Results 91 to 100 of about 34,597 (219)

Exchange Length Tailored Magnetic Resonance for Broadband Absorption in FeCo‐Based Alloys

Advanced Science, EarlyView.
To break the high‐frequency magnetic loss bottleneck in soft magnetic alloys, a magnetic exchange length (Lex)‐guided strategy is proposed. Cu doping increases Lex and intergranular coupling, which effectively reduces magnetic anisotropy and pushes the exchange resonance to 12.0 GHz.
Xiaoyang Liu, Yingli Zhu, Shuangxin Zhang, Gangtao Luo, Mengke Qiao, Jiang Wu, Xiangcheng Li   +6 more
wiley   +1 more source

Interdisciplinary Studies of the Mausoleum Complex Nearby the Village of Lapas (2022–2023)

Археология евразийских степей
Nearby the village of Lapas in the Astrakhan region, there is a complex of Golden Horde mausoleums. In 2022, 2023 the Institute of Archaeology named after A.Kh.
Vladimir G. Bezdudny, Gulnur Kh. Zaripova, Lyudmila V. Ovechkina, Evgeny M. Pigarev, Airat G. Sitdikov   +4 more
doaj   +1 more source

Exceptional Antimodes in Multi‐Drive Cavity Magnonics

Advanced Electronic Materials, EarlyView.
Driven‐dissipative cavity‐magnonics provides a flexible platform for engineering non‐Hermitian physics such as exceptional points. Here, using a four‐port, three‐mode system with controllable microwave interference, antimodes and coherent perfect extinction (CPE) are realized, enabling active tuning to antimode exceptional points.
Mawgan A. Smith, Ryan D. McKenzie, Alban Joseph, Robert L. Stamps, Rair Macêdo   +4 more
wiley   +1 more source

Depairing field, onset temperature and the nature of the transition in cuprates

, 2006
The depairing (upper critical) field $H_{c2}$ in hole-doped cuprates has been inferred from magnetization curves $M$-$H$ measured by torque magnetometry in fields $H$ up to 45 T. We discuss the implications of the results for the pair binding energy, the
Baskaran, Bergemann, Doniach, Emery, Gollub, Hirakawa, J.G. Checkelsky, Li, Lu Li, M.J. Naughton, N.P. Ong, Oganesyan, Seiki Komiya, Shimpei Ono, Wang, Wang, Wang, Wang, Yayu Wang, Yoichi Ando   +19 more
core   +1 more source

High‐Density and Scalable Graphene Hall Sensor Arrays Through Monolithic CMOS Integration

Advanced Electronic Materials, EarlyView.
This work explores strategies to create high‐density arrays of graphene Hall‐effect magnetic field sensors through monolithic integration with silicon CMOS biasing and multiplexing circuitry. High sensor yield and magnetic sensing performance are achieved through careful choices in the custom CMOS chip design and the graphene integration process.
Vasant Iyer, Nishal Shah, A. T. Charlie Johnson, David A. Issadore, Firooz Aflatouni   +4 more
wiley   +1 more source

Magnetometry with entangled atomic samples

, 2004
We present a theory for the estimation of a scalar or a vector magnetic field by its influence on an ensemble of trapped spin polarized atoms. The atoms interact off-resonantly with a continuous laser field, and the measurement of the polarization ...
H. Carmichael, Klaus Mølmer, Lars Bojer Madsen, P. S. Maybeck, Vivi Petersen, W. A. Shurcliff   +5 more
core   +1 more source

Uncovering the Role of Intrinsic Magnetic Order in Oxygen Evolution Reaction Activity With Operando Spectroscopy

Advanced Energy Materials, EarlyView.
Operando magnetic spectroscopy provides insight into how intrinsic magnetic order modulates the oxygen evolution reaction on La0.67Sr${\rm La}_{0.67}{\rm Sr}$0.33MnO$_{0.33}{\rm MnO}$3$_3$ thin films. Temperature‐dependent operando FMR and ambient‐pressure XMCD suggest a correlation between activity and the emergence of ferromagnetic regions near and ...
Emma van der Minne, Silvia Mauri, Anatoliy A. Vereshchagin, Vadim Ratovskii, Ellen M. Kiens, Hemanita Sharma, Jan Behrends, Piero Torelli, Gertjan Koster, Christoph Baeumer   +9 more
wiley   +1 more source

Coronal Magnetometry

, 2017
Magnetism defines the complex and dynamic solar corona. It determines the magnetic loop structure that dominates images of the corona, and stores the energy necessary to drive coronal eruptive phenomena and flare explosions. At great heights the corona transitions into the ever-outflowing solar wind, whose speed and three-dimensional morphology are ...
Laurel A. Rachmeler, Sarah E. Gibson, Stephen M. White   +2 more
openaire   +3 more sources

Mapping of Spin‐Wave Transport in Thulium Iron Garnet Thin Films Using Diamond Quantum Microscopy

Advanced Electronic Materials
Spin waves, collective dynamic magnetic excitations, offer crucial insights into magnetic material properties. Rare‐earth iron garnets offer an ideal spin‐wave (SW) platform with long propagation length, short wavelength, gigahertz frequency, and ...
Rupak Timalsina, Haohan Wang, Bharat Giri, Adam Erickson, Xiaoshan Xu, Abdelghani Laraoui   +5 more
doaj   +1 more source

Principles and techniques of the quantum diamond microscope

Nanophotonics, 2019
We provide an overview of the experimental techniques, measurement modalities, and diverse applications of the quantum diamond microscope (QDM). The QDM employs a dense layer of fluorescent nitrogen-vacancy (NV) color centers near the surface of a ...
Levine Edlyn V., Turner Matthew J., Kehayias Pauli, Hart Connor A., Langellier Nicholas, Trubko Raisa, Glenn David R., Fu Roger R., Walsworth Ronald L.   +8 more
doaj   +1 more source