Anderson proposed structural topology in frustrated magnets hosting novel quantum spin liquids (QSLs). The QSL state is indeed exactly derived by fractionalizing the excitation into spinless Majorana fermions a perfect two dimensional (2D) honeycomb lattice, so-called Kitaev and its experimental realisation eagerly being pursued. Here we, for first time, report lattice stacking with van der Waals (vdW) bonding high quality {\alpha}-RuCl$_3$ crystal using x-ray neutron diffractions. Even...

Abstract Adiabatic demagnetization is currently gaining strong interest in searching for alternatives to 3 He-based refrigeration techniques achieving temperatures below 2 K. The main reasons that are the recent shortage and high price of rare helium isotope He. Here we report discovery a large magnetocaloric effect intermetallic compound YbPt Sn, which allows adiabatic cooling from K down 0.2 We demonstrate this with home-made refrigerator. Other materials, example, paramagnetic salts,...

This research proposes a methodology for the selection of input variables based on eXplainable AI (XAI) energy consumption prediction. For this purpose, prediction model (R2 = 0.871; MAE 2.176; MSE 9.870) was selected by collecting data used in building university Seoul, Republic Korea. Applying XAI to results from model, were divided into three groups expectation ranking-score (Fqvar) (10 ≤ Strong, 5 Ambiguous < 10, and Weak 5), according their influence. As result, models considering...

The $f$-electron compound CeAuSb${}_{2}$, which crystallizes in the ZrCuSi${}_{2}$-type tetragonal structure, orders antiferromagnetically between 5 and 6.8 K, where antiferromagnetic transition temperature ${T}_{N}$ depends on occupancy of Au site. Here we report electrical resistivity heat capacity a high-quality crystal CeAuSb${}_{2}$ with highest for this compound. magnetic is initially suppressed pressure, but intercepted by new state above 2.1 GPa. phase shows dome shape pressure...

We report on thermodynamic, magnetization, and muon spin relaxation measurements of the strong spin-orbit coupled iridate ${\mathrm{Ba}}_{3}{\mathrm{IrTi}}_{2}{\mathrm{O}}_{9}$, which constitutes a distinct frustration motif made up mixture edge- corner-sharing triangles. In spite antiferromagnetic exchange interaction order 100 K, we find no hint for long-range magnetic down to 23 mK. The specific heat data unveil $T$-linear $T$-squared dependences at low temperatures below 1 K. At...

Abstract Commercial adiabatic demagnetisation refrigerators still employ the same hydrated salts that were first introduced over 85 years ago. The inherent limitations of these insulating magnetocalorics – poor thermal conductivity at sub-Kelvin temperatures, low entropy density, corrosiveness can be overcome by a new generation rare-earth based metallic magnetocalorics. Here, we present magnetocaloric YbNi 1.6 Sn as an attractive alternative to conventional refrigerants. retains high into...

We present the structural, magnetic, thermodynamic and transport properties of two new compounds YbPt(2)Sn YbPt(2)In. X-ray powder diffraction shows that they crystallize in different structure types, hexagonal ZrPt(2)Al cubic Heusler type, respectively. Despite quite lattice both very similar magnetic properties: a stable trivalent Yb(3+), no evidence for sizeable Kondo interaction weak exchange interactions with strength below 1 K as deduced from specific heat C(T). Broad anomalies C(T)...

Abstract An efficient and simple protocol for the Meyer–Schuster rearrangement of propargyl alcohols into α,β-unsaturated carbonyl compounds has been developed using catalytic amounts p-toluenesulfonic acid in 1,2-dichloroethane.

Abstract The Pd‐catalyzed asymmetric addition reaction of β‐keto acids to heteroatom‐substituted allene is reported. This generates β‐substituted ketones in an manner through a branch‐selective decarboxylative allylation pathway. accommodates various alkoxyallenes as well amidoallenes.

Even six years after the first discovery of superconductivity in MgCNi3, synthesis this compound form single crystals has not been very successful. Highly volatile Mg and less-reactive C are main obstacles. Now, characterization these reported (see figure), which will provide opportunities to solve quite a number longstanding controversial issues MgCNi3.

We present low-temperature specific heat of the electron-doped Ba(Fe0.9Co0.1)2As2, which does not show any indication an upturn down to 400 mK, lowest measuring temperature. The lack a Schottky-like feature at low temperatures or in magnetic fields up 9 T enables us identify enhanced quasiparticle excitations and study anisotropy linear term heat. Our results cannot be explained by single multiple isotropic superconducting gap, but are consistent with multi-gap superconductivity nodes on...

