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In this paper, we present the spin-phonon coupling and dielectric response of nano-crystalline Pr$_2$CoMnO$_6$ employing Raman and dielectric spectroscopic study. Pr$_2$CoMnO$_6$ is a manganite compound , it undergoes a paramagnetic to…

Strongly Correlated Electrons · Physics 2021-04-13 Ilyas Noor Bhatti , Imtiaz Noor Bhatti

Investigation of the electronic and spin structure in double perovskites is recently attracting significant attention, mainly driven by their unique multifunctional properties and other underlying charge and spin dynamics. Herein, using…

Materials Science · Physics 2023-07-18 R. Hissariya , R. Sharma , S. K. Mishra

The quest to enhance the sensitivity of electron spin resonance (ESR) is an ongoing challenge. One potential strategy involves increasing the frequency, for instance, moving from Q-band (approximately 35 GHz) to W-band (approximately 94…

Chemical Physics · Physics 2024-11-22 Moamen Jbara , Oleg Zgadzai , Wolfgang Harneit , Aharon Blank

Angle-resolved photoemission (PE) was used to characterize the spin-density wave (SDW) state in thin films of Cr grown on W(110). The PE data were analysed using results of local spin density approximation layer-Korringa-Kohn-Rostoker…

Materials Science · Physics 2009-11-10 F. Schiller , D. V. Vyalikh , V. D. P. Servedio , S. L. Molodtsov

Experiments that pursue detection of signals from the Epoch of Reionization (EoR) are relying on spectral smoothness of source spectra at low frequencies. This article empirically explores the effect of foreground spectra on EoR experiments…

Contrary to the well known spin qubits, rare-earth qubits are characterized by a strong influence of crystal field due to large spin-orbit coupling. At low temperature and in the presence of resonance microwaves, it is the magnetic moment…

Strongly Correlated Electrons · Physics 2009-11-26 Sylvain Bertaina , J. H. Shim , S. Gambarelli , B. Z. Malkin , B. Barbara

We present an extensive investigation (magnetic, electric and thermal measurements and X-ray absorption spectroscopy) of the Pr0.5Ca0.5CoO3 and (Pr1-yYy)0.7Ca0.3CoO3 (y=0.0625-0.15) perovskites, in which a peculiar metal-insulator (M-I)…

Materials Science · Physics 2015-06-12 J. Hejtmanek , Z. Jirak , O. Kaman , K. Knizek , E. Santava , K. Nitta , T. Naito , H. Fujishiro

We have studied the low-temperature behavior of the magnetization and the specific heat of the bilayered perovskite system $% La_{2-2x}Sr_{1+2x}Mn_{2}O_{7}$, for $0.30\leq x\leq 0.50$. Our analysis reveals that below 30 K the temperature…

Materials Science · Physics 2009-11-07 H. Martinho , C. Rettori , D. L. Huber , S. B. Oseroff , J. F. Mitchell

Electron Spin Resonance (ESR) describes a suite of techniques for characterising electronic systems, with applications in physics, materials science, chemistry, and biology. However, the requirement for large electron spin ensembles in…

Quantum Physics · Physics 2015-03-04 L. T. Hall , P. Kehayias , D. A. Simpson , A. Jarmola , A. Stacey , D. Budker , L. C. L. Hollenberg

The Eu{+2} spins S = 7/2 in the metallic compound EuCo{2-y}As2 order into an antiferromagnetic helical structure below a Neel temperature TN = 40 to 45 K. The effective magnetic moment mu_eff of the Eu spins in the paramagnetic state from…

Strongly Correlated Electrons · Physics 2018-12-18 N. S. Sangeetha , S. D. Cady , D. C. Johnston

The field of research on magnetic van der Waals compounds -- a special subclass of quasi-two-dimensional materials -- is currently rapidly expanding due to the relevance of these compounds to fundamental research where they serve as a…

Strongly Correlated Electrons · Physics 2024-07-25 Vladislav Kataev , Bernd Büchner , Alexey Alfonsov

This work reports on the temperature dependence of the electron spin resonance (ESR) of Gd$^{3+}$-doped SmB$_{6}$ single crystals at X- and Q-band microwave frequencies in different crystallographic directions. We found an anomalous…

Strongly Correlated Electrons · Physics 2022-05-25 M. Carlone , J. C. Souza , J. Sichelschmidt , P. F. S. Rosa , R. R. Urbano , P. G. Pagliuso , Z. Fisk , P. A. Venegas , P. Schlottmann , C. Rettori

We describe a fully broadband approach for electron spin resonance (ESR) experiments where it is possible to not only tune the magnetic field but also the frequency continuously over wide ranges. Here a metallic coplanar transmission line…

Brillouin scattering studies have been carried out on high quality single crystals of Fe$_3$O$_4$ with [100] and [110] faces in the temperature range of 300 to 30 K. The room temperature spectrum shows a surface Rayleigh wave (SRW) mode at…

Materials Science · Physics 2013-05-29 Md. Motin Seikh , Chandrabhas Narayana , P. A. Metcalf , J. M. Honig , A. K. Sood

The temperature dependence of the electron spin-lattice relaxation SLR was studied in Er0.01Y0.99Ba2Cu3Ox compounds. The data derived from the electron spin resonance ESR and SLR measurements were compared to those from inelastic neutron…

Superconductivity · Physics 2009-11-11 V. A. Ivanshin , M. R. Gafurov , I. N. Kurkin , S. P. Kurzin , A. Shengelaya , H. Keller , M. Gutmann

We study an ensemble of strongly coupled electrons under continuous microwave irradiation interacting with a dissipative environment, a problem of relevance to the creation of highly polarized non-equilibrium states in nuclear magnetic…

Statistical Mechanics · Physics 2017-10-18 Alexander Karabanov , Dominic C. Rose , Walter Köckenberger , Juan P. Garrahan , Igor Lesanovsky

Combining electron paramagnetic resonance (EPR) with scanning tunneling microscopy (STM) enables detailed insight into the interactions and magnetic properties of single atoms on surfaces. A requirement for EPR-STM is the efficient coupling…

Mesoscale and Nanoscale Physics · Physics 2020-01-15 T. S. Seifert , S. Kovarik , C. Nistor , L. Persichetti , S. Stepanow , P. Gambardella

Coherence times of electron spins bound to phosphorus donors have been measured, using a standard Hahn echo technique, to be up to 20 ms in isotopically pure silicon with [P]$ = 10^{14}$ cm$^{-3}$ and at temperatures $\leq 4 $K. Although…

Mesoscale and Nanoscale Physics · Physics 2020-12-29 Philipp Ross , Brendon C. Rose , Cheuk C. Lo , Mike L. W. Thewalt , Alexei M. Tyryshkin , Stephen A. Lyon , John J. L. Morton

Echo-based spectroscopy of the superhyperfine interaction of an electronic spin with nuclear spins in its surroundings enables detailed insights into the microscopic magnetic environment of spins in solids. Still, it is an outstanding…

A charge density wave (CDW) is a phase of matter characterized by a periodic modulation of the valence electron density accompanied by a distortion of the lattice structure. The microscopic details of CDW formation are closely tied to the…

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