Spontaneous cycloidal order mediating a spin-reorientation transition in a polar metal

Dashwood, C. D.; Veiga, L. S. I.; Faure, Quentin; Vale, J. G.; Porter, D. G.; Collins, Stephen P.; Manuel, Pascal; Khalyavin, D. D.; Orlandi, Fabio; Perry, Robin; Johnson, Roger A.; McMorrow, D. F.

doi:10.1103/physrevb.102.180410

Cited by 13 publications

(13 citation statements)

References 30 publications

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“…While QOBD may contribute to stabilizing these modulated states, their low dimensionality means that van Hove singularities and nesting probably dominate the formation mechanism. Noncentrosymmetric Ca 3 Ru 2 O 7 provides another interesting example where polarized helicoid order occurs at high temperatures, between two differently oriented antiferromagnetic states [31,32]. Our results show that modulated state formation may occur more widely when applying a transverse field to a ferromagnet.…”

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confidence: 73%

Field-Induced Modulated State in the Ferromagnet PrPtAl

et al. 2021

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confidence: 73%

Field-Induced Modulated State in the Ferromagnet PrPtAl

et al. 2021

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“…This implies that Lifshitz invariants [36] promoting inhomogeneous long-period modulated states are allowed in the free-energy decomposition. In particular, these types of invariants are responsible for the formation of the magnetic helical state [37] and the field-induced chiral soliton lattice in Cr 1/3 NbS 2 [38] as well as in some other systems with noncentrosymmetric crystal structures, such as MnSi [39], Ca 3 Ru 2 O 7 [40], and BiFeO 3 [41]. It is not clear why the commensurate ground state in V 1/3 NbS 2 is robust against the chiral interactions behind the Lifshitz terms.…”

Section: Powder Neutron Diffractionmentioning

confidence: 99%

Magnetic structure investigation of the intercalated transition metal dichalcogenide V1/3NbS2

et al. 2021

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We investigate the temperature evolution of the magnetic structure of V 1/3 NbS 2 using neutron diffraction techniques. We find that V 1/3 NbS 2 has two propagation vectors: k 0 = (0, 0, 0) and k 1 = (0, 0, 1 3 ). The k 0 vector can be associated with an antiferromagnetic ordering of in-plane moments with a refined value of 0.90(5)μ B , and k 1 can be associated with moments along the c axis in an up-down-down configuration with refined values of 1.21(12)μ B and 0.61(6)μ B . Both k 0 and k 1 magnetic components couple with an out-of-plane ferromagnetic moment consistent with magnetization data. Furthermore, single-crystal neutron diffraction shows evidence of diffuse magnetic scattering between the ( 010) and (01± 13 ) Bragg peaks. We also characterize the field and temperature evolution of the magnetic structure in V 1/3 NbS 2 by magnetic susceptibility and heat capacity measurements. The dc susceptibility measurements give an antiferromagnetic transition temperature of T N = 50 K, and the field scans reveal that the moment does not saturate at magnetic fields up to 100 kOe.

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“…Spontaneous spin-reorientation (SR) transitions are characterized by a cooperative rotation of spins on a magnetically ordered sublattice. Such phenomena have attracted substantial attention from the condensed matter and materials physics community, both for their implications for the fundamental nature of magnetic order and dynamics [1] and for wider technological applications: SR transitions may play a vital role in spintronic devices used for novel memory storage and manipulation in next generation computing [2,3]. Indeed, the ability to switch (staggered) magnetization from one regime to another at high frequency is an essential characteristic for the realization of competitive magnetic random access memory [4,5].…”

Section: Introductionmentioning

confidence: 99%

Weak ferromagnetism and spin reorientation in antiferroelectricBiCrO3

et al. 2022

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BiCrO 3 is an antiferroelectric perovskite known to exhibit an unconventional spin reorientation transition between antiferromagnetic structures, accompanied by a large jump in weak ferromagnetism. Using a combination of neutron powder diffraction, magnetometry, and symmetry analysis, we confirm the dominant G-type antiferromagnetic order below T N = 111 K and identify the magnetic phase transition with a spontaneous rotation of Cr 3+ moments from the b axis to a particular direction in the ac plane. We demonstrate the role of antiferroelectric displacements produced by the Bi 3+ lone-pair electrons and octahedral rotations in establishing spin canting via the antisymmetric Dzyaloshinskii-Moriya interaction. This mechanism results in weak ferromagnetism above and below the spin-reorientation and explains the dramatic increase in net magnetization on cooling.

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Spontaneous cycloidal order mediating a spin-reorientation transition in a polar metal

Abstract: This is a copy of the published version, or version of record, available on the publisher's website. This version does not track changes, errata, or withdrawals on the publisher's site.

Cited by 13 publications

References 30 publications

Field-Induced Modulated State in the Ferromagnet PrPtAl

Field-Induced Modulated State in the Ferromagnet PrPtAl

Magnetic structure investigation of the intercalated transition metal dichalcogenide V1/3NbS2

Weak ferromagnetism and spin reorientation in antiferroelectricBiCrO3

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