Drug repositioning is the process of finding new indications for existing drugs. Its importance has been dramatically increasing recently due to enormous increase in drug discovery cost. However, most previous molecular-centered work not able reflect end-point physiological activities drugs because inherent complexity human systems.Here, we suggest a novel computational framework make inferences alternative marketed by using electronic clinical information which reflects results drug's...

Abstract Molecular quantum magnetism involving an isolated spin state is of particular interest due to the characteristic phenomena underlying qubits or molecular spintronics for information devices, as demonstrated in magnetic metal–organic systems, so-called magnets. Here we report realized inorganic solid Ba 3 Yb 2 Zn 5 O 11 with spin–orbit coupled pseudospin-½ 3+ ions. The magnetization represents values 4 tetrahedron a total (pseudo)spin 0, 1 and 2. Inelastic neutron scattering results...

We report on measurements of the in-plane magnetic penetration depth ${\ensuremath{\lambda}}_{ab}$ in infinite-layer electron-doped high-temperature cuprate superconductor ${\text{Sr}}_{0.9}{\text{La}}_{0.1}{\text{CuO}}_{2}$ by means muon-spin rotation. The observed temperature and field dependences are consistent with presence a substantial $s$-wave component superconducting order parameter, good agreement results tunneling, specific heat, small-angle neutron scattering experiments.

We report the pressure response of charge-density-wave (CDW) and ferromagnetic (FM) phases rare-earth intermetallic SmNiC2 up to 5.5 GPa. The CDW transition temperature (T_{CDW}), which is reflected as a sharp inflection in electrical resistivity, almost independent 2.18 GPa but strongly enhanced at higher pressures, increasing from 155.7 K 2.2 279.3 Commensurate with increase T_{CDW}, first-order FM phase transition, decreases applied pressure, bifurcates into upper (T_{M1}) lower (T_c)...

We report specific heat capacity measurements on a LiFeAs single crystal at temperatures down to 400 mK and magnetic fields up 9 T. A small jump ${T}_{c}$ finite residual density of states $T=0$ K in the superconducting (SC) state indicate that there are strong unitary scatterers lead within SC gap. sublinear field dependence Sommerfeld coefficient $\ensuremath{\gamma}(H)$ is equally well fitted by both nodal d-wave gap as sign changing multiband ${s}_{\ifmmode\pm\else\textpm\fi{}}$-wave...

For the last few decades, researchers have been intrigued by multipolar ordering phenomena while looking for related quantum criticality in heavy-fermion Kondo system Ce$_{1-x}$La$_{x}$B$_6$. However, critical induced substitution level ($x$), temperature ($T$), and magnetic field ($B$) are poorly understood despite a large collection of experimental results is available. In this work, we present $T$-$B$, $x$-$T$, $x$-$B$ phase diagrams Ce$_{1-x}$La$_x$B$_6$ ($\mathbf{B}\parallel[110]$)....

The magnetic penetration depth $\ensuremath{\lambda}$ has been measured in ${\text{MgCNi}}_{3}$ single crystals using both a high-precision tunnel diode oscillator (TDO) technique and Hall probe magnetization (HPM). In striking contrast to previous measurements powders, $\ensuremath{\delta}\ensuremath{\lambda}(\text{T})$ deduced from TDO increases exponentially at low temperature, clearly showing that the superconducting gap is fully open over whole Fermi surface. An absolute value zero...

Specific heat has been measured down to 600 mK and up 8 T by highly sensitive ac microcalorimetry on MgCNi${}_{3}$ single crystals with ${T}_{c}\ensuremath{\approx}$ 7 K. Exponential decay of the electronic specific at low temperatures proved that a superconducting energy gap is fully open whole Fermi surface, in agreement our previous magnetic penetration depth measurements same crystals. The specific-heat data analysis shows consistently strong-coupling strength...

Yb(Rh_{1-x}Co_{x})_{2}Si_{2} is a model system to address two challenging problems in the field of strongly correlated electron systems. The first intriguing competition between ferromagnetic (FM) and antiferromagnetic (AFM) order when approaching magnetic quantum critical point (QCP). second occurrence along very hard crystalline electric (CEF) direction, i.e., one with smallest available moment. Here, we present detailed study evolution this from FM state moments c direction at x=0.27...

Here, we report a

CeIr$_3$Ge$_7$ is an antiferromagnetic metal with a remarkably low ordering temperature $T_{\rm N}$ = 0.63 K, while most Ce-based magnets order between 2 and 15 K. Thermodynamic transport properties as function of magnetic field or pressure do not show signatures Kondo correlations, interaction competition, frustration, had been observed in few antiferromagnets comparably lower N}$. The averaged Weiss measured below 10 K comparable to suggesting that the RKKY exchange coupling very weak this...