Ising-like antiferromagnetism on the octahedral sublattice of a cobalt-containing garnet and the potential for quantum criticality

Neer, Abbey J.; Milam-Guerrero, JoAnna; So, Justin; Melot, Brent C.; Ross, Kate; Hulvey, Zeric; Brown, Craig M.; Sokol, Alexey A.; Scanlon, David O.

doi:10.1103/physrevb.95.144419

Cited by 9 publications

(9 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[001] and [001 ̅ ] such that the net moment is zero. The Mn 3+ spins in each unit cell are aligned along the body diagonals, as reported for the Ising garnet CaY2Co2Ge3O12, 27 however their relative orientation is completely different. The Mn 3+ are oriented along…”

Section: Main Textmentioning

confidence: 83%

See 1 more Smart Citation

Relieving the frustration through Mn3+ substitution in holmium gallium garnet

et al. 2017

View full text Add to dashboard Cite

We present a study on the impact of Mn 3+ substitution in the geometrically frustrated Ising garnet Ho3Ga5O12 using bulk magnetic measurements and low temperature powder neutron diffraction. We find that the transition temperature, TN = 5.8 K, for Ho3MnGa4O12 is raised by almost 20 when compared to Ho3Ga5O12. Powder neutron diffraction on Ho3MnxGa5-xO12 (x = 0.5, 1) below TN shows the formation of a long range ordered ordered state with k = (0,0,0). Ho 3+ spins are aligned antiferromagnetically along the six crystallographic axes with no resultant moment while the Mn 3+ spins are oriented along the body diagonals, such that there is a net moment along [111]. The magnetic structure can be visualised as ten-membered rings of corner-sharing triangles of Ho 3+ spins with the Mn 3+ spins ferromagnetically coupled to each individual Ho 3+ spin in the triangle. Substitution of Mn 3+ completely relieves the magnetic frustration with f = CW/TN ~ 1.1 for Ho3MnGa4O12.

show abstract

Section: Main Textmentioning

confidence: 83%

“…Similar transitions in Ising garnets containing magnetic ions exclusively on the A site have recently been reported. 27 The plot of dM/dH for Ho3Ga5O12 also shows a feature at low fields < 0.2 T, Figure S3, however further measurements are required to understand the nature of these field-induced transitions.…”

Section: Main Textmentioning

confidence: 98%

Relieving the frustration through Mn3+ substitution in holmium gallium garnet

et al. 2017

View full text Add to dashboard Cite

show abstract

“…To better understand the magnetic coupling within each sublattice, individual sites must be isolated from one another by forcing magnetic cations to occupy a single site through a judicious selection of diamagnetic components in the material . A great deal of work has been done in this regard to study the magnetism of octahedral and cubic sites in materials like Gd 3 Ga 5 O 12 , − Mn 3 Al 2 Ge 3 O 12 , , Mn 3 Al 2 Si 3 O 12 , , CaY 2 Co 2 Ge 3 O 12 , and Ca 3 Cr 2 Ge 3 O 12 . Yet, keeping cations with open valence shells on the tetrahedral site is far more challenging due to the lack of magnetic cations with a strong preference for a tetrahedral coordination environment.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Cubic Sublattice on Magnetic Coupling between the Tetrahedral Sites of Garnet

et al. 2021

Self Cite

View full text Add to dashboard Cite

We present a study on the nuclear and magnetic structures of two iron-based garnets with magnetic cations isolated on tetrahedral sites. Ca2YZr2Fe3O12 and Ca2LaZr2Fe3O12 offer an interesting comparison for examining the effect of increasing cation size within the diamagnetic backbone of the garnet crystal structure, and how such changes affect the magnetic order. Despite both systems exhibiting well-pronounced magnetic transitions at low temperatures, we also find evidence for diffuse magnetic scattering due to a competition between the nearest-neighbor, next nearest-neighbor, and so on, within the tetrahedral sites. This competition results in a complex noncollinear magnetic structure on the tetrahedral sublattice creating a mixture of ferro- and antiferromagnetic interactions above the long-range ordering temperature near 20 K and suggests that the cubic site of the garnet plays a significant role in mediating the superexchange interactions between tetrahedral cations.

show abstract

“…For instance, Cobalt-based compounds showing one-dimensional spinchain structure such as Co3(BPO4)2(PO4)(OH)3 [19]and CoCl2.2H2O [24] were reported with a step-like magnetization curves. Furthermore, the cobalt-containing garnet, CaY2Co2Ge3O12 [25], was reported with unusual anisotropic and chainlike antiferromagnetism.…”

Section: Introductionmentioning

confidence: 99%

Unconventional spin-glass-like state in AgCo2V3O10, the novel magnetically frustrated material

Hadouchi

Assani

Saadi

et al. 2019

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

Single crystals of a new silver and-cobalt based vanadate AgCo2V3O10 were grown from a melted mixture. The crystal structure determination reveals that this new vanadate crystallizes in triclinic system with space group P1 ̅ . The structure of the titled compound is constructed from CoO6 octahedra and VO4 tetrahedra sharing edges and vertices leading to an open threedimensional framework delimiting tunnels along [001], where the Ag cations are located. The bands observed in Raman spectrum were assigned to corresponding vibrations of the VO4 groups. DC and AC magnetization (susceptibility) measurements revealed the spin-glass (SG) -type transition below a frequency-independent temperature Tf(H) that is nearly independent on the applied magnetic field. Magnetic field H> 10 kOe induces the spin glass-antiferromagnet.These observations brings AgCo2V3O10 into the class of geometrically frustrated magnetic systems.

show abstract

Ising-like antiferromagnetism on the octahedral sublattice of a cobalt-containing garnet and the potential for quantum criticality

Cited by 9 publications

References 24 publications

Relieving the frustration through Mn3+ substitution in holmium gallium garnet

Relieving the frustration through Mn3+ substitution in holmium gallium garnet

Influence of the Cubic Sublattice on Magnetic Coupling between the Tetrahedral Sites of Garnet

Unconventional spin-glass-like state in AgCo2V3O10, the novel magnetically frustrated material

Contact Info

Product

Resources

About