L. Bohatý
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View article: Crystal structure and absence of magnetic order in single-crystalline RuO<sub>2</sub>
Crystal structure and absence of magnetic order in single-crystalline RuO<sub>2</sub> Open
RuO 2 was considered for a long time to be a paramagnetic metal with an ideal rutile-type structure down to low temperatures, but recent studies on single-crystals claimed evidence for antiferromagnetic order and some symmetry breaking in …
View article: Cascaded Raman lasing in a lithium tetraborate (LB4) whispering gallery mode resonator
Cascaded Raman lasing in a lithium tetraborate (LB4) whispering gallery mode resonator Open
Lithium tetraborate (LB4) is a lithium borate compound and recently has shown renewed interest due to its exceptional linear and nonlinear optical properties. Its wide transparency range, spanning from 0.16$μm$ to 3.5$μm$, and low loss in …
View article: Crystal structure and absence of magnetic order in single crystalline RuO$_2$
Crystal structure and absence of magnetic order in single crystalline RuO$_2$ Open
RuO$_2$ was considered for a long time to be a paramagnetic metal with an ideal rutile-type structure down to low temperatures, but recent studies on single-crystals claimed evidence for antiferromagnetic order and some symmetry breaking i…
View article: Spin-orbital-lattice entanglement in the ideal j=1/2 compound K$_2$IrCl$_6$
Spin-orbital-lattice entanglement in the ideal j=1/2 compound K$_2$IrCl$_6$ Open
Mott insulators with spin-orbit entangled j=1/2 moments host intriguing magnetic properties. The j=1/2 wave function requires cubic symmetry, while a noncubic crystal field mixes j=1/2 and 3/2 character. Spectroscopic studies of $5d^5$ iri…
View article: Rotational phase transitions in antifluorite-type osmate and iridate compounds
Rotational phase transitions in antifluorite-type osmate and iridate compounds Open
We present temperature-dependent single-crystal diffraction results on seven antifluorite-type compounds with Me = Os or Ir: K 2 OsCl 6 , A 2 OsBr 6 with A = K, Rb, Cs and NH 4 , and K 2 Ir X 6 with X = Cl and Br. The structural …
View article: Spin-orbit coupling in a half-filled $t_{2g}$ shell: the case of $5d^3$ K$_2$ReCl$_6$
Spin-orbit coupling in a half-filled $t_{2g}$ shell: the case of $5d^3$ K$_2$ReCl$_6$ Open
The half-filled $t_{2g}$ shell of the $t_{2g}^3$ configuration usually, in LS coupling, hosts a S = 3/2 ground state with quenched orbital moment. This state is not Jahn-Teller active. Sufficiently large spin-orbit coupling $ζ$ has been pr…
View article: Two New Polar Antimony(III) Tartrates with Unusual Structural Building Units
Two New Polar Antimony(III) Tartrates with Unusual Structural Building Units Open
Large single crystals of polar tetragonal thallium antimony(III) tartrate dihydrate, Tl 2 [Sb 2 ( (+) C 4 H 2 O 6 ) 2 ]·2H 2 O, are grown. The crystal structure (s.g. P 4 1 ), which contains the binuclear complex group [Sb 2 (C 4 H 2 O 6 )…
View article: Multiferroic domain relaxation in (NH4)2[FeCl5(H2O)]
Multiferroic domain relaxation in (NH4)2[FeCl5(H2O)] Open
The molecular compound (NH4)2[FeCl5(H2O)] is a type-II multiferroic material, in which incommensurate cycloidal order directly induces ferroelectric polarization. The multiferroic domain kinetics in (NH4)2[FeCl5(H2O)] were studied by time-…
View article: Single-crystal study of the honeycomb XXZ magnet BaCo$_2$(PO$_4$)$_2$ in magnetic fields
Single-crystal study of the honeycomb XXZ magnet BaCo$_2$(PO$_4$)$_2$ in magnetic fields Open
We present a study of high-quality BaCo$_2$(PO$_4$)$_2$ single crystals via magnetization, heat-capacity, thermal-expansion and magnetostriction measurements. Sharp anomalies in the thermodynamic properties at $T_N=3.4\,$K reveal a long-ra…
View article: Interplay of magnetic order and ferroelasticity in the spin-orbit coupled antiferromagnet K$_2$ReCl$_6$
