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We used electron spin resonance (ESR) combined with scanning tunneling microscopy (STM) to measure hydrogenated Ti (spin-1/2) atoms at low-symmetry binding sites on MgO in vector magnetic fields. We found strongly anisotropic g-values in…

The interplay between lattice distortions, magnetism, and spin-orbit coupling in 5d transition-metal halides offers a fertile platform for exploring correlated spin-lattice dynamics. Here, we investigate the impact of structural symmetry…

Strongly Correlated Electrons · Physics 2026-01-30 S. Bhatia , A. Ahmad , M. Zeeshan , S. Kaur , J. K. Anand , A. Goswami , B. K. Mani , K. Sen

The electron spin resonance spectrum of a quasi 1D S=1/2 antiferromagnet K2CuSO4Br2 was found to demonstrate an energy gap and a doublet of resonance lines in a wide temperature range between the Curie--Weiss and Ne\`{e}l temperatures. This…

Strongly Correlated Electrons · Physics 2015-10-28 A. I. Smirnov , T. A. Soldatov , K. Yu. Povarov , M. Hälg , W. E. A. Lorenz , A. Zheludev

Nuclear Magnetic Resonance (NMR) is a powerful local quantum probe of the electronic structure of materials, but in the absence of reliable theory the interpretation of the NMR data can be challenging. This is true in particular for the…

Superconductivity · Physics 2021-12-21 Marija Avramovska , Jakob Nachtigal , Jürgen Haase

Electron spin resonance and magnetization data in magnetic fields up to 55 T of a novel multicenter paramagnetic molecular complex [L_2Ni_4(N_3)(O_2C Ada)_4](Cl O_4) are reported. In this compound, four Ni centers each having a spin S = 1…

In this Letter, we report the results of ESR measurements in high magnetic fields up to about 53 T on single crystals of NiGa2S4 to clarify the spin dynamics in more detail. We have found that the dynamics of Z2 vortices affects the…

Materials Science · Physics 2009-11-13 H. Yamaguchi , S. Kimura , M. Hagiwara , Y. Nambu , S. Nakatsuji , Y. Maeno , K. Kindo

The angular and temperature dependences of single crystal ESR spectra at X-band frequency of quasi 1D spin 1/2 antiferromagnetic zigzag chain system {\beta}-TeVO4 are reported. Two resonance components in the ESR spectrum have been…

Strongly Correlated Electrons · Physics 2013-11-25 Yu. Savina , A. Bludov , V. Pashchenko , S. Gnatchenko , A. Stepanov , P. Lemmens

We develop a theory of spin noise spectroscopy of itinerant, noninteracting, spin-carrying fermions in different regimes of temperature and disorder. We use kinetic equations for the density matrix in spin variables. We find a general…

Statistical Mechanics · Physics 2015-05-14 Simon Kos , Alexander V. Balatsky , Peter B. Littlewood , Darryl L. Smith

Spin ice systems represent a prime example of constrained spin systems and exhibit rich low-energy physics. In this study, we explore how introducing a tunable anisotropic spin coupling to the conventional Ising spin ice Hamiltonian on the…

Strongly Correlated Electrons · Physics 2025-10-28 Gloria Isbrandt , Frank Pollmann , Michael Knap

The temperature dependence of the electron-spin resonance linewidth in La0.95Sr0.05MnO3 has been determined and analyzed in the paramagnetic regime across the orbital ordering transition. From the temperature dependence and the anisotropy…

Strongly Correlated Electrons · Physics 2009-11-10 J. Deisenhofer , B. I. Kochelaev , E. Shilova , A. M. Balbashov , A. Loidl , H. -A. Krug von Nidda

We present combined experimental and theoretical investigation of the low-frequency ESR dynamics in the ordered phases of magnetic mineral linarite. This material consists of weakly coupled spin-1/2 chains of copper ions with frustrated…

Strongly Correlated Electrons · Physics 2019-11-19 S. K. Gotovko , L. E. Svistov , A. M. Kuzmenko , A. Pimenov , M. E. Zhitomirsky

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

We report our investigation of the electronic and magnetic excitations of Sr$_3$NiIrO$_6$ by resonant inelastic x-ray scattering at the Ir L$_3$ edge. The intra-$t_{2g}$ electronic transitions are analyzed using an atomic model, including…

Strongly Correlated Electrons · Physics 2016-06-08 E. Lefrançois , A. -M. Pradipto , M. Moretti Sala , L. C. Chapon , V. Simonet , S. Picozzi , P. Lejay , S. Petit , R. Ballou

We report a comprehensive high-field/high-frequency electron spin resonance (ESR) study on single crystals of the van der Waals magnet CrCl$_3$. This material, although being known for quite a while, has received recent significant…

Materials Science · Physics 2020-06-09 J. Zeisner , K. Mehlawat , A. Alfonsov , M. Roslova , T. Doert , A. Isaeva , B. Büchner , V. Kataev

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 study antiferromagnetic two-leg spin-1/2 ladders with strong bond randomness, using the real space renormalization group method. We find the low-temperature spin susceptibility of the system follows non-universal power laws, and the…

Disordered Systems and Neural Networks · Physics 2009-11-07 Eddy Yusuf , Kun Yang

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

1H nuclear magnetic resonance (NMR) measurements in [YPc2]0, an organic compound formed by radicals stacking along chains, are presented. The temperature dependence of the macroscopic susceptibility, of the NMR shift and of the spin-lattice…

Strongly Correlated Electrons · Physics 2015-05-20 F. Branzoli , P. Carretta , M. Filibian , S. Klyatskaya , M. Ruben

Electron Spin Resonance (ESR) can microscopically probe both conduction electrons (ce) and local moment (LM) spin systems in different materials. A ce spin resonance (CESR) is observed in metallic systems based on light elements or with…

Strongly Correlated Electrons · Physics 2009-08-04 L. M. Holanda , J. M. Vargas , C. Rettori , S. Nakatsuji , K. Kuga , Z. Fisk , S. B. Oseroff , P. G. Pagliuso

The unavoidable presence of vibrations in solid-state devices can drastically modify the expected electron spin resonance (ESR) absorption spectrum in magnetically active systems. In this work, we model the effect of phonons and temperature…

Mesoscale and Nanoscale Physics · Physics 2020-08-26 Ariel Norambuena , Alejandro Jimenez , Christoph Becher , Jerónimo R. Maze
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