Magnetic resonance in low-temperature paramagnets

Low-temperature paramagnets are a class of spin systems that remain in a disordered paramagnetic state down to the lowest temperatures despite the presence of noticeable spin-spin exchange coupling. The magnetic properties of these systems at low temperatures are due to collective spin excitations, and, in a magnetic field, such spin systems can demonstrate field-induced antiferromagnetic ordering. Magnetic resonance allows studying the details of the excitation spectrum in the paramagnetic low-field and ordered high-field phases of low-temperature paramagnets, revealing the fine structure of the spectrum of collective excitations, details of the interaction between excitations, changes in the excitation spectrum induced by the magnetic field, and the emergence of non-Goldstone modes of spin dynamics in high-field ordered phases.

Correspondence should be addressed to ^†glazkov@kapitza.ras.ru
Keywords: spin liquid, magnetic resonance, low-temperature paramagnets, quantum magnets
PACS: 75.10.Jm, 75.50.Ee, 76.30.−v, 76.50.+g (all)
DOI: 10.3367/UFNe.2024.07.039756
URL: https://ufn.ru/en/articles/2024/12/g/
Web of Science

001449627100007
Scopus

2-s2.0-85217279105
ADS NASA

2024PhyU...67.1248G
Citation: Glazkov V N "Magnetic resonance in low-temperature paramagnets" Phys. Usp. 67 1248–1253 (2024)

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Received: 1st, August 2024, accepted: 10th, July 2024

Оригинал: Глазков В Н «Магнитный резонанс в низкотемпературных парамагнетиках» УФН 194 1320–1325 (2024); DOI: 10.3367/UFNr.2024.07.039756

References (32) Cited by (2) Similar articles (20) ↓

I.A. Zaliznyak, O.A. Petrenko, L.A. Prozorova “Properties of quasi-one-dimensional antiferromagnets with noncollinear structure” Sov. Phys. Usp. 35 (4) 328–330 (1992)
A.I. Smirnov, V.N. Glazkov “Defects in spin-gap magnets: multispin clusters” Phys. Usp. 45 1192–1195 (2002)
S.S. Sosin, L.A. Prozorova, A.I. Smirnov “New magnetic states in crystals” Phys. Usp. 48 83–90 (2005)
A.I. Smirnov “Fermi-liquid of spinons in quasi-one-dimensional antiferromagnets” Phys. Usp., accepted
V.V. Dmitriev, D.V. Petrova et al “Investigations of new phases of superfluid ³He in nematic aerogel using a vibrating wire” Phys. Usp. 67 1239–1247 (2024)
A.V. Turlapov “Kapitza—Dirac diffraction of atoms” Phys. Usp. 67 1254–1256 (2024)
A.A. Mukhin, A.M. Kuzmenko et al “Dynamic magnetoelectric phenomena within electromagnons in rare-earth borate multiferroics” Phys. Usp. 58 993–1001 (2015)
A.I. Smirnov “Magnetic resonance of intrinsic and extrinsic defects in a spin-Peierls magnet CuGeO₃” Phys. Usp. 43 642–646 (2000)
A.M. Kalashnikova, A.V. Kimel, R.V. Pisarev “Ultrafast optomagnetism” Phys. Usp. 58 969–980 (2015)
M.N. Popova, K.N. Boldyrev “New effects of the electron—phonon interaction in dielectrics” Phys. Usp. 62 275–281 (2019)
A.I. Smirnov, L.E. Svistov et al “Triangular lattice antiferromagnet RbFe(MoO₄)₂” Phys. Usp. 53 844–848 (2010)
“90th anniversary of the birth of A S Borovik-Romanov (Scientific session of the Physical Sciences Division of the Russian Academy of Sciences, 24 March 2010)” Phys. Usp. 53 843–858 (2010)
N.S. Averkiev “Spin relaxation anisotropy in two-dimensional semiconductors” Phys. Usp. 53 742–745 (2010)
V.V. Dmitriev, S.S. Sosin et al “Joint scientific session of the Physical Sciences Division of the Russian Academy of Sciences and the Joint Physical Society of the Russian Federation (honoring the 110th birthday of P L Kapitza and the 70th anniversary of the P L Kapitza Institute for Physical Problems) (16 June 2004)” Phys. Usp. 48 77–83 (2005)
M.N. Popova “Infrared spectroscopy of new spin-Peierls compounds” Phys. Usp. 42 288–290 (1999)
K.M. Salikhov, Yu.E. Kandrashkin “Spin coherence effects in the EPR spectroscopy of separated charges in a photosynthesis reaction centre” Phys. Usp. 39 191–193 (1996)
V.E. Kataev, Yu.S. Greznev et al “An EPR study of the density of states and effective coupling constant in La₂CuO₄ doped with Sr or Ba” Phys. Usp. 39 197–199 (1996)
A.I. Smirnov, I.N. Khlyustikov “Magnetoelectric effects and the Stark effect in antiferromagnetic Gd₂CuO₄” Phys. Usp. 38 1169–1173 (1995)
G.V. Kozlov, A.A. Mukhin et al “Spin-flipping transitions and dynamic properties of rare-earth weak ferromagnetics” Sov. Phys. Usp. 34 (9) 835–836 (1991)
P.E. Zil’berman, A.G. Temiryazev, M.P. Tikhomirova “Short spin waves of exchange nature in ferrite films: excitation, propagation, and potential applications” Phys. Usp. 38 1173–1177 (1995)

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