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Related papers: Electron paramagnetic resonance study of ErSc2NC80

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Recently it was proposed that the orbital ordering of $\pi_{x,y}^*$ molecular orbitals in the superoxide CsO$_2$ compound leads to the formation of spin-1/2 chains below the structural phase transition occuring at $T_{\rm{s1}}=61$~K on…

Strongly Correlated Electrons · Physics 2015-08-05 T. Knaflic , M. Klanjsek , A. Sans , P. Adler , M. Jansen , C. Felser , D. Arcon

We analyze the effects of different coupling anisotropies in spin-1/2 ladder on the Electron Spin Resonance (ESR) shift. Combining a perturbative expression in the anisotropies with temperature dependent Density Matrix Renormalization Group…

Strongly Correlated Electrons · Physics 2015-05-30 Shunsuke C. Furuya , Pierre Bouillot , Corinna Kollath , Masaki Oshikawa , Thierry Giamarchi

We present general expressions for the magnetic transition rates in beam Electron Paramagnetic Resonance (EPR) experiments of anisotropic spin systems in the solid state. The expressions apply to general spin centers and arbitrary…

Mesoscale and Nanoscale Physics · Physics 2015-01-14 Joscha Nehrkorn , Alexander Schnegg , Karsten Holldack , Stefan Stoll

Electron paramagnetic resonance spectroscopy (EPR) is among the most important analytical tools in physics, chemistry, and biology. The emergence of nitrogen-vacancy (NV) centers in diamond, serving as an atomic-sized magnetometer, has…

Quantum Physics · Physics 2020-06-01 Fei Kong , Pengju Zhao , Pei Yu , Zhuoyang Qin , Zhehua Huang , Zhecheng Wang , Mengqi Wang , Fazhan Shi , Jiangfeng Du

The fourfold degeneracy of the boron acceptor ground state in silicon, which is easily lifted by any symmetry breaking perturbation, allows for a strong inhomogeneous broadening of the boron-related electron paramagnetic resonance (EPR)…

Materials Science · Physics 2015-03-14 A. R. Stegner , H. Tezuka , T. Andlauer , M. Stutzmann , M. L. W. Thewalt , M. S. Brandt , K. M. Itoh

Here, we study the paramagnetic ions behavior in presence of a strong microwave electromagnetic field sustained inside a cryogenic sapphire whispering gallery mode resonator. The high frequency measurement resolution that can be now…

Instrumentation and Detectors · Physics 2015-06-19 Vincent Giordano , Serge Grop , Pierre-Yves Bourgeois , Yann Kersalé , Enrico Rubiola

Using electron-spin-resonance (ESR) technique we investigate the magnetic structure of CuCrO2, quasi-two-dimensional antiferromagnet with weakly distorted triangular lattice. Resonance frequencies and the excitation conditions in CuCrO2 at…

Strongly Correlated Electrons · Physics 2014-01-31 A. M. Vasiliev , L. A. Prozorova , L. E. Svistov , V. Tsurkan , V. Dziom , A. Shuvaev , Anna Pimenov , A. Pimenov

In this paper we propose that electron spin resonance (ESR) measurements enable us to detect the long-range spin nematic order. We show that the frequency of the paramagnetic resonance peak in the ESR spectrum is shifted by the…

Strongly Correlated Electrons · Physics 2018-03-22 Shunsuke C. Furuya , Tsutomu Momoi

This paper presents an analysis of electron paramagnetic resonance parameters, i.e., g factor, linewidth, and intensity on powder samples of La1-xCaxMnO3 at the commensurate carrier concentrations of x = N/8 (N = 1, 2, 3, 4, 5, 6, and 7).…

Strongly Correlated Electrons · Physics 2009-11-11 Y. Liu , S. L. Wan , X. G. Li

Paramagnetic magnetic resonance, a powerful technique for characterizing and identifying chemical targets, is increasingly used for imaging; however, low spin polarization at room temperature and moderate magnetic fields poses challenges…

