Mihai Sturza
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View article: Electrically modulated light-emitting device driven by resonant and antiresonant tunneling between Cr <sub>2</sub> Ge <sub>2</sub> Te <sub>6</sub> electrodes
Electrically modulated light-emitting device driven by resonant and antiresonant tunneling between Cr <sub>2</sub> Ge <sub>2</sub> Te <sub>6</sub> electrodes Open
Exploring the electron tunneling mechanisms in diverse materials systems constitutes a versatile strategy for tailoring the properties of optoelectronic devices. In this domain, bipolar vertical tunneling junctions composed of van der Waal…
View article: Electrically modulated light-emitting diodes driven by resonant and antiresonant tunneling between Cr$_2$Ge$_2$Te$_6$ electrodes
Electrically modulated light-emitting diodes driven by resonant and antiresonant tunneling between Cr$_2$Ge$_2$Te$_6$ electrodes Open
Exploring the electron tunneling mechanisms in diverse materials systems constitutes a versatile strategy for tailoring the properties of optoelectronic devices. In this domain, bipolar vertical tunneling junctions composed of van der Waal…
View article: Spin-phonon coupling and isotope-related pseudo-molecule vibrations in layered Cr$_2$Ge$_2$Te$_6$ ferromagnet
Spin-phonon coupling and isotope-related pseudo-molecule vibrations in layered Cr$_2$Ge$_2$Te$_6$ ferromagnet Open
The vibrational structure of chromium germanium telluride (Cr$_2$Ge$_2$Te$_6$, CGT) is investigated and a strong spin-phonon coupling is revealed. The measured high-resolution Raman scattering (RS) spectra are composed of the 10 Raman-acti…
View article: Multicaloric effects and magnetostructural coupling in the Cr <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si13.svg" display="inline" id="d1e416"> <mml:msub> <mml:mrow/> <mml:mrow> <mml:mn>2</mml:mn> </mml:mrow> </mml:msub> </mml:math> Ge <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si13.svg" display="inline" id="d1e424"> <mml:msub> <mml:mrow/> <mml:mrow> <mml:mn>2</mml:mn> </mml:mrow> </mml:msub> </mml:math> Te <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si15.svg" display="inline" id="d1e432"> <mml:msub> <mml:mrow/> <mml:mrow> <mml:mn>6</mml:mn> </mml:mrow> </mml:msub> </mml:math> van der Waals crystal
Multicaloric effects and magnetostructural coupling in the Cr Ge Te van der Waals crystal Open
View article: On the growth and characterization of SmOFe<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si205.svg" display="inline" id="d1e9033"><mml:msub><mml:mrow/><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:math>Co<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si206.svg" display="inline" id="d1e9045"><mml:msub><mml:mrow/><mml:mrow><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:math>As single crystals
On the growth and characterization of SmOFeCoAs single crystals Open
In this work we report the crystal growth of SmOFe1−xCoxAs single crystals with Co content 0≤x≤0.25 via the solid-state single crystal growth method at ambient pressure. The centrepiece of this method is to trigger the abnormal grain growt…
View article: On the Growth and Characterization of Smofe1− X Co X as Single Crystals
On the Growth and Characterization of Smofe1− X Co X as Single Crystals Open
View article: Bulk and Single Crystal Growth Progress of Iron-Based Superconductors (FBS): 1111 and 1144
Bulk and Single Crystal Growth Progress of Iron-Based Superconductors (FBS): 1111 and 1144 Open
The discovery of iron-based superconductors (FBS) and their superconducting properties has generated huge research interest and provided a very rich physics high Tc family for fundamental and experimental studies. The 1111 (REFeAsO, RE = R…
View article: Erratum: Quasi-two-dimensional magnetic correlations in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Ni</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">P</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">S</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math> probed by <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">P</mml:mi><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>31</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math> NMR [Phys. Rev. B <b>102</b>, 064429 (2020)]
Erratum: Quasi-two-dimensional magnetic correlations in probed by NMR [Phys. Rev. B <b>102</b>, 064429 (2020)] Open
