Short-range magnetic correlations and spin dynamics in the paramagnetic regime of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mo>(</mml:mo><mml:mtext>Mn</mml:mtext><mml:mo>,</mml:mo><mml:mtext>Fe</mml:mtext><mml:mo>)</mml:mo><mml:msub><mml:mrow/><mml:mn>2</mml:mn></mml:msub><mml:mo>(</mml:mo><mml:mtext>P</mml:mtext><mml:mo>,</mml:mo><mml:mtext>Si</mml:mtext><mml:mo>)</mml:mo></mml:math>

Miao, Xuefei; Caron, L. G.; Cedervall, Johan; Gubbens, P.C.M.; Réotier, P. Dalmas de; Yaouanc, A.; Qian, Fengjiao; Wildes, A.; Luetkens, H.; Amato, A.; Dijk, N.H. van; Brück, E.

doi:10.1103/physrevb.94.014426

Cited by 27 publications

(34 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is evidenced by the absence of oscillation behavior (i.e. initial asymmetry loss) in the spectra [70][71][72] . The static random (time-reversal-breaking) field distribution was also excluded due to the lacking of long time recovery to 1/3 of asymmetry, suggesting that the relaxation was caused by dynamic effects 73 .…”

Section: Zf-µsrmentioning

confidence: 96%

Possible gapless spin liquid in the rare-earth kagome lattice magnet Tm3Sb3Zn2O14

et al. 2018

View full text Add to dashboard Cite

We report the thermodynamic and muon spin relaxation (µSR) evidences for a possible gapless spin liquid in Tm3Sb3Zn2O14, with the rare-earth ions Tm 3+ forming a two-dimensional kagomé lattice. We extract the magnetic specific heat of Tm3Sb3Zn2O14 by subtracting the phonon contribution of the non-magnetic isostructural material La3Sb3Zn2O14 and obtain a clear linear-T temperature dependence of magnetic specific heat at low temperatures. No long-range magnetic order was observed down to 0.35 K in the heat capacity measurements, and no signature of spin freezing down to 50 mK was observed in A.C. susceptibility measurements. The absence of magnetic order is further confirmed by the µSR measurements down to 20 mK. We find that the spinlattice relaxation time remains constant down to the lowest temperature. We point out that the physics in Tm3Sb3Zn2O14 is fundamentally different from the Cu-based herbertsmithite and propose spin liquid ground states with non-Kramers doublets on the kagomé lattice to account for the experimental results. However, we can not rule out that these exotic properties are induced by the Tm/Zn site-mixing disorder in Tm3Sb3Zn2O14.

show abstract

Section: Zf-µsrmentioning

confidence: 96%

Possible gapless spin liquid in the rare-earth kagome lattice magnet Tm3Sb3Zn2O14

et al. 2018

View full text Add to dashboard Cite

show abstract

“…This feature becomes less noticeable with an increase in temperature. The previous zerofield mSR study [57] revealed that muons in the Mn 1.70 Fe 0.25 P 0.05 Si 0.05 compound hop fast above 325 K, while they become static below 325 K. In the following analysis, we focus on the LF-mSR spectra measured below 325 K to avoid the muonhopping. Below T C , the initial asymmetry in the spectrum drops significantly, compared to that in the PM state.…”

Section: Msr Measurementmentioning

confidence: 98%

“…In a previous zero-field mSR experiment [57], the standard deviation of the nuclear field distribution in the Mn 1.70 Fe 0.25 P 0.05 Si 0.05 compound was estimated to be 0.13 mT, which is about two orders of magnitude smaller than the applied longitudinal field. Consequently, the nuclear magnetic field is decoupled from the applied LF field in the current LF-mSR experiments, and hence it will not contribute to the observed muon-spin relaxation.…”

Section: Msr Measurementmentioning

confidence: 99%

Spin correlations in (Mn,Fe)2(P,Si) magnetocaloric compounds above Curie temperature

Miao

Caron

Gubbens

et al. 2016

Journal of Science: Advanced Materials and Devices

Self Cite

View full text Add to dashboard Cite

a b s t r a c tThe longitudinal-field muon-spin relaxation (LF-mSR) technique was employed to study the spin correlations in (Mn,Fe) 2 (P,Si) compounds above the ferromagnetic transition temperature (T C ). The (Mn,Fe) 2 (P,Si) compound under study is found to show itinerant magnetism. The standard deviation of the magnetic field distribution of electronic origin increases with a decrease in temperature, which is attributed to the development of spin correlations. The anomalously low magnetic fluctuation rate is suggested to be another signature of the spin correlations. The development of pronounced magnetic fluctuations is in agreement with the observed deviation of the paramagnetic susceptibility from Curie eWeiss behavior. Our study sheds light on the magneto-elastic transition and the mixed magnetism in (Mn,Fe) 2 (P,Si) compounds.

show abstract

“…3(b)], which is indexed to be the (0.355 0 0) magnetic reflection of the SDW phase. Above 60 K, the Bragg peak transforms into diffuse scattering, suggesting the presence of short-range magnetic correlations [44]. The thermal evolution of the full-width-at-half-maximum ( Q) of the (0.355 0 0) peak is presented in Fig.…”

Section: B Neutron Diffractionmentioning

confidence: 99%

Kinetic-arrest-induced phase coexistence and metastability in(Mn,Fe)2(P,Si)

et al. 2016

Self Cite

View full text Add to dashboard Cite

Neutron diffraction, Mössbauer spectroscopy, magnetometry, and in-field x-ray diffraction are employed to investigate the magnetoelastic phase transition in hexagonal (Mn,Fe) 2 (P,Si) compounds. (Mn,Fe) 2 (P,Si) compounds undergo for certain compositions a second-order paramagnetic (PM) to a spin-density-wave (SDW) phase transition before further transforming into a ferromagnetic (FM) phase via a first-order phase transition. The SDW-FM transition can be kinetically arrested, causing the coexistence of FM and untransformed SDW phases at low temperatures. Our in-field x-ray diffraction and magnetic relaxation measurements clearly reveal the metastability of the untransformed SDW phase. This unusual magnetic configuration originates from the strong magnetoelastic coupling and the mixed magnetism in hexagonal (Mn,Fe) 2 (P,Si) compounds.

show abstract

Short-range magnetic correlations and spin dynamics in the paramagnetic regime of(Mn,Fe)2(P,Si)

Cited by 27 publications

References 30 publications

Possible gapless spin liquid in the rare-earth kagome lattice magnet Tm3Sb3Zn2O14

Possible gapless spin liquid in the rare-earth kagome lattice magnet Tm3Sb3Zn2O14

Spin correlations in (Mn,Fe)2(P,Si) magnetocaloric compounds above Curie temperature

Kinetic-arrest-induced phase coexistence and metastability in(Mn,Fe)2(P,Si)

Contact Info

Product

Resources

About