Antiferromagnetic State in the Quasi-One-Dimensional BaCo2V2O8: 51V-NMR Study on a Single Crystal

Kawasaki, Yu; Ideta, Yukiichi; Kishimoto, Yutaka; Ohno, Takashi; Omura, K.; Fujita, Toshiaki; Kimura, Shojiro; Hagiwara, Masayuki

doi:10.7566/jpscp.3.014001

Cited by 4 publications

(4 citation statements)

References 16 publications

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“…Below 7 T, the 51 V spectra have six peaks. Such a line splitting is caused by twinned magnetic domains in the Ising ordered phase originating from frustrated interchain exchange couplings [31,[35][36][37]; In the intermediate field range from 7 to 7.7 T, a single NMR line is seen close to the central frequency f ≈ 51 γH, which suggests the absence of magnetic ordering; At fields above 7.7 T, two NMR lines, labeled as &1 and &2, emerge and are resolvable at temperatures above 10 K (Fig. S8 [31]).…”

mentioning

confidence: 99%

Quantum Criticality of the Ising-like Screw Chain Antiferromagnet SrCo2V2O
Cui
¹
,
Zou
²
,
Xi
³

et al. 2019
Phys. Rev. Lett.
49
5
38
2
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Recently, a class of Ising anisotropic antiferromagnetic screw chain compounds ACo 2 V 2 O 8 (A =Ba,Sr) [16,17] attracts a lot of research attention. In these compounds, the easy-axis is along the chain direction (c-axis), and the intrachain exchange coupling J z ≈ 5-7 meV [18,19]. Both compounds order at fairly low temperatures (about 5 K), which implies the interchain exchange coupling J ′ ≪ J [20][21][22]. The magnetic order can be suppressed by a transverse field applied in the ab-plane [16,17]. Interestingly, the critical field values and the quantum critical behaviors are very different for fields applied along the [100] and the [110] direction [19,[23][24][25][26][27][28][29]. In BaCo 2 V 2 O 8 , separated 3D and 1D QCPs were suggested with field along the [110] direction at H 20 T [28]. For the field along the [100] direction, H C ∼ 10 T [24], much lower

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mentioning

confidence: 99%

Quantum Criticality of the Ising-like Screw Chain Antiferromagnet SrCo2V2O
Cui
¹
,
Zou
²
,
Xi
³

et al. 2019
Phys. Rev. Lett.
49
5
38
2
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“…First, the actual dipolar field is proportional to the ordered moment of Co 2+ , relative to the current assumption of 1 µ B /Co 2+ . Second, the off-diagonal hyperfine field should be much larger with the pseudodipolar type than that with the pure dipolar type as suggested by previous works in BaCo 2 V 2 O 8 29 and SrCo 2 V 2 O 8 13 .…”

Section: Sitementioning

confidence: 71%

“…The hyperfine coupling among 51 V nuclei and Co 2+ ions is primarily of the pseudodipolar type 13,28,29 . Therefore, the effective dipolar field on a 51 V nuclear spin, produced by Co 2+ moments, can be written as…”

Section: Techniquesmentioning

confidence: 99%

“…Since ν q is very small compared to the Zeeman frequency γH, it impacts the frequency of the center NMR line and the Knight shift by a second-order correction of ν q 2 /γH, which is almost negligible. At 4 K, a peaked NMR spectrum, where the center and satellite transitions overlap due to line broadening, is seen, showing the system is in the paramagnetic phase 29,38 . At and below 2 K, the NMR line splits into two peaks with a frequency separation of about 2.2 MHz.…”

Section: Nmr Spectramentioning

confidence: 99%

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Field-induced antiferromagnetism and Tomonaga-Luttinger liquid behavior in the quasi-one-dimensional Ising-Antiferromagnet SrCo2V2O8

