Spin reorientation behavior in YMn1−xMxO3 (M=Ti, Fe, Ga; x=0, 0.1)

Sharma, Neha; Das, Amitabh; Prajapat, C. L.; Meena, Sher Singh

doi:10.1016/j.jmmm.2013.08.021

Cited by 28 publications

(17 citation statements)

References 41 publications

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“…Munoz et al [20] has shown that there are six representations (Γ1-Γ6) that are possible in YMnO 3 type hexagonal structure. We fi nd that the ground state of YMnO 3 is best described by a linear combination of Γ3 and Γ4 [3] and this result is in agreement with those reported earlier. Figure 3a shows the magnetic structure projected in the a-b plane of YMnO 3 .…”

Section: -D Magnetic Correlations In the Kagomé Layered Compound Ybasupporting

confidence: 92%

“…The neutron powder diffractometers and the polarized neutron spectrometer at the Dhruva reactor, Trombay have been used extensively for magnetic studies of several class of important materials, such as ferrites, perovskites, magnetic shape memory alloys, low dimensional magnetic oxides, molecular magnetic compounds, intermetallic alloys and compounds [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. In present article, we report a few examples of such recent investigations [2,3,11,19].…”

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confidence: 99%

“…Inset (b) shows the variation of magnetic moment as a function of temThe magnetic structures of YMn 1-x M x O 3 (M = Ti, Fe; x = 0, 0.1) projected in the a-b plane[3].…”

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confidence: 99%

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Magnetic ordering: Neutron diffraction and depolarization studies at Dhruva Reactor

et al. 2014

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Section: -D Magnetic Correlations In the Kagomé Layered Compound Ybasupporting

confidence: 92%

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confidence: 99%

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Magnetic ordering: Neutron diffraction and depolarization studies at Dhruva Reactor

et al. 2014

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“…In recent years, a few studies have been reported on the influence of transition metal (TM) elements doping at Mn-site in hexagonal manganite bulks [5, 6, 7, 8, 9, 10, 11, 12, 13], in which most of doping concentrations were kept about 10% to preserve the phase isostructural. For examples, N. Sharma et al.…”

Section: Introductionmentioning

confidence: 99%

Effect of transition metal (TM) doping on structural and magnetic properties in hexagonal YMn0.917TM0.083O3 systems

Chen

Wang

Zhu

et al. 2018

Heliyon

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Suitable TM doping at the Mn site is an important access to manipulate magnetic properties of hexagonal YMnO3, however, it has not yet been systematically explored how the strength of antiferromagnetic interactions and the magnetic transition temperatures (TN) are modified in the doping YMn0.917TM0.083O3 systems. In the work, we have performed first-principles calculations to study the effect of TM doping on the structural and magnetic properties of hexagonal YMn0.917TM0.083O3 bulks; the results are combined with the available experimental results. The calculated results reveal that the planar TM-O bonds and O-TM-O angles of TMO5 bipyramid are both prominent structural features for the transformations of magnetic properties. We have also predicted the Ti, V, Cr and Fe doping effects on magnetic properties and further analyzed the TM electronic structures of TMO5 bipyramid in the YMn0.917TM0.083O3(001)/MgO(001) film configurations, which could provide more understanding towards the designing of new generation multifunctional devices.

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“…Recently, Sharma et al 15 carried out a comparative study by Ti 4+ (d 0 ), Fe 3+ (d 5 ), and Ga 3+ (d 10 ) (only 10%) doping at the Mn-site. Below T N ~75K, the magnetic structure of YMnO 3 was described as a linear combination of irreducible representations Γ 3 and Γ 4 , the ratio of which changed with lowering the temperature.…”

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Disorder-driven spin-reorientation in multiferroic h-YMn1−xFexO3

Namdeo

Rao

Kaushik

et al. 2014

Journal of Applied Physics

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Magnetic structure evolution of multiferroic hexagonal YMn 1-x Fe x O 3 (x= 0, 0.05, and 0.1) has been studied by carrying out detailed temperature-dependent neutron diffraction at zero and 5T fields.Thermodynamic data confirm antiferromagnetic ordering at T N in all the compositions. Our sub-T N neutron diffraction results assign the magnetic structure of pure YMnO 3 to Γ 1 irreducible representation. Over the perturbative-doping range, magnetic structure changes via Γ 1 +Γ 2 for YMn 0.95 Fe 0.05 O 3 on to Γ 2 for YMn 0.9 Fe 0.1 O 3 , as the maiden compositional analogue of spinreorientation; its occurrence in temperature-domain already reported for several manganites.Moreover, while the large thermal isostructural changes observed above T N are subdued in the ordered state, small alterations by the applied 5T-field are relatively uniform across, confirming strong magneto-elastic nature of the system. Decrease of the ordered magnetic moment (µ ord ) and planar magnetic frustration noted with Fe-doping is enhanced by the applied field; apparently through canting.Keywords: Multiferroics, Magneto-elasticity, Frustrated Antiferromagnet, Neutron Diffraction. PACS: 75.50.Ee, 75.85.+t , 61.05.fm, 75.75 2Materials that possess coexistent magnetic and electrical orderings in single phase are known as Multiferroics. 1 Hexagonal YMnO 3 is a member of their special class known as geometrically frustrated multiferroics, and is one of the most intensively studied h-RMnO 3 . 2 It undergoes ferroelectric (FE) transition at T C ~ 900K and antiferromagnetic (AFM) ordering at T N ~70K. [3][4] The crystal structure of h-YMnO 3 consists of alternating layers of MnO 5 trigonal bipyramids. These bipyramids (in trimer-combinations, sharing a common planar Oxygen) are corner-linked in the abplane to form a triangular lattice, and are separated from one another along the c-axis by the planes of Y-ions. 5 The geometric effect of buckling of the trimerized MnO5-bipyramids is accompanied by the inversion-symmetry-breaking displacements of Y-layers, originating the ferroelectric polarization. 6 Regarding the magnetic structure, below T N the Mn 3+ moments order in the a-b plane, and form a 2D non-collinear spin structure, characterized by an angle of 120 o between the neighbouring spins. [7][8][9] Consequent to the 2D magnetism and triangular lattice, the magnetic structure of YMnO 3 is frustrated, characterized by the frustration factor f = |Θ CW |/T N , found to be as large as 7.8 for YMnO 3 . 10 Here, Θ CW is the (negative) intercept on the temperature-axis of the (interpolated) high-temperature T-linear (Curie-Weiss) inverse susceptibility of the independent-spins. The antiferromagnetic (AFM) order is governed by the in-plane Mn-O-Mn super-exchange interaction, whereas the Mn-O-O-Mn supersuper-exchange interaction between the stacked triangular planes is about two order of magnitude weaker. This weak inter-layer (z=0 and z=1/2), 4,7,11 configuration is the one that differentiates among the several magnetic structures proposed f...

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Spin reorientation behavior in YMn1−xMxO3 (M=Ti, Fe, Ga; x=0, 0.1)

Cited by 28 publications

References 41 publications

Magnetic ordering: Neutron diffraction and depolarization studies at Dhruva Reactor

Magnetic ordering: Neutron diffraction and depolarization studies at Dhruva Reactor

Effect of transition metal (TM) doping on structural and magnetic properties in hexagonal YMn0.917TM0.083O3 systems

Disorder-driven spin-reorientation in multiferroic h-YMn1−xFexO3

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