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Aczel, A. A.; Li, Ling; Garlea, V. Ovidiu; Yan, Jiaqiang; Weickert, Franziska; Zapf, V. S.; Movshovich, R.; Jaime, M.; Baker, Peter J.; Keppens, Veerle; Mandrus, David

doi:10.1103/physrevb.92.041110

Cited by 14 publications

(12 citation statements)

References 44 publications

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“…On cooling to 5 K the diffuse scattering is marginally more intense, however, when approaching the ordering temperature (see the T = 2.5 K curve) it becomes much more structured and develops well-defined maxima at 2θ = 24 • and 64 • . At this temperature, the observed diffuse scattering pattern (and therefore the structure of shortrange magnetic correlations) is reminiscent of what has previously been observed at temperatures slightly above ordering in similar compounds such as [23] and BaDy 2 O 4 [34].…”

Section: Powder Neutron Diffractionsupporting

confidence: 72%

“…Previous studies of the SrLn 2 O 4 family mostly focused on the heavy rare-earth members, such as SrGd 2 O 4 [2][3][4], SrDy 2 O 4 [5][6][7][8][9][10], SrHo 2 O 4 [11][12][13][14][15], SrEr 2 O 4 [13,[16][17][18][19][20], and SrYb 2 O 4 [21]. The magnetic properties of SrNd 2 O 4 containing a lighter lanthanide, Nd, have not yet been reported, although BaNd 2 O 4 and BaTb 2 O 4 have been investigated with magnetisation, heat-capacity, and powder neutron diffraction measurements [22,23].…”

Section: Introductionmentioning

confidence: 99%

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Magnetic structure and low temperature properties of geometrically frustrated SrNd$_2$O$_4$

Qureshi,

Wildes,

Ritter

et al. 2021

Preprint

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We report the low-temperature properties of SrNd2O4, a geometrically frustrated magnet. Magnetisation and heat capacity measurements performed on polycrystalline samples indicate the appearance of a magnetically ordered state at TN = 2.28(4) K. Powder neutron diffraction measurements reveal that an antiferromagnetic state with the propagation vector q = (0 1 2 1 2 ) is stabilised below this temperature. The magnetic order is incomplete, as only one of the two Nd 3+ sites carries a significant magnetic moment while the other site remains largely disordered. The presence of a disordered magnetic component below TN is confirmed with polarised neutron diffraction measurements. In an applied magnetic field, the bulk properties measurements indicate a phase transition at about 30 kOe. We construct a tentative H-T phase diagram of SrNd2O4 from these measurements.

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Section: Powder Neutron Diffractionsupporting

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Magnetic structure and low temperature properties of geometrically frustrated SrNd$_2$O$_4$

Qureshi,

Wildes,

Ritter

et al. 2021

Preprint

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“…If the internal magnetic fields experienced by the implanted muons at 0.1 K are static, one should observe a significant decoupling of the muon spin relaxation upon the application of a magnetic field approximately one order of magnitude larger than the internal field itself. 28 However, the relaxation of the muon decay asymmetry in TbInO3 at this temperature is barely decoupled even by the maximum available field of 0.4 T. The ability to successfully model the muon decay asymmetry with a simple exponential relaxation at all temperatures once again points to a state of dynamically fluctuating spins, rather than a glassy, frozen state for which a stretched exponential model is often found to be more appropriate. 31 Moreover, the temperature dependence of the relaxation rate, λ, as shown in Fig.…”

