Coexistence of Antiferromagnetic and Spin Cluster Glass Order in the Magnetoelectric Relaxor Multiferroic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>PbFe</mml:mi><mml:mn>0.5</mml:mn></mml:msub><mml:msub><mml:mi>Nb</mml:mi><mml:mn>0.5</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>

Kleemann, W.; Shvartsman, Vladimir V.; Borisov, Pavel; Kania, A.

doi:10.1103/physrevlett.105.257202

Cited by 165 publications

(159 citation statements)

References 24 publications

Supporting

Mentioning

139

Contrasting

Unclassified

Order By: Relevance

“…The chemical structures of both materials are essentially identical 18,19 . Despite the strong structural similarities, magnetic properties of PFT are not very well understood in contrast to the generally accepted antiferromagnetic (∼143 K) and spinglass (12 K) transitions in PFN 9,[20][21][22] . One of the challenges with PFT is that indications of the magnetic transitions in dc magnetic susceptibility are strongly sample-dependent.…”

Section: Introductionmentioning

confidence: 95%

Magnetic short- and long-range order inPbFe0.5Ta0.5O3

et al. 2014

View full text Add to dashboard Cite

PbFe 1/2 Ta 1/2 O3 belongs to the family of PbB x B 1−x O3 which have inherent chemical disorder at the B-site. Due to this disorder, a complex magnetic phase diagram is expected in the material. In this paper, we report experimental results of magnetic properties of PFT through macroscopic characterization, neutron scattering and Mössbauer spectroscopy techniques. With these results we show for the first time that PbFe 1/2 Ta 1/2 O3 behaves very similar to PbFe 1/2 Nb 1/2 O3 , i.e, it undergoes AF transition at 153 K and has a spinglass transition at 10 K, below which the antiferromagnetism coexists with spinglass. We suggest that the mechanism which is responsible for such a non-trivial ground state can be explained by a speromagnet-like spin arrangement similar to the one proposed for PbFe 1/2 Nb 1/2 O3 .

show abstract

Section: Introductionmentioning

confidence: 95%

Magnetic short- and long-range order inPbFe0.5Ta0.5O3

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The Fe +3 ions are known to cluster in pure PbFe 1/2 Nb 1/2 O 3 and PbFe 1/2 Ta 1/2 , which is responsible for the relatively high magnetic ordering temperature for only 15-20 % Fe-occupation of the B-site in our specimens. 43,44 The magnetization M(T) shows only one divergence (near 50 K) with no sign of a second phase or phase transition. It is worth mentioning that with increase in PFT contents (x=0.6) this system does not show any increased magnetic ordering; x= 0.4 possess low magnetization compare to x= 0.3.…”

Section: E Magnetization Studymentioning

confidence: 99%

Symmetries and multiferroic properties of novel room-temperature magnetoelectrics: Lead iron tantalate – lead zirconate titanate (PFT/PZT)

et al. 2011

View full text Add to dashboard Cite

Mixing 60-70% lead zirconate titanate with 40-30% lead iron tantalate produces a single-phase, low-loss, room-temperature multiferroic with magnetoelectric coupling: (PbZr0.53Ti0.47O3) (1-x)- (PbFe0.5Ta0.5O3)x. The present study combines x-ray scattering, magnetic and polarization hysteresis in both phases, plus a second-order dielectric divergence (to epsilon = 6000 at 475 K for 0.4 PFT; to 4000 at 520 K for 0.3 PFT) for an unambiguous assignment as a C2v-C4v (Pmm2-P4mm) transition. The material exhibits square saturated magnetic hysteresis loops with 0.1 emu/g at 295 K and saturation polarization Pr = 25 μC/cm2, which actually increases (to 40 μC/cm2) in the high-T tetragonal phase, representing an exciting new room temperature oxide multiferroic to compete with BiFeO3. Additional transitions at high temperatures (cubic at T>1300 K) and low temperatures (rhombohedral or monoclinic at T<250 K) are found. These are the lowest-loss room-temperature multiferroics known, which is a great advantage for magnetoelectric devices

show abstract

“…The basic magnetic properties of PFN were reported many years ago [8] but because of their complexity they were not up to now consistently interpreted. Above the Néel temperature T N ≈ 145 K PFN is a paramagnet (PM) and below T N this compound seems to represent a mixture of the long-range antiferromagnetic (AFM) and superantiferromagnetic (SAF) Fe 3+ clusters [4]. At low temperatures a cluster glass (CG) state is observed with a freezing temperature near 10 K [1,2,4,7].…”

Section: Introductionmentioning

confidence: 99%

Details of Magnetic Properties in Pb(Fe_{1/2}Nb_{1/2})O_{3}

Maryško¹,

Laguta²,

Raevski³

2014

Acta Phys. Pol. A

View full text Add to dashboard Cite

For Pb(Fe0.5Nb0.5)O3 the χ(T ) and m(H) measurements up to 70 kOe were performed with the aim to estimate the antiferromagnetic (AFM) and superantiferromagnetic (SAF) contribution to χ(T ). Below TN the increase of χ(T ) is attributed to a small part of Fe 3+ ions in the SAF clusters. For high elds the suppression of the AFM and enhancement of the SAF susceptibility was observed. An inection point of the m(H) curves below the Néel point suggests the presence of a spin reorientation process connected with the AFM phase.

show abstract

Coexistence of Antiferromagnetic and Spin Cluster Glass Order in the Magnetoelectric Relaxor MultiferroicPbFe0.5Nb0.5O3

Cited by 165 publications

References 24 publications

Magnetic short- and long-range order inPbFe0.5Ta0.5O3

Magnetic short- and long-range order inPbFe0.5Ta0.5O3

Symmetries and multiferroic properties of novel room-temperature magnetoelectrics: Lead iron tantalate – lead zirconate titanate (PFT/PZT)

Details of Magnetic Properties in Pb(Fe_{1/2}Nb_{1/2})O_{3}

Contact Info

Product

Resources

About