We report the experimental demonstration of an abnormal, opposite anti-crossing effect in a photon-magnon-coupled system that consists Yttrium Iron Garnet film and inverted pattern split-ring resonator structure (noted as ISRR) planar geometry. It is found normal shape dispersion typically observed photon-magnon coupling changed to its just by changing position/orientation ISRR's split gap with respect microstrip line axis along which ac microwave currents are applied. Characteristic...

By using the stripline Microwave Vector–Network Analyser Ferromagnetic Resonance and Time Domain spectroscopy techniques, we study a strong coupling regime of magnons to microwave photons in planar geometry lithographically formed split-ring resonator (SRR) loaded by single-crystal epitaxial yttrium–iron–garnet (YIG) film. Strong anti-crossing photon modes SRR magnon YIG film is observed applied-magnetic-field resolved measurements. The strength extracted from experimental data reaches 9% at...

We experimentally demonstrate strongly enhanced coupling between excited magnons in an Yttrium Iron Garnet (YIG) film and microwave photons inverted pattern of split-ring resonator (noted as ISRR). The anti-crossing effects the ISRR's photon mode YIG's magnon modes were found from |S21|-versus-frequency measurements for different strengths directions externally applied magnetic fields. spin-number-normalized strength (i.e. single spin-photon coupling) [Formula: see text] was determined to...

Yttrium iron garnet (YIG:Y3Fe5O12) thin films were grown on (111) gadolinium gallium (Gd3Ga5O12, GGG) substrates using pulsed-laser deposition under several different and annealing conditions. X-ray diffraction measurements revealed that the crystallographical orientation of YIG is pseudomorphic to same as GGG substrate, with a slight rhombohedral distortion along surface normal. Furthermore, reciprocal space mapping evidenced in-situ annealed during film growth are compressive strain,...

Aluminium-doped magnesium ferrite (MAFO) has garnered significant interest due to its recently observed low microwave loss properties, making it invaluable for applications at high-frequency operations, including fields like spintronics and magnonics. This study delves into the optical dielectric properties of MgAl0.5Fe1.5O4 synthesized via a conventional solid-state method followed by sintering 1350 °C 6 hrs. The X-ray diffraction analysis confirmed formation pure, single-phase MAFO spinel...

Enhancement in high-coercivity ferromagnetism of hydrothermally synthesized single-crystalline Gd-doped BiFeO₃ nanowires.

This study presents the coherent and dissipative coupling realized in hybrid photonic resonators that have been achieved via constructive destructive interference of resonator fields with radiation a common transmission line fed microwave photons. In regime we found coexistence peculiar phenomenon bound state continuum (BIC) near crossing frequency uncoupled by satisfying Friedrich-Wintgen BICs condition. Again just rotating one samples dynamic adjustment parameter induced transparency...

We present a novel approach to observing the Purcell effect in photon-magnon coupled (PMC) hybrid system consisting of yttrium iron garnet (YIG) thin film and hexagonal ring resonator (HRR) arranged planar geometry. This has been designed simulated using commercial electromagnetic full-wave simulator CST Microwave Studio for various values damping constant (alpha) YIG while keeping HRR properties constant. Our results reveal that as magnon increases, anti-crossing behavior between photon...

Ferromagnetic resonance (FMR) and magnetic studies have been carried out on polycrystalline YIG films deposited by pulsed laser deposition (at T <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">S</sub> :750 °C, O xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> :5×10 <sup xmlns:xlink="http://www.w3.org/1999/xlink">-2</sup> mbar) using a range of energies (240 to 350 mJ). The were ex situ annealed (T...

Y <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Fe xmlns:xlink="http://www.w3.org/1999/xlink">5</sub> O xmlns:xlink="http://www.w3.org/1999/xlink">12</sub> thin films with thickness 10 nm ≤ t 1440 were grown on Gd Ga (111) substrates by pulsed laser deposition. The X-ray diffraction experiments confirmed the are pure yttrium iron garnet (YIG) phase preferred orientation. magnetic and microwave properties studied as a function of film...

We studied the broadband characteristics of photon–magnon coupling (PMC) between a yuttrium iron garnet (YIG) film and arrays inverted split-ring resonators (ISRRs). To achieve interaction available in wide frequency range, we optimized geometries dimensions single ISRRs their array structure by numerical simulations order to manipulate resonance frequencies, bandwidths, signal gains. With those optimal arrays, then experimentally observed multiples anti-crossing regions YIG's magnon mode...

Magnetic nanostructures have emerged as the novel class of materials being used in a variety applications such ultra-high-density magnetic recording media, drug delivery, resonance imaging (MRI), sensing, hyperthermia, water treatments, and catalysts.Recent advances multifunctional nanostructured design, synthesis, characterization techniques led to realization various exhibiting several physical chemical properties that are unique interesting.Magnetic with varied geometries complex manifest...

Yttrium-iron-garnet (YIG) thin films were grown on quartz substrates using pulsed laser deposition (PLD) while varying oxygen gas pressure (P <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">O2</sub> ) in the range of 6.5 × 10 <sup xmlns:xlink="http://www.w3.org/1999/xlink">-3</sup> mbar to 1 mbar. YIG phase formation and magnetic properties strongly dependent P . The film at 1.7 xmlns:xlink="http://www.w3.org/1999/xlink">-1</sup> shows best (4π...

We explored the distinctive behavior of coherent and dissipative photon-magnon coupling (PMC) in dual hybrid resonators, each incorporating an Inverted Split-Ring Resonator (ISRR) paired with a Yttrium Iron Garnet (YIG) film, positioned close proximity but varying relative split-gap orientations. These orientations led to notable shifts dispersion spectra, characterized by level repulsion attraction, signaling coupling, respectively, single ISRR/YIG hybrids at certain Through analytical...

Magnetic garnets, a diverse group of magnetic insulating materials, have been the subject extensive research for decades, owing to their versatility and potential wide range applications. In this study, we synthesized Bismuth-Substituted Yttrium Iron Garnet (BiY2Fe5O12: BiYIG) using solid-state reaction method explore its structural, optical, dielectric characteristics. X-ray diffraction analysis revealed attainment pure cubic garnet phase in BiYIG, with lattice parameter 12.444 Å. Using...

The growth- and frequency-dependent microwave studies on ~250 nm thick Y <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Fe xmlns:xlink="http://www.w3.org/1999/xlink">5</sub> O xmlns:xlink="http://www.w3.org/1999/xlink">12</sub> [yttrium iron garnet (YIG)] films deposited Gd Ga (111) (gadolinium gallium garnet) substrates by RF magnetron sputtering has been reported. After the deposition, thin were ex-situ annealed in air at 700°C for...