Interplay of magnetic order and ferroelasticity in the spin-orbit coupled antiferromagnet K$_2$ReCl$_6$ Open
The magnetic and structural phase transitions occurring in K$_2$ReCl$_6$ were studied by macroscopic and microscopic techniques. Structural phase transitions associated with rotations of the ReCl$_6$ octahedra lower the symmetry from cubic…
View article: CSD 1788436: Experimental Crystal Structure Determination
CSD 1788436: 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: Observation of chiral solitons in LiCuVO4
Observation of chiral solitons in LiCuVO4 Open
Quantum spin liquids represent a magnetic ground state arising in the presence of strong quantum fluctuations that preclude ordering down to zero temperature and leave clear fingerprints in the excitation spectra. While theory bears a vari…
View article: Stimulated Raman Scattering (SRS) in α‐AlOOH (Diaspore)
Stimulated Raman Scattering (SRS) in α‐AlOOH (Diaspore) Open
In single crystals of orthorhombic α‐AlOOH, known also as mineral diaspore, χ (3) ‐nonlinear lasing by stimulated Raman scattering (SRS) and Raman‐induced four‐wave mixing (RFWM) is investigated. Picosecond pumping at 1.064 µm wavelength p…
View article: Chiral Order and Multiferroic Domain Relaxation in NaFeGe$_2$O$_6$
Chiral Order and Multiferroic Domain Relaxation in NaFeGe$_2$O$_6$ Open
The magnetic structure and the multiferroic relaxation dynamics of NaFeGe$_2$O$_6$ were studied by neutron scattering on single crystals partially utilizing polarization analysis. In addition to the previously reported transitions, the inc…
View article: Observation of Unconventional Dynamics of Domain Walls in Uniaxial Ferroelectric Lead Germanate
Observation of Unconventional Dynamics of Domain Walls in Uniaxial Ferroelectric Lead Germanate Open
Application of scanning probe microscopy techniques such as piezoresponse force microscopy (PFM) opens the possibility to re‐visit the ferroelectrics previously studied by the macroscopic electrical testing methods and establish a link bet…
View article: Observation of chiral solitons in the quantum spin liquid phase of LiCuVO$_4$
Observation of chiral solitons in the quantum spin liquid phase of LiCuVO$_4$ Open
Quantum spin liquids represent a magnetic ground state arising in the presence of strong quantum fluctuations that preclude ordering down to zero temperature and leave clear fingerprints in the excitation spectra. While theory bears a vari…
View article: CCDC 1586908: Experimental Crystal Structure Determination
CCDC 1586908: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 1586909: Experimental Crystal Structure Determination
CCDC 1586909: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Cocrystals of 2-Aminopyrimidine with Boric Acid—Crystal Engineering of a Novel Nonlinear Optically (NLO) Active Crystal
Cocrystals of 2-Aminopyrimidine with Boric Acid—Crystal Engineering of a Novel Nonlinear Optically (NLO) Active Crystal Open
Crystal engineering of novel materials for nonlinear optics (NLO) based on 2-aminopyrimidine yielded two molecular cocrystals with boric acid—trigonal (P3221 space group) 2-aminopyrimidine—boric acid (3/2) and monoclinic (C2/c space group)…
View article: CCDC 1787636: Experimental Crystal Structure Determination
CCDC 1787636: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 1882806: Experimental Crystal Structure Determination
CCDC 1882806: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Domain dynamics in LiCuVO$_4$: Evidence for polarized nanoregions
Domain dynamics in LiCuVO$_4$: Evidence for polarized nanoregions Open
LiCuVO$_4$ is a model system of a 1D spin-1/2 chain that enters a planar spin-spiral ground state below its Néel temperature of 2.4 K due to competing nearest and next nearest neighbor interactions. The spin-spiral state is multiferroic wi…