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Sensors based on spin qubits in 2D crystals offer the prospect of nanoscale sensing volumes, where the close proximity of the sensor and source could provide access to otherwise inaccessible signals. For AC magnetometry, the sensitivity and…

Materials Science · Physics 2024-03-14 Charlie J. Patrickson , Simon Baber , Blanka B. Gaál , Andrew J. Ramsay , Isaac J. Luxmoore

Measurements of magnetic torque are most commonly preformed about a single axis or component of torque. Such measurements are very useful for hysteresis measurements of thin film structures in particular, where high shape anisotropy yields…

A differential, membrane-based nanocalorimeter for general specific heat studies of very small samples, ranging from 0.5 mg to sub-{\mu}g in mass, is described. The calorimeter operates over the temperature range from above room temperature…

Instrumentation and Detectors · Physics 2012-08-20 S. Tagliati , V. M. Krasnov , A. Rydh

In this paper, we introduce two complementary approaches for the accurate prediction of AC losses in large-scale low-temperature superconducting (LTS) magnets. These methods account for the temperature rise within the LTS coil and its…

Accelerator Physics · Physics 2024-10-22 Louis Denis , Vincent Nuttens , Benoît Vanderheyden , Christophe Geuzaine

A C14 Nb0.975Fe2.025 Laves phase compound was investigated aimed at determining the H-T magnetic phase diagram. Magnetization, M, and AC magnetic susceptibility measurements were performed. Concerning the former field-cooled and…

Strongly Correlated Electrons · Physics 2018-02-23 M. Balanda , S. M. Dubiel

Recently, great progress has been made in the field of ultrasensitive microwave detectors, reaching even the threshold for utilization in circuit quantum electrodynamics. However, cryogenic sensors lack the compatibility with broad-band…

Mesoscale and Nanoscale Physics · Physics 2023-03-06 J. -P. Girard , R. E. Lake , W. Liu , R. Kokkoniemi , E. Visakorpi , J. Govenius , M. Möttönen

Nitrogen-vacancy (NV) centers in diamond are considered sensors for detecting magnetic fields. Pulsed optically detected magnetic resonance (ODMR) is typically used to detect AC magnetic fields; however, this technique can only be…

Memristors have been at the forefront of nanoelectronics research for the last decade, offering a valuable component to reconfigurable computing. Their attributes have been studied extensively along with applications that leverage their…

(withdrawn) A combined study of magnetic susceptibility and AC resistance was performed on melt-spun Cu-Co granular magnetic ribbons. The AC resistance as a function of temperature has a sharp maximum. We associate it with a diverging…

Materials Science · Physics 2007-05-23 A. B. Pakhomov , J. C. Denardin , M. Knobel , O. F. de Lima

We report on the development of a capacitance measuring system which allows measurements of capacitance in pulsed magnetic fields up to 61~T. By using this system, magnetic-field responses of various physical quantities such…

We report on the magnetic hyperthermia properties of chemically synthesized ferromagnetic 11 and 16 nm Fe(0) nanoparticles of cubic shape displaying the saturation magnetization of bulk iron. The specific absorption rate measured on 16 nm…

Materials Science · Physics 2015-05-13 B. Mehdaoui , A. Meffre , L. -M. Lacroix , J. Carrey , S. Lachaize , M. Respaud , M. Gougeon , B. Chaudret

An atomic magnetometer operated with elliptically polarized light is investigated theoretically and experimentally. To explore the potential of this magnetometric configuration, the analytical form of the outgoing signal is derived.…

Atomic Physics · Physics 2020-01-08 Shengran Su , Guoyi Zhang , Xin Bi , Xiang He , Wenqiang Zheng , Qiang Lin

We present the design of a compact AC susceptometer for studies under arbitrarily oriented static magnetic fields, in particular magnetic fields oriented transverse to the AC excitation field. The small size of the susceptometer permits…

Strongly Correlated Electrons · Physics 2021-03-26 Felix Rucker , Christian Pfleiderer

Nitrogen vacancy (NV) centres in diamond are attractive as quantum sensors owing to their superb coherence under ambient conditions. However, the NV centre spin resonances are relatively insensitive to some important parameters such as…

Optical magnetometers are currently able to achieve magnetometric sensitivities below 1 fT/Hz^1/2. Although such sensitivities are typically obtained for ultra-low-field measurements, a group of optical magnetometers allows the detection of…

Atomic Physics · Physics 2015-06-03 Przemyslaw Wlodarczyk , Szymon Pustelny , Jerzy Zachorowski , Marcin Lipinski

We introduce a calorimetric approach to probe persistent currents in normal metal rings. The heat capacity of a large ensemble of silver rings is measured by nanocalorimetry under a varying magnetic field at different temperatures (60 mK,…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 Germain Souche , Julien Huillery , H. Pothier , Philippe Gandit , Jerome I. Mars , Sergey Skipetrov , Olivier Bourgeois

The ability to measure magnetic fields on the nanometre scale at cryogenic temperatures is key to understand magnetism on the quantum level and to develop materials for new storage devices or quantum computers. Nitrogen vacancy (NV) centres…

Magnetic vortices existing in soft magnetic nanoparticles with sizes larger than the single-domain diameter can be efficient nano-heaters in biomedical applications. Using micromagnetic numerical simulation we prove that in the optimal…

Mesoscale and Nanoscale Physics · Physics 2017-09-04 N. A. Usov , M. S. Nesmeyanov , V. P. Tarasov

In this paper, a new concept of magnetic nanoparticles as magneto-optical markers is proposed, and a "magneto-optical gate" effect is explored. High-sensitivity detection of magnetic nanoparticles (MNPs) was developed based on this…

Applied Physics · Physics 2023-01-20 Xinchao Cui , Chong Lu , Chunping Liu , Wenzhong Liu

The progress in the semiconductor industry has resulted in great demand for high-frequency magnetic materials applicable in microfabricated inductor cores. Nanocomposite materials, containing magnetic nanoparticles in a non-conducting…

Mesoscale and Nanoscale Physics · Physics 2025-08-28 Mathias Zambach , Ziwei Ouyang , Matti Knaapila , Marco Beleggia , Cathrine Frandsen