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confidence: 98%

Two-dimensional spin liquid behaviour in the triangular-honeycomb antiferromagnet TbInO3

et al. 2019

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Spin liquid ground states are predicted to arise within several distinct scenarios in condensed matter physics. The observation of these disordered magnetic states is particularly pervasive amongst a class of materials known as frustrated magnets, in which the competition between various magnetic exchange interactions prevents the system from adopting long-range magnetic order at low temperatures. Spin liquids continue to be of great interest due to their exotic nature and the possibility that they may support fractionalised excitations, such as Majorana fermions. Systems that allow for such phenomena are not only fascinating from a fundamental perspective but may also be practically significant in future technologies based on quantum computation. Here we show that the underlying antiferromagnetic sublattice in TbInO3 undergoes a crystal field induced triangular-to-honeycomb dilution at low temperatures. The absence of a conventional magnetic ordering transition at the lowest measurable temperatures indicates that another critical mechanism must govern in the ground state selection of TbInO3. We propose that anisotropic exchange interactionsmediated through strong spin-orbit coupling on the emergent honeycomb lattice of TbInO3give rise to a highly frustrated spin liquid.One notable example of a spin liquid 1,2 is that of the S = ½ Heisenberg antiferromagnet on a two-dimensional kagome lattice, a frustrated network of corner-sharing triangles. It is now widely considered that this magnetic system displays a quantum spin liquid ground state 3 and there is recent experimental evidence to suggest that a gapped quantum spin liquid state is likely realised in the Cu 2+ -based kagome antiferromagnet, herbertsmithite. 4 The two-dimensional honeycomb net, on the other hand, is a bipartite lattice and, therefore, does not give rise to frustrated ground states in the presence of conventional nearest-

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“…1 The magnetism in many members of the AR 2 O 4 (A = Ba, Sr and R = Nd, Gd, Tb, Dy, Ho, Er, Tm and Yb) family is qualitatively well described by the zig-zag chain model, arXiv:1702.02329v2 [cond-mat.str-el] 19 Apr 2017 such as SrDy 2 O 4 and SrHo 2 O 4 . 9 These compounds are frustrated magnets with various interesting properties: they feature spin-liquid-like ground-states, 10 magnetic phases with multiple coexisting order parameters, [11][12][13] low-dimensional correlations, 9 magnetization plateaus 14 and magnetic field induced order. [15][16][17][18] The magnetic rare earth ions form a distorted honeycomb lattice in the ab plane and zig-zag chains along the c-axis.…”

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confidence: 99%

Absence of long-range order in the frustrated magnet SrDy2O4 due to trapped defects from a dimensionality crossover

et al. 2017

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Magnetic frustration and low dimensionality can prevent long range magnetic order and lead to exotic correlated ground states. SrDy 2 O 4 consists of magnetic Dy 3+ ions forming magnetically frustrated zig-zag chains along the c-axis and shows no long range order to temperatures as low as T = 60 mK. We carried out neutron scattering and AC magnetic susceptibility measurements using powder and single crystals of SrDy 2 O 4 . Diffuse neutron scattering indicates strong one-dimensional (1D) magnetic correlations along the chain direction that can be qualitatively accounted for by the axial next-nearest neighbour Ising (ANNNI) model with nearestneighbor and next-nearest-neighbor exchange J 1 = 0.3 meV and J 2 = 0.2 meV, respectively. Three-dimensional (3D) correlations become important below T * ≈ 0.7 K. At T = 60 mK, the short range correlations are characterized by a putative propagation vector k 1/2 = (0,2 ). We argue that the absence of long range order arises from the presence of slowly decaying 1D domain walls that are trapped due to 3D correlations. This stabilizes a low-temperature phase without long range magnetic order, but with well-ordered chain segments separated by slowly-moving domain walls.

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Spin-liquid ground state in the frustratedJ1−J2zigzag chain systemBaTb2O4

Cited by 14 publications

References 44 publications

Magnetic structure and low temperature properties of geometrically frustrated SrNd$_2$O$_4$

Magnetic structure and low temperature properties of geometrically frustrated SrNd$_2$O$_4$

Two-dimensional spin liquid behaviour in the triangular-honeycomb antiferromagnet TbInO3

Absence of long-range order in the frustrated magnet SrDy2O4 due to trapped defects from a dimensionality crossover

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