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We investigate theoretically and experimentally the electron paramagnetic resonance (EPR) spectra of bismuth doped silicon (Si:Bi) at intermediate magnetic fields, $B \approx 0.05 -0.6$ T. We identify a previously unexplored EPR regime of…

Quantum Physics · Physics 2010-08-27 M. H. Mohammady , G. W. Morley , T. S. Monteiro

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

The development of a new era of quantum devices requires an understanding of how paramagnetic dopants or impurity spins behave in crystal hosts. Here, we describe a new spectroscopic technique which uses traditional Electron Spin Resonance…

We propose a method to compute the entanglement entropy (EE) using the tensor renormalization group (TRG) method. The reduced density matrix of a $d$-dimensional quantum system is represented as a $(d+1)$-dimensional tensor network. We…

High Energy Physics - Lattice · Physics 2025-09-03 Takahiro Hayazaki , Daisuke Kadoh , Shinji Takeda , Gota Tanaka

In previous papers we have presented a calculation describing electrodisintegration of the deuteron at GeV energies. The model is fully relativistic and incorporates full spin dependence of the final state interactions (FSI), which were…

Nuclear Theory · Physics 2013-05-29 William P. Ford , Sabine Jeschonnek , J. W. Van Orden

Integrated magnetic sensors that allow simultaneous EPR and magnetization measurements have been developed to study single molecule magnets. A high frequency microstrip resonator has been integrated with a micro-Hall effect magnetometer.…

Materials Science · Physics 2009-11-11 G. de Loubens , G. D. Chaves , A. D. Kent , C. Ramsey , E. del Barco , C. Beedle , D. N. Hendrickson

In dynamic nuclear polarization (DNP) experiments, the compound is driven out-of-equilibrium by microwave (MW) irradiation of the radical electron spins. Their stationary state has been recently probed via electron double resonance (ELDOR)…

Strongly Correlated Electrons · Physics 2017-02-28 Filippo Caracciolo , Marta Filibian , Pietro Carretta , Alberto Rosso , Andrea De Luca

We present the zero-temperature phase diagram of the one-dimensional t2g-orbital Hubbard model, obtained using the density-matrix renormalization group and Lanczos techniques. Emphasis is given to the case for the electron density n=5…

Strongly Correlated Electrons · Physics 2009-11-11 Jose Xavier , Hiroaki Onishi , Takashi Hotta , Elbio Dagotto

Edge/surface states often appear in a topologically nontrivial phase, when the system has a boundary. The edge state of a one-dimensional topological insulator is one of the simplest examples. Electron Spin Resonance (ESR) is an ideal probe…

Strongly Correlated Electrons · Physics 2017-11-21 Yuan Yao , Masahiro Sato , Tetsuya Nakamura , Nobuo Furukawa , Masaki Oshikawa

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

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

We present three designs for planar superconducting microwave resonators for electron spin resonance (ESR) experiments. We implement finite element simulations to calculate the resonance frequency and quality factors as well as the…

Mesoscale and Nanoscale Physics · Physics 2019-08-21 Stefan Weichselbaumer , Petio Natzkin , Christoph W. Zollitsch , Mathias Weiler , Rudolf Gross , Hans Huebl

We report Electron Paramagnetic Resonance measurements on single crystalline and powder samples of Nd_0.5Ca_0.5MnO_3 across the charge-ordering transition at T_co=240 K down to the antiferromagnetic ordering transition at T_N = 140 K. The…

Strongly Correlated Electrons · Physics 2021-05-26 Janhavi P. Joshi , Rajeev Gupta , A. K. Sood , S. V. Bhat , A. R. Raju , C. N. R. Rao

Accurate prediction of molecular g-tensors for open-shell systems requires a balanced treatment of multireference electron correlation and relativistic spin-orbit coupling. Here, we develop and benchmark spin-orbit quasidegenerate…

Chemical Physics · Physics 2026-04-14 Nicholas Yiching Chiang , Rajat Majumder , Alexander Yu. Sokolov

The Electron Paramagnetic Spectroscopy (EPR) is the most direct and powerful method for the detection and identification of free radicals and other species with unpaired electrons. Statistics disorders are a common gynaecological disorder…

This article compares the tensor method density matrix renormalization group (DMRG) with two neural network based methods -namely FermiNet and PauliNet) for determining the ground state wavefunction of the many-body electronic…

Optimization and Control · Mathematics 2024-12-05 Mathias Dus , Geneviève Dusson , Virginie Ehrlacher , Clément Guillot , Joel Pascal Soffo Wambo

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

Electrically detected electron spin resonance (ESR) is used to study the hyperfine interaction of the two-dimensional electrons and the nuclei of the host lattice in a GaAs/AlGaAs heterostructure. Under the microwave and radio- frequency…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Chris Hillman , H. W. Jiang

The closed-form Br\"ukner $G$ matrix for nuclear matter is computed in the $^1S_0$ channel of EFT($\not\!\!\pi$) and renormalized in nonperturbative context. The nuclear medium environment yields additional constraints that are consistent…

Nuclear Theory · Physics 2021-06-04 Ting-Wei Pan , Ji-Feng Yang

Energy density functionals (EDFs) have been used extensively with great success to calculate properties of nuclei and to predict the equation of state (EOS) of dense nuclear matter. Besides non-relativistic EDFs, mostly of the Skyrme or…

Nuclear Theory · Physics 2024-10-29 Stefan Typel , Shalom Shlomo