X phase of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mi mathvariant="normal">MnWO</mml:mi></mml:mrow><mml:mn>4</mml:mn></mml:msub></mml:math>

Urcelay-Olabarría, I.; Ressouche, E.; Mukhin, A. A.; Ivanov, V. Yu.; Kadomtseva, A. M.; Popov, Yu. F.; Vorob’ev, G. P.; Balbashov, A. M.; García-Muñoz, J. L.; Skumryev, V.

doi:10.1103/physrevb.90.024408

Phys. Rev. B

2014

DOI: 10.1103/physrevb.90.024408

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X phase ofMnWO4

I. Urcelay-Olabarría

E. Ressouche

A. A. Mukhin

et al.

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Cited by 21 publications

(37 citation statements)

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“…Further doping above x = 0.075 changes the spin structure into another spiral configuration (AF5 phase) accompanied by polarization flipping into the ac plane [35,37]. When the Co concentration goes beyond x = 0.15, the polarization changes back to the b axis, and the magnetic structure forms a conical configuration with two modulation vectors of both AF2 spiral and AF4 collinear components [35,36]. To understand the successive changes of magnetic and electric polarization states, Liang et al discussed the coupling between polarization and magnetic order parameters, which is a high order term in the free energy expansion [39].…”

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confidence: 99%

“…The most prominent change happens at x = 0.135, where the pressure induces a spin-flop transition. At 1.5 GPa, commensurate AF4 peaks persist down to the lowest temperature, and the collinear AF1 at intermediate temperature and low-T AF5 phase are replaced by the conical spin order normally occurring at higher Co-doping at ambient pressure [35,36]. In the case of x = 0.17, although the magnetic structure remains the same all the way to P = 1.5 GPa, the pressure is gradually enhancing the onset temperature of the AF4 phase and re- ducing the ordered moment of the spiral AF2 component, an effect similar as increasing the cobalt concentration.…”

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confidence: 99%

“…Besides, Co 2+ also introduces a different chemical pressure due to its smaller ionic size, which is known as an important tuning parameter in magnetically frustrated systems. Earlier pressure measurements on pure MnWO 4 have revealed the evolution of the crystal structure and a phase transition to triclinic symmetry around [18][19][20][21][22][23][24][25]. But the…”

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confidence: 99%

“…Among chemical substitutions with either magnetic or nonmagnetic ions, the Co-doped system exhibits the most complex magnetic properties [32][33][34][35][36][37][38]. Only a few percent of cobalt suppresses the AF1 magnetic structure and stabilizes the AF2 phase.…”

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confidence: 99%

“…The system is susceptible to different perturbations including magnetic field [13,[22][23][24][25] and chemical doping [26][27][28][29][30][31].…”

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confidence: 99%

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Pressure effects on magnetic ground states in cobalt-doped multiferroicMn1−xCoxWO4

Wang

Chi

et al. 2016

Phys. Rev. B

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Using ambient pressure x-ray and high pressure neutron diffraction, we studied the pressure effect on structural and magnetic properties of multiferroic Mn1−xCoxWO4 single crystals (x = 0, 0.05, 0.135 and 0.17), and compared it with the effects of doping. Both Co doping and pressure stretch the Mn-Mn chain along the c direction. At high doping level (x = 0.135 and 0.17), pressure and Co doping drive the system in a similar way and induce a spin-flop transition for the x = 0.135 compound. In contrast, magnetic ground states at lower doping level (x = 0 and 0.05) are robust against pressure but experience a pronounced change upon Co substitution. As Co introduces both chemical pressure and magnetic anisotropy into the frustrated magnetic system, our results suggest the magnetic anisotropy is the main driving force for the Co induced phase transitions at low doping level, and chemical pressure plays a more significant role at higher Co concentrations.PACS numbers: 75.30. Kz,75.85.+t There has been long pursuit for materials showing coupled magnetic and electric properties, for both technological potential and fundamental scientific interest. Inspired by the magnetic control of ferroelectric polarization in TbMnO 3 [1], considerable interest has focused on the "type II" multiferroic materials where the ferroelectricity has a magnetic origin [2][3][4][5][6]. It can be realized through spin current or inverse Dzyaloshinskii-Moriya interaction [7][8][9], exchange striction [10], and p-d hybridization mechanism [11,12]. Magnetic frustration is a key ingredient in these materials where the competing interactions often lead to noncollinear spin structure and delicately balanced ground states, and the corresponding electric or magnetic properties can be easily tuned by external perturbations.The multiferroic MnWO 4 is a classic example of frustrated magnets with coupled electric and magnetic properties [13][14][15]. It crystallizes in the monoclinic wolframite structure (space group P 2/c). The edge-sharing MnO 6 octahedra form zigzag chains along the c axis [ Fig. 1 (a)]. When cooling, MnWO 4 undergoes successive magnetic transitions [16]. The incommensurate (ICM) AF3 phase orders below 13.5 K, forming a collinear sinusoidal structure with a T -dependent magnetic wavevector. An ICM AF2 phase is stabilized between 7 K < T < 12.6 K, with the wavevector locked at q = (0.214, 0.5, −0.457), hosting a spiral magnetic structure that breaks the inversion symmetry [17] and a spontaneous electric polarization along the b axis. Below 7 K, the electric polarization disappears simultaneously with the AF2 phase. The commensurate AF1 phase sets in with wavevector q = (0.25, 0.5, −0.5), forming a collinear ↑↑↓↓ configuration along the chain.Both experimental [18,19] and theoretical [20,21] studies have revealed sizable long-range magnetic interactions. The system is susceptible to different perturbations including magnetic field [13,[22][23][24][25] and chemical doping [26][27][28][29][30][31].Among chemical substitutions with either...

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confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

“…The system is susceptible to different perturbations including magnetic field [13,[22][23][24][25] and chemical doping [26][27][28][29][30][31].…”

mentioning

confidence: 99%

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Pressure effects on magnetic ground states in cobalt-doped multiferroicMn1−xCoxWO4

Wang

Chi

et al. 2016

Phys. Rev. B

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A new polar symmetry of huebnerite (MnWO4) with ferrodistortive domains

Park

Mihailova

Pedersen

et al. 2015

Journal of Magnetism and Magnetic Materials

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Magnetic properties of the In-doped MnWO4-type solid solutions Mn1−3In2□ WO4 [□=vacancy; 0≤x≤0.11]

Gattermann

Benka

Bauer

et al. 2016

Journal of Magnetism and Magnetic Materials

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X phase ofMnWO4

Cited by 21 publications

References 24 publications

Pressure effects on magnetic ground states in cobalt-doped multiferroicMn1−xCoxWO4

Pressure effects on magnetic ground states in cobalt-doped multiferroicMn1−xCoxWO4

A new polar symmetry of huebnerite (MnWO4) with ferrodistortive domains

Magnetic properties of the In-doped MnWO4-type solid solutions Mn1−3In2□ WO4 [□=vacancy; 0≤x≤0.11]

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