Cui,

Fan,

et al. 2022

Preprint

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We investigate the low-temperature properties of the Ising-like screw chain antiferromagnet SrCo2V2O8 under a longitudinal magnetic field by susceptibility and 51 V NMR measurements. The bulk susceptibility χ shows an onset of long-range Ising-antiferromagnetic (AFM) order and the suppression of the order by field with the Néel temperature dropped from 5.1 K to 2 K when field increases from 0.1 T to 4 T. The suppression of the AFM order by the field is also observed by the NMR spectra and the spin-lattice relaxation 1/T1. At fields above 4 T, χ shows a low-temperature upturn, which is consistent with the onset of a transverse antiferromagnetic order as supported by the quantum Monte Carlo simulations. A line splitting in the NMR spectra is also observed at high temperatures. We show that the line split characterizes the onset of a short-range transverse antiferromagnetic order with magnetic moments orientated along the crystalline [110]/[1 10] directions. The 1/T1 data at higher temperature show a power-law behavior 1/T1∼T α , which is consistent with the Tomonaga-Luttinger-liquid behavior. With increasing the field, the power-law exponent α changes from negative to positive, which clearly shows an inversion of the Luttinger exponent η, where the dominant low-energy spin fluctuations switch from the longitudinal type to the transverse type at a high field of 7 T.

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Field-induced antiferromagnetism and Tomonaga-Luttinger liquid behavior in the quasi-one-dimensional Ising antiferromagnet SrCo2V2O8

Cui

Fan

et al. 2022

Phys. Rev. B

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Antiferromagnetic State in the Quasi-One-Dimensional BaCo₂V₂O₈: ⁵¹V-NMR Study on a Single Crystal

Cited by 4 publications

References 16 publications

Quantum Criticality of the Ising-like Screw Chain Antiferromagnet SrCo2V2O
Cui
¹
,
Zou
²
,
Xi
³

et al. 2019
Phys. Rev. Lett.
49
5
38
2
View full text Add to dashboard Cite

Quantum Criticality of the Ising-like Screw Chain Antiferromagnet SrCo2V2O
Cui
¹
,
Zou
²
,
Xi
³

et al. 2019
Phys. Rev. Lett.
49
5
38
2
View full text Add to dashboard Cite

Field-induced antiferromagnetism and Tomonaga-Luttinger liquid behavior in the quasi-one-dimensional Ising-Antiferromagnet SrCo2V2O8

Field-induced antiferromagnetism and Tomonaga-Luttinger liquid behavior in the quasi-one-dimensional Ising antiferromagnet SrCo2V2O8

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Antiferromagnetic State in the Quasi-One-Dimensional BaCo2V2O8: 51V-NMR Study on a Single Crystal

Cited by 4 publications

References 16 publications

Quantum Criticality of the Ising-like Screw Chain Antiferromagnet SrCo2V2OCui1, Zou2, Xi3 et al. 2019Phys. Rev. Lett.495382View full textAdd to dashboardCite

Quantum Criticality of the Ising-like Screw Chain Antiferromagnet SrCo2V2OCui1, Zou2, Xi3 et al. 2019Phys. Rev. Lett.495382View full textAdd to dashboardCite

Field-induced antiferromagnetism and Tomonaga-Luttinger liquid behavior in the quasi-one-dimensional Ising-Antiferromagnet SrCo2V2O8

Field-induced antiferromagnetism and Tomonaga-Luttinger liquid behavior in the quasi-one-dimensional Ising antiferromagnet SrCo2V2O8

Contact Info

Product

Resources

About

Antiferromagnetic State in the Quasi-One-Dimensional BaCo₂V₂O₈: ⁵¹V-NMR Study on a Single Crystal

Quantum Criticality of the Ising-like Screw Chain Antiferromagnet SrCo2V2O
Cui
¹
,
Zou
²
,
Xi
³

et al. 2019
Phys. Rev. Lett.
49
5
38
2
View full text Add to dashboard Cite

Quantum Criticality of the Ising-like Screw Chain Antiferromagnet SrCo2V2O
Cui
¹
,
Zou
²
,
Xi
³

et al. 2019
Phys. Rev. Lett.
49
5
38
2
View full text Add to dashboard Cite