfur monoxide." Astronomy & Astrophysics 605 (September 2017): A20. http://dx.doi.org/10.1051/0004-6361/201730858.

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11

Paiva, R. A. S., R. G. G. Amorim, S. C. Ulhoa, A. E. Santana, and F. C. Khanna. "Zeeman Effect in Phase Space." Advances in High Energy Physics 2020 (January 8, 2020): 1–9. http://dx.doi.org/10.1155/2020/4269246.

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The two-dimensional hydrogen atom in an external magnetic field is considered in the context of phase space. Using the solution of the Schrödinger equation in phase space, the Wigner function related to the Zeeman effect is calculated. For this purpose, the Bohlin mapping is used to transform the Coulomb potential into a harmonic oscillator problem. Then, it is possible to solve the Schrödinger equation easier by using the perturbation theory. The negativity parameter for this system is realised.

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12

Feinberg, G., A. Rich, and J. Sucher. "Quadratic Zeeman effect in positronium." Physical Review A 41, no. 7 (April 1, 1990): 3478–80. http://dx.doi.org/10.1103/physreva.41.3478.

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13

Jamet, P., and A. Drezet. "A classical analog of the quantum Zeeman effect." Chaos: An Interdisciplinary Journal of Nonlinear Science 32, no. 3 (March 2022): 033101. http://dx.doi.org/10.1063/5.0081254.

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We extend a recent classical mechanical analog of Bohr’s atom consisting of a scalar field coupled to a massive point-like particle [P. Jamet and A. Drezet, “A mechanical analog of Bohr’s atom based on de Broglie’s double-solution approach,” Chaos 31, 103120 (2021)] by adding and studying the contribution of a uniform weak magnetic field on their dynamics. In doing so, we are able to recover the splitting of the energy levels of the atom called Zeeman’s effect within the constraints of our model and in agreement with the semiclassical theory of Sommerfeld. This result is obtained using Larmor’s theorem for both the field and the particle, associating magnetic effects with inertial Coriolis forces in a rotating frame of reference. Our work, based on the old “double solution” theory of de Broglie, shows that a dualistic model involving a particle guided by a scalar field can reproduce the normal Zeeman effect.

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14

Kanamori, Hideto, Morihisa Momona, and Katsumi Sakurai. "Diode laser spectroscopy of the atmospheric oxygen band." Canadian Journal of Physics 68, no. 3 (March 1, 1990): 313–16. http://dx.doi.org/10.1139/p90-049.

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The atmospheric oxygen band due to magnetic dipole transitions was studied by a diode laser absorption spectroscopy combined with a Zeeman modulation technique. The high-resolution spectrum of the 0–0 band was observed with Doppler-limited resolution and compared with a previous spectrograph measurement. The Zeeman effect at low magnetic field was investigated by the Zeeman line profiles. It was found that the second-order Zeeman effect was observable in the F2 transition of the [Formula: see text] state with magnetic field as low as 150 G.

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15

Hong, Lan, Jun Ge, Shan Shuang, and Da-Quan Liu. "Influence of Rashba effect and Zeeman effect on properties of bound magnetopolaron in an anisotropic quantum dot." Acta Physica Sinica 71, no. 1 (2022): 016301. http://dx.doi.org/10.7498/aps.71.20210803.

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The influence of Rashba effect and Zeeman effect on the properties of bound magnetopolaron in an anisotropic quantum dot are studied with Pekar variational method. The expression of the ground state energy of the bound magnetopolaron is obtained through theoretical derivation. The relationship of the ground state energy of the polaron with the transverse effective confinement length, the longitudinal effective confinement length, the magnetic field cyclotron resonance frequency, and the Coulomb bound potential are discussed, respectively. Owing to the crystal structural inversion asymmetry and the time inversion asymmetry, the polaron energy experiences Rashba spin-orbit splitting and Zeeman splitting. Under the strong and weak magnetic field, we discuss the dominant position of Zeeman effect and Rashba effect, respectively. Owing to the presence of phonons and impurities, the polaron is more stable than the bare electron state.

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16

戚, 丽丽. "Study on the Zeeman Effect Experimental Method Based on the Digital Zeeman Effect Experimental System." Optoelectronics 07, no. 01 (2017): 21–27. http://dx.doi.org/10.12677/oe.2017.71004.

