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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

Calculations of stable and metastable magnetic states as well as minimum energy paths for transitions between states are carried out using a noncollinear extension of the multiple-impurity Alexander-Anderson model and a magnetic force…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 Pavel F. Bessarab , Valery M. Uzdin , Hannes Jónsson

Measurements monitoring the inductive coupling between oscillating radio-frequency magnetic fields and objects of interest create versatile platforms for non-destructive testing. The benefits of ultra low frequency measurements, i.e., below…

Applied Physics · Physics 2024-10-17 L. M. Rushton , L. M. Ellis , J. D. Zipfel , P. Bevington , W. Chalupczak

During recent years interest has been rising for applications of vector light beams towards magnetic field sensing. In particular, a series of experiments were performed to extract information about properties of static magnetic fields from…

We describe an ultra-sensitive atomic magnetometer using optically-pumped potassium atoms operating in spin-exchange relaxation free (SERF) regime. We demonstrate magnetic field sensitivity of 160 aT/Hz$^{1/2}$ in a gradiometer arrangement…

Atomic Physics · Physics 2015-05-14 H. B. Dang , A. C. Maloof , M. V. Romalis

We demonstrate a technique for directly measuring the quadratic Zeeman shift using stimulated Raman transitions.The quadratic Zeeman shift has been measured yielding [delta][nju] = 1296.8 +/-3.3 Hz/G^{2} for magnetically insensitive…

Atomic Physics · Physics 2009-11-13 Runbing Li , Lin Zhou , Jin Wang , Mingsheng Zhan

A method to determine the state of a single quantized cavity mode is proposed. By adiabatic passage, the quantum state of the field is transfered completely onto an internal Zeeman sub-manifold of an atom. Utilizing a method of Newton and…

atom-ph · Physics 2009-10-28 R. Walser , J. I. Cirac , P. Zoller

Recent advances in quantum technologies have enabled the precise control of single trapped molecules on the quantum level. Exploring the scope of these new technologies, we studied theoretically the implementation of qubits and clock…

Atomic Physics · Physics 2020-12-02 Kaveh Najafian , Ziv Meir , Stefan Willitsch

Thin film magnetic heterostructures with competing interfacial coupling and Zeeman energy pro- vide a fertile ground to study phase transition between different equilibrium states as a function of external magnetic field and temperature. A…

Magnetic phases are commonly identified through macroscopic magnetization, yet many ordered states, including antiferromagnets and altermagnets, possess a vanishing net moment despite distinct local spin structure. We show that such an…

Mesoscale and Nanoscale Physics · Physics 2026-01-14 Rishith Reddy , Parveen Kumar , Ankur Das

Recent comparisons of magnetic field directions derived from maser Zeeman splitting with those derived from continuum source rotation measures have prompted new analysis of the propagation of the Zeeman split components, and the inferred…

Astrophysics of Galaxies · Physics 2015-06-19 J. A. Green , M. D. Gray , T. Robishaw , J. L. Caswell , N. M. McClure-Griffiths

Neutral atoms may be trapped via the interaction of their magnetic dipole moment with magnetic field gradients. One of the possible schemes is the cloverleaf trap. It is often desirable to have at hand a fast and precise technique for…

Soft Condensed Matter · Physics 2007-05-23 Ph. W. Courteille , S. R. Muniz , K. Magalhaes , R. Kaiser , L. G. Marcassa , V. S. Bagnato

Double resonance optically pumped magnetometry can be used to measure static magnetic fields with high sensitivity by detecting a resonant atomic spin response to a small oscillating field perturbation. Determination of the resonant…

Atomic Physics · Physics 2017-09-13 Stuart J. Ingleby , Carolyn O'Dwyer , Paul F. Griffin , Aidan S. Arnold , Erling Riis

This paper presents a compact low-temperature atomic vector magnetometer for weak field measurements, using an atomic cell containing two orthogonal multipass cavities. At the working temperature of 75 $^\circ$C, the magnetic field…

Atomic Physics · Physics 2023-03-09 Siqi Liu , Qianqian Yu , Hao Zhou , Dong Sheng

Anisotropy of atomic states is characterized by population differences and coherences between Zeeman sublevels. It can be efficiently created and probed via resonant interactions with light, the technique which is at the heart of modern…

We observe shift in the zero magnetic field resonance as the handedness of resonantly interacting circularly polarized light is changed. The characteristic of the shift resembles with the Zeeman light shift that arises due to interaction of…

Atomic Physics · Physics 2018-01-22 Swarupananda Pradhan

Scanning-probe magnetometry is a valuable experimental tool to investigate magnetic phenomena at the micro- and nanoscale. We theoretically analyze the possibility of measuring magnetic fields via the electrical current flowing through…

Mesoscale and Nanoscale Physics · Physics 2017-02-01 Gábor Széchenyi , András Pályi

Accurately measuring magnetic fields is essential for magnetic-field sensitive experiments in fields like atomic, molecular, and optical physics, condensed matter experiments, and other areas. However, since many experiments are conducted…

Instrumentation and Detectors · Physics 2023-05-31 Ziting Chen , Kin To Wong , Bojeong Seo , Mingchen Huang , Mithilesh K. Parit , Haoting Zhen , Jensen Li , Gyu-Boong Jo

Atomic microwave clocks based on hyperfine transitions, such as the caesium standard, tick with a frequency that is proportional to the magnetic moment of the nucleus. This magnetic moment varies strongly between isotopes of the same atom,…

Atomic Physics · Physics 2011-10-21 J. C. Berengut , V. V. Flambaum , E. M. Kava

We report the evaluation of the second order Zeeman shift in the continuous atomic fountain clock FoCS-2. Because of the continuous operation and of its geometrical constraints, the methods used in pulsed fountains are not applicable. We…

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