The shift of the ferromagnetic curie temperature in EuS by hydrostatic pressure

Schwob, P.; Vogt, O.

doi:10.1016/0375-9601(67)90413-6

Cited by 32 publications

(7 citation statements)

References 9 publications

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“…The values of a c where the AF → F transition takes place are close in EuTe and EuSe (6.25 and 6.15Å, respectively). The rapid increase of T C in EuTe is comparable to that measured in EuSe and EuS [4], [5]. However in EuTe, T N remains close to 10 K at a = a c , whereas in EuSe, the corresponding temperature is much lower (4.5 K).…”

Section: C) S E a R C H F O R M A G N E T I C O R D E R I N T H E C Ssupporting

confidence: 74%

“…Experiments under applied pressure are a direct way to vary the lattice parameter continuously, without changing the chemical content. As expected from the above scheme, in EuSe even a small applied pressure (0.5 GPa) stabilizes the ferromagnetic state [4], and the Curie temperatures of EuSe, EuS and EuO increase with pressure [4], [5]. Surprisingly, the Néel points of EuTe and EuSe are quite different from each other (10 K and 5 K, respectively) but remain almost pressure invariant.…”

supporting

confidence: 61%

“…•, •, M correspond to the ordering temperatures in the AF NSNS, AF NNSS and F phases, respectively. b) The slopes of the ordering temperatures vs. lattice constant in EuTe (our data) and other members of the EuX family (from[4],[5] [14]). …”

mentioning

confidence: 88%

See 2 more Smart Citations

Direct high-pressure gas-phase oxidation of natural gas to methanol and other oxygenates

Arutyunov¹,

Basevich²,

Vedeneev³

1996

Russ. Chem. Rev.

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PACS. 75.25+z -Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source X-ray scattering, etc.). PACS. 75.30Kz -Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.). PACS. 75.50Pp -Magnetic semiconductors.Abstract. -We studied magnetic order in EuTe by neutron diffraction under applied pressures up to 17 GPa. In the range P < 11GPa, the original antiferromagnetic (AF) phase with a propagation vector k = 1/2 1/2 1/2 transforms into another AF one with k = 1/4 1/4 1/4, then into a ferromagnetic phase. The observed sequence of magnetic transitions qualitatively confirms the proposed models of competing ferromagnetic and antiferromagnetic interactions in the EuX family (X = O, S, Se, Te). Nevertheless, a quantitative analysis of our data shows some differences with microscopic models. The structural transition from NaCl to CsCl phase occurs between 13 and 17 GPa. Interestingly, we do not observe any long-range magnetic order in the high-pressure CsCl phase.

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Section: C) S E a R C H F O R M A G N E T I C O R D E R I N T H E C Ssupporting

confidence: 74%

supporting

confidence: 61%

See 1 more Smart Citation

Direct high-pressure gas-phase oxidation of natural gas to methanol and other oxygenates

Arutyunov¹,

Basevich²,

Vedeneev³

1996

Russ. Chem. Rev.

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“…The obtained magnetic moment

μ_{Eu}^{theory} = 6.93 {normalμ}_{normalB}

and the Curie temperature

T_{normalC}^{theory} = 15.3 K

are in good agreement with experimental results,

μ_{Eu}^{exp} \approx 7 {normalμ}_{normalB}

and

T_{normalC}^{exp} = 16.3 K

, respectively. [ 55 ]…”

Section: Ab Initio Calculationsmentioning

confidence: 99%

Structure and Magnetism of EuS on Bi₂Se₃(0001)

Meyerheim

Ernst

Mohseni

et al. 2020

Physica Status Solidi (b)

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The rocksalt‐type ferromagnetic (FM) insulator EuS (bulk TC = 17 K) grown on Bi2Se3 with well‐matched (111) plane of the film and (0001) plane of the substrate is studied. The system may feature magnetic proximity effect breaking the time‐reversal symmetry and opening a bandgap in the metallic topologically protected surface state of Bi2Se3. The experimental X‐ray diffraction studies are combined with ab initio calculations to resolve contradictory results concerning the enhancement of the TC up to 300 K and the degree of induced magnetization in the system. It is concluded that previous studies relied on idealized and unconfirmed structure models. Herein, it is shown by surface X‐ray diffraction (SXRD) with ab initio calculations that a two double layer‐thick EuS film grows with a sharp interface and without chemical intermixing in a single domain state in an FCC‐type stacking on the Bi2Se3(0001) surface in which the topmost layer is metallic, thereby lifting polarity. A large pz‐orbital‐derived top‐layer sulfur magnetic moment of 0.6 μB is found, whereas for europium, μEu = 6.9 μB throughout the film is found. No magnetization within the first Bi2Se3 quintuple layer is found. The calculation of the exchange parameters Jij indicates a complex FM and antiferromagnetic ordering between europium and sulfur with a maximum Néel temperature of 226 K.

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“…At first, the magnetism may survive up to room temperature [27], even though the Curie temperature of pure EuS is only 17 K [31]. Second, in spite of in-plane magnetic anisotropy of the bulk EuS, out-of-plane magnetization was observed for EuS-Bi 2 Se 3 [26,27].…”

mentioning

confidence: 99%

Understanding the Giant Enhancement of Exchange Interaction in Bi2Se3−EuS Heterostructures

et al. 2017

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The shift of the ferromagnetic curie temperature in EuS by hydrostatic pressure

Cited by 32 publications

References 9 publications

Direct high-pressure gas-phase oxidation of natural gas to methanol and other oxygenates

Direct high-pressure gas-phase oxidation of natural gas to methanol and other oxygenates

Structure and Magnetism of EuS on Bi₂Se₃(0001)

Understanding the Giant Enhancement of Exchange Interaction in Bi2Se3−EuS Heterostructures

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The shift of the ferromagnetic curie temperature in EuS by hydrostatic pressure

Cited by 32 publications

References 9 publications

Direct high-pressure gas-phase oxidation of natural gas to methanol and other oxygenates

Direct high-pressure gas-phase oxidation of natural gas to methanol and other oxygenates

Structure and Magnetism of EuS on Bi2Se3(0001)

Understanding the Giant Enhancement of Exchange Interaction in Bi2Se3−EuS Heterostructures

Contact Info

Product

Resources

About

Structure and Magnetism of EuS on Bi₂Se₃(0001)