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17

LIU, C. P. "ZEEMAN EFFECT ON THE ELECTRONIC STRUCTURE OF CARBON NANOTORI IN A STRONG MAGNETIC FIELD." International Journal of Modern Physics B 22, no. 27 (October 30, 2008): 4845–52. http://dx.doi.org/10.1142/s0217979208049030.

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We mainly study the Zeeman effect on electronic structure of carbon nanotori in the presence of magnetic field (B) perpendicular to the tori's plane. As a function of magnetic flux (ϕ), the energy gap (Eg) and density of states (DOS) near the Fermi level are obtained in the case of with and without considering the Zeeman effect. Without spin-B interaction, the ϕ-dependent electronic structure would exhibit the periodical Aharonov–Bohm (AB) oscillation. A magnetic-field-induced semiconductor-metal transition is indicated in the variation of energy gap and DOS of armchair tori. The Zeeman effect on electronic structure is notable at relatively large ϕ (~100ϕ0, with ϕ0 = h/e), e.g., more phase transition points may appear in the Eg - B dependence for armchair tori, and the destruction of periodical AB oscillation is distinct due to the Zeeman effect. These results may be observed by scanning tunneling spectroscopy measurement.

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18

Altorra, Ayman H. "Relativistic Pauli equation and Zeeman effect." Physics Essays 22, no. 2 (June 1, 2009): 160–63. http://dx.doi.org/10.4006/1.3105922.

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19

Chéron, B., H. Gilles, J. Hamel, O. Moreau, and H. Sorel. "Laser frequency stabilization using Zeeman effect." Journal de Physique III 4, no. 2 (February 1994): 401–6. http://dx.doi.org/10.1051/jp3:1994136.

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20

Cupała, Wiesław. "Some estimates concerning the Zeeman effect." Studia Mathematica 105, no. 1 (1993): 13–23. http://dx.doi.org/10.4064/sm-105-1-13-23.

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21

Raspini, A. "Relativistic Zeeman effect hydrogen and positronium." Journal of Physics B: Atomic and Molecular Physics 18, no. 19 (October 14, 1985): 3859–69. http://dx.doi.org/10.1088/0022-3700/18/19/009.

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22

Rinaldi, R., P. V. Giugno, R. Cingolani, H. Lipsanen, M. Sopanen, J. Tulkki, and J. Ahopelto. "Zeeman Effect in Parabolic Quantum Dots." Physical Review Letters 77, no. 2 (July 8, 1996): 342–45. http://dx.doi.org/10.1103/physrevlett.77.342.

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23

Kondratyev, V. N. "Zeeman Effect at Explosive Nuclide Formation." Physics of Atomic Nuclei 81, no. 6 (November 2018): 890–93. http://dx.doi.org/10.1134/s1063778818060224.

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24

Agababaev, V. A., A. M. Volchkova, A. S. Varentsova, D. A. Glazov, A. V. Volotka, V. M. Shabaev, and G. Plunien. "Quadratic Zeeman effect in boronlike argon." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 408 (October 2017): 70–73. http://dx.doi.org/10.1016/j.nimb.2017.03.130.

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25

Bauer, M., and L. Kador. "Zeeman effect of single-molecule lines." Chemical Physics Letters 407, no. 4-6 (May 2005): 450–53. http://dx.doi.org/10.1016/j.cplett.2005.03.131.

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26

Uzer, T. "Zeeman effect as an asymmetric top." Physical Review A 42, no. 9 (November 1, 1990): 5787–90. http://dx.doi.org/10.1103/physreva.42.5787.

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27

Krems, R. V., D. Egorov, J. S. Helton, K. Maussang, S. V. Nguyen, and J. M. Doyle. "Zeeman effect in CaF(2Π3/2)." Journal of Chemical Physics 121, no. 23 (December 15, 2004): 11639–44. http://dx.doi.org/10.1063/1.1814097.

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28

Zhao, Jingxiang, Xu Yan, and Qiang Gu. "The Zeeman-split superconductivity with Rashba and Dresselhaus spin–orbit coupling." International Journal of Modern Physics B 31, no. 25 (October 10, 2017): 1745011. http://dx.doi.org/10.1142/s0217979217450114.

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The superconductivity with Rashba and Dressehlaus spin–orbit coupling and Zeeman effect is investigated. The energy gaps of quasi-particles are carefully calculated. It is shown that the coexistence of two spin–orbit coupling might suppress superconductivity. Moreover, the Zeeman effect favors spin-triplet Cooper pairs.

