Magnetic structure of the quantum magnet 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>SrCu</mml:mi><mml:msub><mml:mrow><mml:mi>Te</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mn>6</mml:mn></mml:msub></mml:math>

Chillal, S.; Islam, A. T. M. N.; Luetkens, H.; Canévet, E.; Skourski, Y.; Khalyavin, D. D.; Lake, B.

doi:10.1103/physrevb.102.224424

Cited by 11 publications

(19 citation statements)

References 31 publications

(54 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We find that these values of the couplings are consistent with the sum of interactions predicted from the high-temperature Curie-Weiss temperature in Ref. [16]. The ratio of the interchain coupling to the intrachain coupling J inter J intra = J 1 J 3 ∼ 1 25 indicates that SrCuTe 2 O 6 is highly 1D.…”

Section: Discussionsupporting

confidence: 89%

“…The INS of SrCuTe 2 O 6 was investigated on polycrystalline and single-crystal samples that were prepared following the procedure explained in Ref. [16].…”

Section: Samples and Experimental Methodsmentioning

confidence: 99%

“…SrCuTe 2 O 6 has a lattice constant of a = 12.4373 Å [15]. The static susceptibility of single-crystal and polycrystalline SrCuTe 2 O 6 yields a negative Curie-Weiss temperature of θ CW = −27 ± 1 K [16], revealing predominantly antiferromagnetic exchange interactions [13,16,17], and shows a broad maximum at 32 K. This feature has been attributed to a 1D spin- 1 2 Heisenberg antiferromagnetic chain revealing J 3 = 49 K [13,16,17] as the dominant interaction. However, two sharp features occur in the susceptibility at lower temperatures T N1 = 5.5 K and T N2 = 4.5 K, where a sharp λ-type anomaly is also observed in the heat capacity, indicating the onset of long-range magnetic order in the system.…”

Section: Introductionmentioning

confidence: 99%

“…In the low-temperature magnetic phase, the spins order in a 120 • coplanar structure around the triangles formed by J 1 [16,19] with magnetic propagation vector q = (0, 0, 0). The Cu 2+ spins on the three vertices of these triangles are aligned along the local (110) directions and couple together the three mutually perpendicular chains formed by J 3 along the cubic a, b, and c axes.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Weak three-dimensional coupling of Heisenberg quantum spin chains in SrCuTe2O6

et al. 2021

Self Cite

View full text Add to dashboard Cite

The magnetic Hamiltonian of the Heisenberg quantum antiferromagnet SrCuTe 2 O 6 is studied by inelastic neutron scattering technique on powder and single-crystalline samples above and below the magnetic transition temperatures at 8 and 2 K. The high-temperature spectra reveal a characteristic diffuse scattering corresponding to a multispinon continuum, confirming the dominant quantum spin chain behavior due to the third neighbor interaction J intra = 4.22 meV (49 K). The low-temperature spectra exhibit sharper excitations at energies <1.25 meV, which can be explained by considering a combination of weak antiferromagnetic first nearest neighbor interchain coupling J 1 = 0.17 meV (1.9 K) and even weaker ferromagnetic second nearest neighbor J 2 = −0.037 meV (−0.4 K) or a weak ferromagnetic J 2 = −0.11 meV (−1.3 K) and antiferromagnetic J 6 = 0.16 meV (1.85 K), giving rise to the long-range magnetic order and spin-wave excitations at low energies. These results suggest that SrCuTe 2 O 6 is a highly one-dimensional Heisenberg system with three mutually perpendicular spin chains coupled by a weak ferromagnetic J 2 in addition to the antiferromagnetic J 1 or J 6 , presenting a contrasting scenario from the highly frustrated hyper-hyperkagome lattice (equally strong antiferromagnetic J 1 and J 2 ) found in the isostructural quantum spin liquid candidate PbCuTe 2 O 6 .

show abstract

Section: Discussionsupporting

confidence: 89%

“…The INS of SrCuTe 2 O 6 was investigated on polycrystalline and single-crystal samples that were prepared following the procedure explained in Ref. [16].…”

Section: Samples and Experimental Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Weak three-dimensional coupling of Heisenberg quantum spin chains in SrCuTe2O6

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…Recently a family of quantum magnets with chemical formula ACuTe 2 O 6 (A = Sr, Pb) was reported [15][16][17][18][19][20][21][22]. These compounds have cubic space group P4 1 32 where the magnetic Cu 2+ ions (S = 1/2) occupy the 12d Wyckoff site.…”

Section: Introductionmentioning

confidence: 99%

Structural and magnetic properties of the quantum magnet BaCuTe2O6

et al. 2021

Self Cite

View full text Add to dashboard Cite

We investigate the structural and magnetic properties of the quantum magnet BaCuTe 2 O 6 . This compound is synthesized in powder and single crystal form for the first time. Synchrotron x-ray and neutron diffraction reveal a cubic crystal structure (P4 1 32) where the magnetic Cu 2+ ions form a complex network. Heat capacity and static magnetic susceptibility measurements suggest the presence of antiferromagnetic interactions with a Curie-Weiss temperature of ≈− 33 K, while long-range magnetic order occurs at the much lower temperature of ≈6.3 K. The magnetic structure, solved using neutron diffraction, reveals antiferromagnetic order along chains parallel to the a, b, and c crystal axes. This is consistent with the magnetic excitations which resemble the multispinon continuum typical of the spin-1/2 Heisenberg antiferromagnetic chain. A consistent intrachain interaction value of ≈34 K is achieved from the various techniques. Finally the magnetic structure provides evidence that the chains are coupled together in a noncollinear arrangement by a much weaker antiferromagnetic, frustrated hyperkagome interaction.

show abstract

Evolution of field induced magnetic phase attributed to higher order magnetic moments in TbVO4

Ranaut

Mukherjee

2023

Sci Rep

View full text Add to dashboard Cite

Study of quantum magnetism in rare earth orthovanadates (RVO4, R = rare earth) is a topic which is currently being investigated by the condensed matter physicists. In this work, through both experimental and theoretical tools, we report the presence of field induced magnetic phase, attributed to fifth order susceptibility, in TbVO4, at low temperatures. The structural transition reported around 31 K, results in the formation of pseudospin—$${\raise0.7ex\hbox{$1$} \!\mathord{\left/ {\vphantom {1 2}}\right.\kern-0pt} \!\lower0.7ex\hbox{$2$}}$$ 1 / 2 doublet ground state separated by an energy δ. Temperature dependent heat capacity indicates toward an increment in δ, on application of magnetic fields. Above 10 kOe, the Zeeman energy associated with magnetic anisotropy strengthens, resulting in an enhanced splitting of the pseudo-doublet ground state. This increased splitting stabilizes the magnetic phase associated with higher order moments. These observations are further supported by our theoretical model to evaluate δ, as a function of applied field. Our study provides a platform to study the possible presence of higher order moments in other Jahn–Teller systems.

show abstract

Magnetic structure of the quantum magnet SrCuTe2O6

Cited by 11 publications

References 31 publications

Weak three-dimensional coupling of Heisenberg quantum spin chains in SrCuTe2O6

Weak three-dimensional coupling of Heisenberg quantum spin chains in SrCuTe2O6

Structural and magnetic properties of the quantum magnet BaCuTe2O6

Evolution of field induced magnetic phase attributed to higher order magnetic moments in TbVO4

Contact Info

Product

Resources

About