Search Results - "Zvyagin, S A"
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Pressure-tuning the quantum spin Hamiltonian of the triangular lattice antiferromagnet Cs2CuCl4
Published in Nature communications (06-03-2019)“…Quantum triangular-lattice antiferromagnets are important prototype systems to investigate numerous phenomena of the geometrical frustration in condensed…”
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2
Cobalt(II) “Scorpionate” Complexes as Models for Cobalt-Substituted Zinc Enzymes: Electronic Structure Investigation by High-Frequency and -Field Electron Paramagnetic Resonance Spectroscopy
Published in Journal of the American Chemical Society (14-04-2010)“…A series of complexes of formula TpR,R′ CoL, where TpR,R′− = hydrotris(3-R,5-R′-pyrazol-1-yl)borate (“scorpionate”) anion (R = tert-butyl, R′ = H, Me,…”
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3
High Spin Co(I): High-Frequency and -Field EPR Spectroscopy of CoX(PPh3)3 (X = Cl, Br)
Published in Inorganic chemistry (07-05-2012)“…The previously reported pseudotetrahedral Co(I) complexes, CoX(PR3)3, where R = Me, Ph, and chelating analogues, and X = Cl, Br, I exhibit a spin triplet…”
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4
Magnetic-field-induced condensation of triplons in han purple pigment BaCuSi2O6
Published in Physical review letters (20-08-2004)“…Besides being an ancient pigment, BaCuSi2O6 is a quasi-2D magnetic insulator with a gapped spin dimer ground state. The application of strong magnetic fields…”
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5
Low-Spin Hexacoordinate Mn(III): Synthesis and Spectroscopic Investigation of Homoleptic Tris(pyrazolyl)borate and Tris(carbene)borate Complexes
Published in Inorganic chemistry (07-01-2013)“…Three complexes of Mn(III) with “scorpionate” type ligands have been investigated by a variety of physical techniques. The complexes are [Tp2Mn]SbF6 (1),…”
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6
Electronic Structure of Four-Coordinate C3v Nickel(II) Scorpionate Complexes: Investigation by High-Frequency and -Field Electron Paramagnetic Resonance and Electronic Absorption Spectroscopies
Published in Inorganic chemistry (30-10-2006)“…A series of complexes of formula TpNiX, where Tp*- = hydrotris(3,5-dimethylpyrazole)borate and X = Cl, Br, I, has been characterized by electronic absorption…”
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7
Definitive Spectroscopic Determination of Zero-Field Splitting in High-Spin Cobalt(II)
Published in Journal of the American Chemical Society (25-02-2004)“…A high-spin Co(II) complex (3d7, S = 3/2), Co(PPh3)2Cl2 (Ph = phenyl), has been investigated in the solid state by both high-frequency and -field electron…”
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8
Magnetic excitations in the spin-1/2 triangular-lattice antiferromagnet Cs2CuBr4
Published in New journal of physics (27-11-2015)“…We report on high-field electron spin resonance (ESR) studies of magnetic excitations in the spin-1/2 triangular-lattice antiferromagnet Cs2CuBr4…”
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9
Excitation hierarchy of the quantum sine-gordon spin chain in a strong magnetic field
Published in Physical review letters (09-07-2004)“…The magnetic excitation spectrum of copper pyrimidine dinitrate, a material containing S = 1 / 2 antiferromagnetic chains with alternating g tensor and the…”
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10
Synthesis, Characterization, and Physicochemical Properties of Manganese(III) and Manganese(V)−Oxo Corrolazines
Published in Inorganic chemistry (27-06-2005)“…The structural and physicochemical properties of the manganese−corrolazine (Cz) complexes (TBP8Cz)MnV⋮O (1) and (TBP8Cz)MnIII (2) (TBP = p-tert-butylphenyl)…”
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11
Tunable-frequency high-field electron paramagnetic resonance
Published in Journal of magnetic resonance (1997) (01-02-2006)“…A tunable-frequency methodology based on backward wave oscillator sources in high-frequency and -field EPR (HFEPR) is described. This methodology is…”
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12
Electron spin resonance insight into broadband absorption of the Cu3Bi(SeO3)2O2Br metamagnet
Published in AIP advances (01-05-2016)“…Metamagnets, which exhibit a transition from a low-magnetization to a high-magnetization state induced by the applied magnetic field, have recently been…”
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13
Electron spin resonance in sine-Gordon spin chains in the perturbative spinon regime
Published in Physical review letters (01-07-2005)“…We report the low-temperature multifrequency ESR studies of copper pyrimidine dinitrate, a spin-1/2 antiferromagnetic chain with alternating g tensor and the…”
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14
Nature of Magnetic Excitations in the High-Field Phase of α−RuCl3
Published in Physical review letters (17-07-2020)“…We present comprehensive electron spin resonance (ESR) studies of in-plane oriented single crystals of α−RuCl3, a quasi-two-dimensional material with honeycomb…”
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15
High-Frequency and -Field EPR of a Pseudo-octahedral Complex of High-Spin Fe(II): Bis(2,2‘-bi-2-thiazoline)bis(isothiocyanato)iron(II)
Published in Journal of the American Chemical Society (02-06-2004)“…A pseudo-octahedral complex of high-spin Fe(II), bis(2,2‘-bi-2-thiazoline)bis(isothiocyanato)iron(II), which has a cis-FeN‘2N4 chromophore, has been…”
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16
[GdNi6] and [LaNi6]: High-Field EPR Spectroscopy and Magnetic Studies of Exchange-Coupled Octahedral Clusters
Published in Angewandte Chemie International Edition (18-03-2005)“…The competition between ferromagnetic and antiferromagnetic exchange for Ni–Gd and Ni–Ni interactions, respectively, leads to spin frustration and a degenerate…”
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Dimensional reduction and incommensurate dynamic correlations in the S=12 triangular-lattice antiferromagnet Ca3ReO5Cl2
Published in Nature communications (01-12-2022)“…The observation of spinon excitations in the S = 1 2 triangular antiferromagnet Ca 3 ReO 5 Cl 2 reveals a quasi-one-dimensional (1D) nature of magnetic…”
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18
Direct Determination of Exchange Parameters in Cs 2 CuBr 4 and Cs 2 CuCl 4 : High-Field Electron-Spin-Resonance Studies
Published in Physical review letters (01-02-2014)“…Spin-1/2 Heisenberg antiferromagnets Cs2CuCl4 and Cs2CuBr4 with distorted triangular-lattice structures are studied by means of electron spin resonance…”
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19
High-frequency/high-field EPR spectroscopy of the high-spin ferrous ion in hexaaqua complexes
Published in Magnetic resonance in chemistry (01-12-2005)“…Electron paramagnetic resonance (EPR) at conventional magnetic fields and microwave frequencies, respectively, B0 ≤ 1.5 T, ν ≤ 35 GHz, has been widely applied…”
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20
Origin of the Zero-Field Splitting in Mononuclear Octahedral Mn(IV) Complexes: A Combined Experimental and Theoretical Investigation
Published in Inorganic chemistry (01-02-2016)“…The aim of this work was to determine and understand the origin of the electronic properties of Mn(IV) complexes, especially the zero-field splitting (ZFS),…”
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