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29

Sharma, Preet. "𝒫𝒯-Symmetric Quantum Mechanics Basics & Zeeman Effect." Reports in Advances of Physical Sciences 04, no. 03 (September 2020): 2050006. http://dx.doi.org/10.1142/s2424942420500061.

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The non-Hermitian aspect of Quantum Mechanics has been of great interest recently. There have been numerous studies on non-Hermitian Hamiltonians written for natural processes. Some studies have even expressed the hydrogen atom in a non-Hermitian basis. In this paper, the principles of non-Hermitian quantum mechanics are applied to the time independent perturbation theory and compared with the Zeeman effect. Here, we have also shown the condition under which the Zeeman Effect results will still be true even though the Hamiltonian taken into consideration is non-Hermitian.

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30

Lankhaar, Boy, Wouter Vlemmings, Gabriele Surcis, Huib Jan van Langevelde, Gerrit C. Groenenboom, and Ad van der Avoird. "Quantum-Chemical calculations revealing the effects of magnetic fields on methanol masers." Proceedings of the International Astronomical Union 13, S336 (September 2017): 23–26. http://dx.doi.org/10.1017/s1743921318000686.

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AbstractMaser observations of both linearly and circularly polarized emission have provided unique information on the magnetic field in the densest parts of star forming regions, where non-maser magnetic field tracers are scarce. While linear polarization observations provide morphological constraints, magnetic field strengths are determined by measuring the Zeeman splitting in circularly polarized emission. Methanol is of special interest as it is one of the most abundant maser species and its different transitions probe unique areas around the protostar. However, its precise Zeeman-parameters are unknown. Experimental efforts to determine these Zeeman-parameters have failed. Here we present quantum-chemical calculations of the Zeeman-parameters of methanol, along with calculations of the hyperfine structure that are necessary to interpret the Zeeman effect in methanol. We use this model in re-analyzing methanol maser polarization observations. We discuss different mechanisms for hyperfine-state preference in the pumping of torsion-rotation transitions involved in the maser-action.

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31

Auzinsh, Marcis. "The evolution and revival structure of angular momentum quantum wave packets." Canadian Journal of Physics 77, no. 7 (November 1, 1999): 491–503. http://dx.doi.org/10.1139/p99-050.

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In this paper, a coherent superposition of angular-momentum states created by absorption of polarized light by molecules is analyzed. Attention is paid to the time evolution of wave packets representing the spatial orientation of the internuclear axis of a diatomic molecule. Two examples are considered in detail. Molecules absorbing light in a permanent magnetic field experiencing the Zeeman effect and molecules absorbing light in a permanent electric field experiencing the quadratic Stark effect. In a magnetic field, we have a wave packet that evolves in time exactly as a classical dipole oscillator in a permanent magnetic field (classical-physics picture of the Zeeman effect). In the second case, we have a wave packet that goes through periodical changes of shape of the packet with revivals of the initial shape. This is pure quantum behavior. The classical motion of angular momentum in an electric field in the case of a quadratic Stark effect is known to be a periodic. Solutions obtained for wave packet evolution are briefly compared with Rydberg-state coherent wave packets and harmonic-oscillator wave packets. Zeeman and Stark effects in small molecules continuously attract the attention of researchers, theoreticians, as well as experimentalists. These investigations allow us to obtain a deeper understanding of the interaction of molecules with stationary external fields and also can be used as a practical tool to measure different molecular characteristics, such as permanent electric or magnetic dipole moments, intramolecular perturbations, etc. It is worthwhile analyzing these effects as an evolution of wave packets. All this motivates a comparison of the quantum and classical picture of Zeeman and Stark effects in molecules.PACS No.: 33.55.Be

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32

Stolze, W. H., and D. H. Sutter. "The Rotational Zeeman Effect of 1,2,4-Trifluorobenzene." Zeitschrift für Naturforschung A 44, no. 7 (July 1, 1989): 687–91. http://dx.doi.org/10.1515/zna-1989-0715.

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Abstract The rotational Zeeman effect of 1,2,4-trifluorobenzene has been studied for 8 low-J rotational transitions in magnetic fields between 1.9 and 2.4 Tesla. The observed susceptibility anisotropics and molecular g-values are: (2χaa−χbb−χcc) = 37.85(69) • 10−6 erg G−2 mole−1, (2χbb−χcc−χaa) = 56.85(54) • 10−6 erg G−2 mole−1, gaa= −0.0393(3), gbb= −0.0277(3), and gcc = 0.0042(2). The Zeeman parameters have been used to derive the molecular electric quadrupole moments and vibronic ground state expectation values for the electronic second moments. The observed out-of-plane quadrupole moment is discussed with reference to an additivity scheme proposed earlier. The observed out-of-plane component of the molecular magnetic susceptibility tensor is in excellent agreement with the value predicted earlier from the CNDO/2-π-electron density alternation at the ring atoms.

