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Related papers: A view from inside iron-based superconductors

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Pressure, together with temperature, electric and magnetic fields, alters the system and allows to investigate the fundamental properties of the matter. Under applied pressure the interatomic distances shrink, which modify interactions…

Instrumentation and Detectors · Physics 2023-05-19 Rustem Khasanov

This work describes the development of a state-of-the-art muon spectrometer for the ISIS pulsed muon source. Conceived as a major upgrade of the highly successful EMU instrument, emphasis has been placed on making effective use of the…

The formation of a Bose condensate of magnons in a perpendicularly magnetized film of yttrium iron garnet under radio-frequency pumping in a strip line is studied experimentally. The characteristics of nonlinear magnetic resonance and the…

Mesoscale and Nanoscale Physics · Physics 2020-12-30 P. M. Vetoshko , G. A. Knyazev , A. N. Kuzmichev , A. A. Holin , V. I. Belotelov , Yu. M. Bunkov

Muon spin rotation ($\mu$SR) measurements of internal magnetic field shifts, known as the muon Knight shift, is used for determining pairing symmetries in superconductors. While this technique has been especially effective for…

Tunneling spectroscopy played a central role in the experimental verification of the microscopic theory of superconductivity in the classical superconductors. Initial attempts to apply the same approach to high-temperature superconductors…

Superconductivity · Physics 2009-09-29 Oystein Fischer , Martin Kugler , Ivan Maggio-Aprile , Christophe Berthod , Christoph Renner

Atmospheric muons are important probes for studying primary cosmic rays and extensive air showers. Additionally, they constitute a significant background for many underground and deep-sea neutrino experiments, such as TRopIcal DEep-sea…

We study the spin fluctuations of pure and Zn-substituted high temperature superconductors (HTS) using the muon spin relaxation (muSR) technique. Superconductivity is found to coexist with low frequency spin fluctuations over a large region…

Superconductivity · Physics 2009-11-07 C. Panagopoulos , J. L. Tallon , B. D. Rainford , J. R. Cooper , C. A Scott , T. Xiang

We performed depth-dependent low-energy muon spin spectroscopy ($\mu$SR) studies on three palladium 100 nm thin films, both undoped and doped with 170 ppm of iron. Muons implanted in the surface and substrate interface region probe an…

Mesoscale and Nanoscale Physics · Physics 2022-09-07 Gesa Welker , Martin de Wit , Tjerk H. Oosterkamp , John A. Mydosh , Andreas Suter , Thomas Prokscha , Lucia Bossoni

The Dirac semimetal PdTe${}_2$ becomes superconducting at a temperature $T_{c}=1.6$~K. Thermodynamic and muon spin rotation experiments support type-I superconductivity, which is unusual for a binary compound. A key property of a type-I…

Superconductivity · Physics 2021-03-24 P. Garcia-Campos , Y. K. Huang , A. de Visser , K. Hasselbach

We present the results of muon-spin relaxation ($\mu^{+}$SR) measurements of the van der Waals magnet NiI$_2$, which probe magnetic phase transitions at $T_{\mathrm{N1}}=73$~K and $T_{\mathrm{N2}}=60$~K. Supporting density functional theory…

Muon spin rotation (muSR) spectra recorded for manganese silicide MnSi and interpreted in terms of a quantitative analysis constrained by symmetry arguments were recently published. The magnetic structures of MnSi in zero-field at low…

Strongly Correlated Electrons · Physics 2018-10-03 P. Dalmas de Reotier , A. Yaouanc , A. Amato , A. Maisuradze , D. Andreica , B. Roessli , T. Goko , R. Scheuermann , G. Lapertot

We used high-resolution scanning tunneling spectroscopy to study the hole-doped iron pnictide superconductor Ba$_{0.6}$K$_{0.4}$Fe$_{2}$As$_{2}$ ($T_c=38$ K). Features of a bosonic excitation (mode) are observed in the measured…

The blast furnace (BF) is the fundamental tool used in the iron manufacture. Due to the difficulty of accessing direct measurements of the inner phenomena, we determined the density distribution of its internal volume in order to improve…

Superconducting high-entropy alloys (HEAs) present a unique platform for studying the effect of disorder, composition, and crystal structure on superconducting pairing. In this study, we present a comprehensive bulk and microscopic…

Superconductivity · Physics 2025-04-01 Sonika Jangid , Pavan Kumar Meena , Niraj P. Atale , Rhea Stewart , Adrian D. Hillier , R. P. Singh

We use a scanning superconducting quantum interference device (SQUID) to image the magnetic flux produced by a superconducting device designed for quantum computing. The nanometer-scale SQUID-on-tip probe reveals the flow of superconducting…

Superconductivity · Physics 2022-09-16 E. Marchiori , L. Ceccarelli , N. Rossi , G. Romagnoli , J. Herrmann , J. -C. Besse , S. Krinner , A. Wallraff , M. Poggio

We determine theoretically the effect of spin-orbit coupling on the magnetic excitation spectrum of itinerant multi-orbital systems, with specific application to iron-based superconductors. Our microscopic model includes a realistic…

Superconductivity · Physics 2018-07-24 Daniel D. Scherer , Brian M. Andersen

The Compact Muon Solenoid (CMS) is a general purpose detector, designed to run at the highest luminosity at the CERN Large Hadron Collider (LHC). Its distinctive features include a 4 T superconducting solenoid with 6-m-diameter by…

Instrumentation and Detectors · Physics 2016-06-02 V. I. Klyukhin , N. Amapane , A. Ball , B. Curé , A. Gaddi , H. Gerwig , M. Mulders , V. Calvelli , A. Hervé , R. Loveless

The pressure dependence of the magnetic penetration depth in polycrystalline samples of YBa2Cu3Ox with different oxygen concentrations x = 6.45, 6.6, 6.8, and 6.98 was studied by muon spin rotation (muSR). The pressure dependence of the…

Superconductivity · Physics 2015-05-28 A. Maisuradze , A. Shengelaya , A. Amato , E. Pomjakushina , H. Keller

Studying the polarization and spectral distortion of the Cosmic Microwave Background (CMB) in tandem with intensity fluctuations of the Cosmic Infrared Background (CIB) allows us to verify our assumptions on cosmic inflation and investigate…

We study baryon spectroscopy including the effects of pseudoscalar meson exchange and one gluon exchange potentials between quarks, governed by $\alpha_s$. The non-perturbative, hyperspherical method calculations show that one can obtain a…

Nuclear Theory · Physics 2008-11-26 Z. Dziembowski , M. Fabre de la Ripelle , Gerald A. Miller