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相关论文: YbNi$_4$Mg: Superheavy fermion with enhanced Wilso…

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Electron Spin Resonance (ESR) can microscopically probe both conduction electrons (ce) and local moment (LM) spin systems in different materials. A ce spin resonance (CESR) is observed in metallic systems based on light elements or with…

强关联电子 · 物理学 2009-08-04 L. M. Holanda , J. M. Vargas , C. Rettori , S. Nakatsuji , K. Kuga , Z. Fisk , S. B. Oseroff , P. G. Pagliuso

The increase in the resistivity with decreasing temperature followed by a drop by more than one order of magnitude is observed on the metallic side near the zero-magnetic-field metal-insulator transition in a strongly interacting…

YbCo$_2$Ge$_4$ is a clean paramagnetic Kondo lattice which displays non-Fermi liquid behavior. We report a detailed investigation of the specific heat, magnetic Gr\"uneisen parameter ($\Gamma_{\rm mag}$) and temperature derivative of the…

强关联电子 · 物理学 2016-07-12 A. Sakai , K. Kitagawa , K. Matsubayashi , M. Iwatani , P. Gegenwart

The apparently inimical relationship between magnetism and superconductivity has come under increasing scrutiny in a wide range of material classes, where the free energy landscape conspires to bring them in close proximity to each other.…

We report low temperature measurements of the specific heat, resistivity and magnetisation of the itinerant antiferromagnet Mn3Si. The unprecedented stability of the magnetic state to high magnetic field up to 14 T inferred from the…

强关联电子 · 物理学 2009-11-07 C. Pfleiderer , J. Boeuf , H. v. Löhneysen

We used a spectroscopic microwave technique utilizing superconducting stripline resonators at frequencies between 3 GHz and 15 GHz to examine the charge dynamics of YbRh2Si2 at temperatures and magnetic fields close to the quantum critical…

Gd6FeBi2 is reported as the only one room-temperature magnet with a Curie temperature (Tc) of ca. 350 K among more than hundreds of compounds with its structural type, which makes it more attractive in potential applications. To reveal the…

应用物理 · 物理学 2020-02-18 Guoming Cui , Huan Ma , Kam Wa Wong , Chan Hung Shek , Guangcun Shan , Jiliang Zhang

NMR line shift and nuclear spin-lattice relaxation rate T_1^{-1} of 11B and 25Mg were measured in superconducting MgB_2 (T_c^{ons}=38K) structurally disordered by nuclear reactor neutrons up to the fluence of thermal neutrons $\Phi=1…

The in-plane thermal conductivity kappa(T) and electrical resistivity rho(T) of the heavy-fermion metal YbRh2Si2 were measured down to 50 mK for magnetic fields H parallel and perpendicular to the tetragonal c axis, through the field-tuned…

强关联电子 · 物理学 2015-06-17 J. -Ph. Reid , M. A. Tanatar , R. Daou , Rongwei Hu , C. Petrovic , Louis Taillefer

Inelastic neutron scattering experiments on poly crystalline sample of heavy-fermion compound YbCo$_2$Zn$_{20}$ were carried out in order to obtain microscopic insights on the ground state and its magnetic field response. At zero field at…

强关联电子 · 物理学 2015-06-04 K. Kaneko , S. Yoshiuchi , T. Takeuchi , F. Honda , R. Settai , Y. Ōnuki

e have investigated the magnetic properties of YbRu$_{2}$Ge$_{2}$ by means of magnetic susceptibility $\chi$(T), specific heat C(T) and electrical resistivity $\rho$(T) measurements performed on flux grown single crystals. The Curie-Weiss…

强关联电子 · 物理学 2009-11-11 H. S. Jeevan , Z. Hossain , C. Geibel

Thermoelectric power measurements on the heavy fermion antiferromagnet Ce(Ru0.92Rh0.08)2Si2 under magnetic field (H) show clearly that the antiferromagnetic state below the critical field Hc ~ 2.8T can be fully decoupled from the…

强关联电子 · 物理学 2014-02-25 Yo Machida , Koichi Izawa , Dai Aoki , Georg Knebel , Alexandre Pourret , Jacques Flouquet

We report the results of high-resolution dc magnetization and specific-heat measurements at very low temperatures for a single crystal \color{black} of UBe$_{13}$ in magnetic fields applied along the [001] and [111] directions, in both the…

We investigate the evolution of the heavy fermion ground state under application of a strong external magnetic field. We present a richer version of the usual hybridization mean field theory that allows for hybridization in both the singlet…

强关联电子 · 物理学 2008-04-01 S. Viola Kusminskiy , K. S. D. Beach , A. H. Castro Neto , David K. Campbell

A new ternary intermetallic compound, namely, YbMn2Sb2, has been synthesized and its magnetic and electrical transport properties have been studied in the temperature range of 2 to 300 K. This compound crystallizes in a trigonal, La2O2S…

材料科学 · 物理学 2009-11-11 R. Nirmala , S. K. Malik , A. V. Morozkin , K. G. Suresh , H. -D. Kim , J. -Y. Kim , B. -G. Park , S. -J. Oh

We report the observation of superconductivity in La3Ni4P4O2 at 2.2 K. The layer stacking in this compound results in an asymmetric distribution of charge reservoir layers around the Ni2P2 planes. The estimated Wilson ratio, Rw ~ 5,…

The first order magneto-structural transition ($T_t\simeq95$ K) and magnetocaloric effect in MnNiGe$_{0.9}$Ga$_{0.1}$ are studied via powder x-ray diffraction and magnetization measurements. Temperature dependent x-ray diffraction…

材料科学 · 物理学 2018-01-17 Pallab Bag , R. Nath

The physical properties of single-crystalline SmBe$_{13}$ with a NaZn$_{13}$-type cubic structure have been studied by electrical resistivity ($\rho$), specific heat ($C$), and magnetization ($M$) measurements in magnetic fields of up to 9…

The magnetic nature of the altermagnet candidate RuO$_2$ remains under debate. It has been recently shown from quantum oscillations and angle-resolved photoemission spectroscopy (ARPES) that the high-quality RuO$_2$ bulk single crystal is a…

Heavy fermion (HF) materials exhibit a rich array of phenomena due to the strong Kondo coupling between their localized moments and itinerant electrons. A central question in their study is to understand the interplay between magnetic order…

材料科学 · 物理学 2016-03-02 S. M. Thomas , P. F. S. Rosa , S. B. Lee , S. A. Parameswaran , Z. Fisk , J. Xia