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33

Robishaw, Timothy, Carl Heiles, and Eliot Quataert. "Zeeman splitting in OH megamasers." Proceedings of the International Astronomical Union 3, S242 (March 2007): 467–70. http://dx.doi.org/10.1017/s1743921307013610.

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AbstractWe detected significant Zeeman splitting in the 1667 MHz OH megamaser emission from four ultraluminous galaxies. These detections, in addition to being the first extragalactic detection of the Zeeman effect in an emission line, suggest that OH megamasers are excellent extragalactic magnetometers.

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34

Borovkova, Olga V., Felix Spitzer, Vladimir I. Belotelov, Ilya A. Akimov, Alexander N. Poddubny, Grzegorz Karczewski, Maciej Wiater, et al. "Transverse magneto-optical Kerr effect at narrow optical resonances." Nanophotonics 8, no. 2 (January 26, 2019): 287–96. http://dx.doi.org/10.1515/nanoph-2018-0187.

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AbstractMagneto-optical spectroscopy based on the transverse magneto-optical Kerr effect (TMOKE) is a sensitive method for investigating magnetically-ordered media. Previous studies were limited to the weak coupling regime where the spectral width of optical transitions considerably exceeded the Zeeman splitting in magnetic field. Here, we investigate experimentally and theoretically the transverse Kerr effect in the vicinity of comparatively narrow optical resonances in confined quantum systems. For experimental demonstration we studied the ground-state exciton resonance in a (Cd,Mn)Te diluted magnetic semiconductor quantum well, for which the strong exchange interaction with magnetic ions leads to giant Zeeman splitting of exciton spin states. For low magnetic fields in the weak coupling regime, the Kerr effect magnitude grows linearly with increasing Zeeman splitting showing a dispersive S-shaped spectrum, which remains almost unchanged in this range. For large magnetic fields in the strong coupling regime, the magnitude saturates, whereas the spectrum becomes strongly modified by the appearance of two separate peaks. TMOKE is sensitive not only to the sample surface but can also be used to probe in detail the confined electronic states in buried nanostructures if their capping layer is sufficiently transparent.

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35

Deguchi, S., G. Nedoluha, and W. D. Watson. "Circular Polarization of Astrophysical Masers." Symposium - International Astronomical Union 129 (1988): 237–38. http://dx.doi.org/10.1017/s0074180900134564.

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Results of further calculations are presented to explore the non-linear, Zeeman overlap effect as the cause for the circular polarization of astrophysical masers. Emphasis is placed on the regime in which the Zeeman splitting is small and on the variation of the polarization with maser saturation.

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36

Ovsiannikov, V. D., and E. V. Tchaplyguine. "The PaschenBack effect in helium spectra revisited." Canadian Journal of Physics 80, no. 11 (November 1, 2002): 1383–89. http://dx.doi.org/10.1139/p02-102.

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The complete information for the intensities of the Zeeman components in the helium triplet lines corresponding to the radiation transitions n3 PJM [Formula: see text] n' 3S1M ' is analyzed in the field-strength region from anomalous Zeeman effects to complete PaschenBack effects. The diagonalization of the paramagnetic interaction for n3PJM was carried out for the states with magnetic quantum number M = 0 in the Hilbert space of dimension 3, taking account of all three fine-structure sublevels, J = 0,1,2. The results of the numerical calculations for line positions and intensities are presented in a table and figures. The departure from the previously known data is discussed. PACS Nos.: 32.60+i, 32.70Fw, 32.30-r

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37

Chen, Augustine C. "Bases for the hydrogenic quadratic Zeeman effect." Physical Review A 31, no. 4 (April 1, 1985): 2685–87. http://dx.doi.org/10.1103/physreva.31.2685.

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38

Kawalec, T., M. J. Kasprowicz, L. Józefowski, and T. Dohnalik. "Zeeman Effect Observed in the Evanescent Wave." Acta Physica Polonica A 105, no. 4 (April 2004): 349–55. http://dx.doi.org/10.12693/aphyspola.105.349.

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39

Uitenbroek, H., E. Miller‐Ricci, A. Asensio Ramos, and J. Trujillo Bueno. "The Zeeman Effect in the G Band." Astrophysical Journal 604, no. 2 (April 2004): 960–68. http://dx.doi.org/10.1086/382037.