Received 23 August 2021DOI:https://doi.org/10.1103/PhysRevB.104.099901©2021 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasAntiferromagnetismCrystal structureMagnetic interactionsPhysical Systems2-dimensional system…
View article: Magnetic interactions in the tripod kagome antiferromagnet <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Mg</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Gd</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>Sb</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>14</mml:mn></mml:msub></mml:mrow></mml:math> probed by static magnetometry and high-field ESR spectroscopy
Magnetic interactions in the tripod kagome antiferromagnet probed by static magnetometry and high-field ESR spectroscopy Open
We report an experimental study of the static magnetization $M(H,T)$ and\nhigh-field electron spin resonance (ESR) of polycrystalline \\MgGd, a\nrepresentative member of the newly discovered class of the so-called\ntripod-kagome antiferrom…
View article: CSD 1994300: Experimental Crystal Structure Determination
CSD 1994300: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: CSD 1791416: Experimental Crystal Structure Determination
CSD 1791416: Experimental Crystal Structure Determination Open
View article: Quasi-two-dimensional magnetic correlations in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Ni</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">P</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">S</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math>probed by<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">P</mml:mi><mml:mprescripts/><mml:none/><mml:mn>31</mml:mn></mml:mmultiscripts></mml:math>NMR
Quasi-two-dimensional magnetic correlations inprobed byNMR Open
Detailed ${}^{31}$P nuclear magnetic resonance (NMR) measurements are\npresented on well-characterized single crystals of antiferromagnetic van der\nWaals Ni$_2$P$_2$S$_6$. An anomalous breakdown is observed in the\nproportionality of the …
View article: CSD 1950530: Experimental Crystal Structure Determination
CSD 1950530: Experimental Crystal Structure Determination Open
View article: Discovery, Crystal Growth, and Characterization of Garnet Eu<sub>2</sub>PbSb<sub>2</sub>Zn<sub>3</sub>O<sub>12</sub>
Discovery, Crystal Growth, and Characterization of Garnet Eu<sub>2</sub>PbSb<sub>2</sub>Zn<sub>3</sub>O<sub>12</sub> Open
Single crystal specimens of previously unknown garnet Eu 2 PbSb 2 Zn 3 O 12 were grown in a reactive PbO:PbF 2 flux medium. The crystals were characterized by a combination of X‐ray crystallography, magnetization measurements, and the opti…
View article: Enormous electron-electron scattering in the filled-cage cubic compound <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi mathvariant="normal">B</mml:mi><mml:msub><mml:mi mathvariant="normal">a</mml:mi><mml:mn>10</mml:mn></mml:msub><mml:mi mathvariant="normal">T</mml:mi><mml:msub><mml:mi mathvariant="normal">i</mml:mi><mml:mn>24</mml:mn></mml:msub><mml:mi mathvariant="normal">B</mml:mi><mml:msub><mml:mi mathvariant="normal">i</mml:mi><mml:mn>39</mml:mn></mml:msub></mml:mrow></mml:math>
Enormous electron-electron scattering in the filled-cage cubic compound Open
Cubic intermetallic compound Ba10Ti24Bi39 has a Ba6Bi16 polyhedral cage with a Bi guest atom encapsulated inside. The compound can be formulated as Ba5Ti12Bi$_{19…
View article: Magnetic interactions in the tripod-kagome antiferromagnet Mg$_{2}$Gd$_{3}$Sb$_{3}$O$_{14}$
Magnetic interactions in the tripod-kagome antiferromagnet Mg$_{2}$Gd$_{3}$Sb$_{3}$O$_{14}$ Open
We report an experimental study of the static magnetization $M(H,T)$ and high-field electron spin resonance (ESR) of polycrystalline Mg$_{2}$Gd$_{3}$Sb$_{3}$O$_{14}$, a representative member of the newly discovered class of the so-called t…
View article: Thermally activated mobility of lithium ions in Li$_{1-x}$CuSbO$_4$ as studied by $^7$Li NMR
Thermally activated mobility of lithium ions in Li$_{1-x}$CuSbO$_4$ as studied by $^7$Li NMR Open
View article: Engineering Kitaev exchange in stacked iridate layers: impact of inter-layer species on in-plane magnetism
Engineering Kitaev exchange in stacked iridate layers: impact of inter-layer species on in-plane magnetism Open
Electrostatic effects involving the inter-layer species are important: the largest Kitaev interactions comewith a more isotropic distribution of inter-layer cations around a given ligand.