Mesoscale and Nanoscale Physics · Physics 2019-09-04 C. M. Purser , V. P. Bhallamudi , C. S. Wolfe , H. Yusuf , B. A. McCullian , C. Jayaprakash , M. E. Flatté , P. C. Hammel

We report on terahertz (THz) electron paramagnetic resonance generalized spectroscopic ellipsometry (THz-EPR-GSE). Measurements of the field and frequency dependencies of the magnetic response due to the spin transitions associated with the…

We study theoretically Electron Paramagentic Resonance (EPR) linewidths for single crystals of the molecular magnets Fe$_8$ and Mn$_{12}$ as functions of energy eigenstates $M_s$, frequency, and temperature when a magnetic field along the…

Condensed Matter · Physics 2009-11-07 Kyungwha Park , M. A. Novotny , N. S. Dalal , S. Hill , P. A. Rikvold

Nd_0.67Sr_0.33MnO_3 nanoparticles with the grain size of about 30 nm are prepared by sol-gel method.These nanopowders are annealed at four different temperatures viz. 800 oC, 900 oC, 1000 oC and 1100 oC to study the effect of particle size…

Strongly Correlated Electrons · Physics 2007-05-23 S. S. Rao , Subhasis Sarangi , G. Venkataiah , Venu Gopala Reddy , S. V. Bhat

Multi-high-frequency electron paramagnetic resonance(EPR) spectrum for a supermolecular dimer $[ Mn_4]_2$ of single-molecule magnets recently reported [S. Hill, R. S. Edwards, N. Aliaga-Alcalde and G. Christou(HEAC), Science 302, 1015…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Xu Chang-Tan , Liang J-Q

We present a new experimental approach to investigate the magnetic properties of the anisotropic heavy-fermion system YbRh$_2$Si$_2$ as a function of crystallographic orientation. Angle-dependent electron spin resonance (ESR) measurements…

We report an experimetal study by Electron Paramagnetic Resonance (EPR) of E'-delta point defect induced by gamma ray irradiation in amorphous SiO2. We obtained an estimetion of the intensity of the 10 mT doublet characterizing the EPR…

Other Condensed Matter · Physics 2009-11-11 Gianpiero Buscarino , Simonpietro Agnello , Franco Mario Gelardi

The local environment of Gd3+ (4f7 S=7/2) ions in single crystals of Ca1-xGdxB6 (0.0001 < x < 0.01) is studied by means of Electron Spin Resonance (ESR). The spectra for low concentration samples (x < 0.001) show a split spectrum due to…

BaCuSi$_2$O$_6$, a $S=1/2$ quantum antiferromagnet with a double-layer structure of Cu$^{2+}$ ions in a distorted planar-rectangular coordination and with a dimerized spin singlet ground state, is studied by means of the electron…

Other Condensed Matter · Physics 2019-09-20 S. A. Zvyagin , J. Wosnitza , J. Krzystek , R. Stern , M. Jaime , Y. Sasago , K. Uchinokura

We demonstrate electron spin polarization detection and electron paramagnetic resonance (EPR) spectroscopy using a direct current superconducting quantum interference device (dc-SQUID) magnetometer. Our target electron spin ensemble is…

Mesoscale and Nanoscale Physics · Physics 2024-06-24 Hiraku Toida , Yuichiro Matsuzaki , Kosuke Kakuyanagi , Xiaobo Zhu , William J. Munro , Kae Nemoto , Hiroshi Yamaguchi , Shiro Saito

We report Electron Spin Resonance of the itinerant ferromagnets LaCrGe3, CeCrGe3, and PrCrGe3. These compounds show well defined and very similar spectra of itinerant Cr 3d spins in the paramagnetic temperature region. Upon cooling and…

Strongly Correlated Electrons · Physics 2021-09-21 Jörg Sichelschmidt , Thomas Gruner , Debarchan Das , Zakir Hossain