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40

Weitenbeck, Anthony J. "An astronomical illustration of the Zeeman effect." Physics Teacher 28, no. 7 (October 1990): 511–12. http://dx.doi.org/10.1119/1.2343132.

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41

Ponomarev, B. K., A. I. Popov, B. S. Red’kin, J. Zeman, G. Martinez, A. G. M. Jansen, and P. Wyder. "The longitudinal Zeeman effect in terbium molybdate." Journal of Magnetism and Magnetic Materials 300, no. 1 (May 2006): e422-e425. http://dx.doi.org/10.1016/j.jmmm.2005.10.182.

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42

Suchocki, A., S. Biernacki, G. Boulon, A. Brenier, M. Potemski, and A. Wysmołek. "Enhanced Zeeman effect in GGG:Mn4+,Ca crystals." Chemical Physics 298, no. 1-3 (March 2004): 267–72. http://dx.doi.org/10.1016/j.chemphys.2003.10.026.

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43

Briet, Philippe. "Bender–Wu formula for the Zeeman effect." Journal of Mathematical Physics 36, no. 8 (August 1995): 3871–82. http://dx.doi.org/10.1063/1.530934.

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44

Raspini, Andrea. "Relativistic Zeeman effect in positronium,n=2." International Journal of Theoretical Physics 28, no. 11 (November 1989): 1359–69. http://dx.doi.org/10.1007/bf00671854.

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45

Savchenko, O. Ya. "Relativistic shift of the linear Zeeman effect." Optics and Spectroscopy 101, no. 2 (August 2006): 179–82. http://dx.doi.org/10.1134/s0030400x06080029.

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46

Krantzman, Kristin D., John A. Milligan, and David Farrelly. "Semiclassical mechanics of the quadratic Zeeman effect." Physical Review A 45, no. 5 (March 1, 1992): 3093–103. http://dx.doi.org/10.1103/physreva.45.3093.

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47

Maeda, Atsushi, and Hiroshi Sugimoto. "Zeeman effect on anisotropic 4f electron systems." Physica A: Statistical Mechanics and its Applications 144, no. 2-3 (August 1987): 299–309. http://dx.doi.org/10.1016/0378-4371(87)90193-2.

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48

Landi Degl'Innocenti, E. "The Zeeman effect: applications to solar physics." Astronomische Nachrichten 324, no. 4 (June 2003): 393–96. http://dx.doi.org/10.1002/asna.200310143.

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49

L�pez Gondar, J., B. Costa, C. Trallero-Giner, and G. Marques. "Zeeman Effect in Self-Assembled Quantum Dots." physica status solidi (b) 230, no. 2 (April 2002): 437–42. http://dx.doi.org/10.1002/1521-3951(200204)230:2<437::aid-pssb437>3.0.co;2-i.

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50

Momjian, Emmanuel, and Anuj P. Sarma. "Zeeman Effect Observations in Class I Methanol Masers." Proceedings of the International Astronomical Union 14, A30 (August 2018): 140. http://dx.doi.org/10.1017/s1743921319003910.

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AbstractWe report the detection of the Zeeman effect in the 44 GHz Class I methanol maser line toward the star forming region DR21W. The 44 GHz methanol masers in this source occur in a ∼3” linear structure that runs from northwest to southeast, with the two dominant components at each end, and several weaker maser components in between. Toward a 93 Jy maser in the dominant northwestern component, we find a significant Zeeman detection of −23.4 ± 3.2 Hz. If we use the recently published result of Lankhaar et al. (2018) that the F=5-4 hyperfine transition is responsible for the 44 GHz methanol maser line, then their value of z = −0.92 Hz mG−1 yields a line-of-sight magnetic field of Blos =25.4 ± 3.5 mG. If Class I methanol masers are pumped in high density regions with n∼107–8 cm−3, then magnetic fields in these maser regions should be a few to several tens of mG. Therefore, our result in DR21W is certainly consistent with the expected values.Using the above noted splitting factor in past Zeeman effect detections in Class I methanol masers reported by Sarma & Momjian (2011) and Momjian & Sarma (2017) in the star forming regions OMC-2 and DR21(OH) result in Blos values of 20.0 ± 1.2 mG and 58.2 ± 2.9 mG, respectively. These are also consistent with the expected values.

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Journal articles on the topic 'Zeeman effect'

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