View article: Observation of heavy spin-orbit excitons propagating in a nonmagnetic background: The case of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mrow><mml:mo>(</mml:mo><mml:mi>Ba</mml:mi><mml:mo>,</mml:mo><mml:mi>Sr</mml:mi><mml:mo>)</mml:mo></mml:mrow><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>YIrO</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math>
Observation of heavy spin-orbit excitons propagating in a nonmagnetic background: The case of Open
We present a combined experimental and theoretical study of the elementary magnetic excitations in Ba2YIrO6 and Sr2YIrO6 - the two most intensively discussed candidates for a new type of magnetic instability caused by exciton condensation.…
View article: Signatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate LiCuSbO4
Signatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate LiCuSbO4 Open
Modern theories of quantum magnetism predict exotic multipolar states in weakly interacting strongly frustrated spin-1/2 Heisenberg chains with ferromagnetic nearest neighbor (NN) inchain exchange in high magnetic fields. Experimentally th…
View article: Copper Vacancies and Heavy Holes in the Two-Dimensional Semiconductor KCu<sub>3–<i>x</i></sub>Se<sub>2</sub>
Copper Vacancies and Heavy Holes in the Two-Dimensional Semiconductor KCu<sub>3–<i>x</i></sub>Se<sub>2</sub> Open
The two-dimensional material KCu3–xSe2 was synthesized using both a K2Se3 flux and directly from the elements. It crystallizes in the CsAg3S2 structure (monoclinic space gro…
View article: Iridium double perovskite <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Sr</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>YIrO</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math>: A combined structural and specific heat study
Iridium double perovskite : A combined structural and specific heat study Open
Recently, the iridate double perovskite Sr$_2$YIrO$_6$ has attracted considerable attention due to the report of unexpected magnetism in this Ir$^{5+}$ (5d$^4$) material, in which according to the J$_{eff}$ model, a non-magnetic ground sta…
View article: Charge Density Wave in the New Polymorphs of <i>RE</i><sub>2</sub>Ru<sub>3</sub>Ge<sub>5</sub> (<i>RE</i> = Pr, Sm, Dy)
Charge Density Wave in the New Polymorphs of <i>RE</i><sub>2</sub>Ru<sub>3</sub>Ge<sub>5</sub> (<i>RE</i> = Pr, Sm, Dy) Open
A new polymorph of the RE2Ru3Ge5 (RE = Pr, Sm, Dy) compounds has been grown as single crystals via an indium flux. These compounds crystallize in tetragonal space group P4/mnc with the Sc2Fe…
View article: Magnetotransport and de Haas–van Alphen measurements in the type-II Weyl semimetal <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>TaIrTe</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:math>
Magnetotransport and de Haas–van Alphen measurements in the type-II Weyl semimetal Open
The layered ternary compound TaIrTe$_4$ has been predicted to be a type-II\nWeyl semimetal with only four Weyl points just above the Fermi energy.\nPerforming magnetotransport measurements on this material we find that the\nresistivity doe…
View article: Evidence for a magnetic field-induced "hidden" spin nematic phase in the frustrated and anisotropic spin-chain cuprate LiCuSbO$_4$
Evidence for a magnetic field-induced "hidden" spin nematic phase in the frustrated and anisotropic spin-chain cuprate LiCuSbO$_4$ Open
Modern theories of quantum magnetism predict exotic multipolar states in weakly interacting strongly frustrated spin-1/2 Heisenberg chains with ferromagnetic nearest neighbor (NN) inchain exchange in high magnetic fields. Experimentally th…
View article: La<sub>1–<i>x</i></sub>Bi<sub>1+<i>x</i></sub>S<sub>3</sub> (<i>x</i> ≈ 0.08): An n-Type Semiconductor
La<sub>1–<i>x</i></sub>Bi<sub>1+<i>x</i></sub>S<sub>3</sub> (<i>x</i> ≈ 0.08): An n-Type Semiconductor Open
The new bismuth chalcogenide La(0.92)Bi(1.08)S3 crystallizes in the monoclinic space group C2/m with a = 28.0447(19) Å, b = 4.0722(2) Å, c = 14.7350(9) Å, and β = 118.493(5)°. The structure of La(0.92)Bi(1.08)S3 is built of NaCl-type Bi2S5…
View article: Cesium vacancy ordering in phase-separated<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi mathvariant="normal">C</mml:mi><mml:msub><mml:mi mathvariant="normal">s</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:mi mathvariant="normal">F</mml:mi><mml:msub><mml:mi mathvariant="normal">e</mml:mi><mml:mrow><mml:mn>2</mml:mn><mml:mo>−</mml:mo><mml:mi>y</mml:mi></mml:mrow></mml:msub><mml:mi mathvariant="normal">S</mml:mi><mml:msub><mml:mi mathvariant="normal">e</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>
Cesium vacancy ordering in phase-separated Open
By simultaneously displaying magnetism and superconductivity in a single phase, the iron based superconductors provide a model system for the study of magnetism’s role in superconductivity. The class of intercalated iron selenide supercond…
View article: (CaO)(FeSe): A Layered Wide-Gap Oxychalcogenide Semiconductor
(CaO)(FeSe): A Layered Wide-Gap Oxychalcogenide Semiconductor Open
A new iron-oxychalcogenide (CaO)(FeSe) was obtained which crystallizes in the orthorhombic space group Pnma (No. 62) with a = 5.9175(12) Å, b = 3.8797(8) Å, c = 13.170(3) Å. The unique structure of (CaO)(FeSe) is built up of a quasi…
View article: Antiferromagnetic Kondo lattice in the layered compound<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mi mathvariant="normal">CePd</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mi mathvariant="normal">Bi</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub></mml:math>and comparison to the superconductor<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mi mathvariant="normal">LaPd</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mi mathvariant="normal">Bi</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub></mml:math>
Antiferromagnetic Kondo lattice in the layered compoundand comparison to the superconductor Open
ZrCuSi2-type CePd1-xBi2 crystals were obtained from excess Bi flux. Magnetic susceptibility measurements reveal that CePd1-xBi2 is a highly anisotropic antiferromagnet with transition …