中文
相关论文

相关论文: Ferromagnetic Domain Structure of La0.78Ca0.22MnO3…

200 篇论文

We present studies of the magnetic domain structure of UMn$_2$Ge$_2$ single crystals using a home-built low temperature magnetic force microscope. The material has two distinct magnetic ordering temperatures, originating from the Mn and U…

We report on observation of ferroelastic domain structure in single crystals of multiferroic CaMn$_7$O$_{12}$ at room temperature. Two types of ferroelastic domain wall are found, consistent with the material's rhombohedral symmetry that is…

强关联电子 · 物理学 2015-02-05 Renliang Yuan , Lian Duan , Xinyu Du , Yuan Li

The domain structure of a MnSb$_2$Te$_4$ single crystal with a Curie temperature $T_C \approx 45~K$ was studied using the high-resolution Bitter decoration technique. Magnetotransport measurements confirm a soft ferromagnetic ordering with…

We studied the crystal and magnetic structure of the La$_{1-x}$Ca$_{x}$MnO$_{3}$ compound for $(0.11\leq x\leq 0.175)$ using stoichiometric samples. For $x<0.13$ the system's ground state is insulating canted antiferromagnetic. For $0.13\le…

强关联电子 · 物理学 2009-11-11 M. Pissas , I. Margiolaki , G. Papavassiliou , D. Stamopoulos , D. Argyriou

Neutron scattering studies on a single crystal of the highly-correlated electron system, La1-xSrxMnO3 with x~0.3, have been carried out elucidating both the spin and lattice dynamics of this metallic ferromagnet. We report a large measured…

凝聚态物理 · 物理学 2009-10-28 Michael C. Martin , G. Shirane , Y. Endoh , K. Hirota , Y. Moritomo , Y. Tokura

Magnetic domains at the surface of a ferroelectric monodomain BiFeO3 single crystal have been imaged by hard X-ray magnetic scattering. Magnetic domains up to several hundred microns in size have been observed, corresponding to cycloidal…

强关联电子 · 物理学 2013-05-27 R. D. Johnson , P. Barone , A. Bombardi , R. J. Bean , S. Picozzi , P. G. Radaelli , Y. S. Oh , S-W. Cheong , L. C. Chapon

We present a neutron diffraction study of the magnetic structure of single crystal PrO2 under applied fields of 0-6 T. As the field is increased, changes are observed in the magnetic Bragg intensities. These changes are found to be…

强关联电子 · 物理学 2009-11-10 C. H. Gardiner , A. T. Boothroyd , M. J. McKelvy , G. J. McIntyre , K. Prokes

The infrared reflectivity of a $\rm La_{0.67}Ca_{0.33}MnO_3$ single crystal is studied over a broad range of temperatures (78-340 K), magnetic fields (0-16 T), and wavenumbers (20-9000 cm$^{-1}$). The optical conductivity gradually changes…

Magnetic and electric properties of a single crystal of La0.7Ca0.3CoO3 have been experimentally studied. The system attains a ferromagnetic spontaneous moment below 170 K and exhibits a re-entrant spin-glass phase below 100 K. In the…

材料科学 · 物理学 2007-05-23 Asish K. Kundu , P. Nordblad , C. N. R. Rao

We report bulk magnetization measurements and spatially resolved measurements of magnetic domains in Co3Sn2S2 single crystals. The results indicate that a previously reported magnetic anomaly around 130 K is due to an anomalous domain wall…

材料科学 · 物理学 2022-12-16 Zihao Shen , Xiangdong Zhu , Rahim. R. Ullah , Peter Klavins , Valentin Taufour

The magnetic flux structure in the basal plane, (001), of single crystals of superconducting (R = Er) and non-superconducting (R = Tb) RNi$_2$B$_2$C was studied by high resolution Bitter decoration at temperatures below $T_c$…

超导电性 · 物理学 2009-11-13 I. S. Veschunov , L. Ya. Vinnikov , S. L. Bud'ko , P. C. Canfield

Closed-topology magnetic domains are usually observed in thin films and in an applied magnetic field. Here we report the observation of rectangular cross-section tubular ferromagnetic domains in thick single crystals of CeAgSb2 in zero…

材料科学 · 物理学 2022-02-16 Ruslan Prozorov , Sergey L. Bud'ko , Paul C. Canfield

The structural evolution of a polydomain ferroelectric Pb(Zr0.2Ti0.8)O3 film was studied by temperature dependent X-ray diffraction. Two critical temperatures were evidenced: T*=740K, corresponding to a change in the domain structure…

Magnetic flux structure on the surface of EuFe$_2$(As$\rm_{1-x}$P$\rm_x$)$_2$ single crystals with nearly optimal phosphorus doping levels $x=0.20$, and $x=0.21$ is studied by low-temperature magnetic force microscopy and decoration with…

Two ferromagnetic phases, FM1 and FM2, were first proposed to exist in LaCrGe$_3$ based on a broad maximum in the temperature derivative of resistivity resembling that of the superconducting ferromagnet UGe$_2$ where FM1 and FM2 are…

强关联电子 · 物理学 2023-05-24 R. R. Ullah , P. Klavins , X. D. Zhu , and V. Taufour

The results of a single-crystal X-ray-diffraction study of the evolution of crystal structures of VI3 with temperature with emphasis on phase transitions are presented. Some related specific-heat and magnetization data are included. The…

Single crystals of Fe$_{1/4}$TaS$_{2}$ have been studied by using magneto-optical (MO) imaging and radio-frequency (rf) magnetic susceptibility, $\chi$. Real time MO images reveal unusual, slow dynamics of dendritic domain formation, the…

强关联电子 · 物理学 2009-10-28 M. D. Vannette , S. Yeninas , E. Morosan , R. J. Cava , R. Prozorov

$\rm SrRuO_3$ is an itinerant ferromagnet with $T_c \sim 150 \rm K$. When $\rm SrRuO_3$ is cooled through $T_c$ in zero applied magnetic field, a stripe domain structure appears whose orientation is uniquely determined by the large uniaxial…

强关联电子 · 物理学 2011-06-15 L. Klein , Y. Kats , A. F. Marshall , J. W. Reiner , T. H. Geballe , M. R. Beasley , A. Kapitulnik

Surface magnetic domains of a UCoGa single crystal during magnetization/demagnetization processes in increasing/decreasing magnetic fields were investigated by means of magnetic-force-microscopy (MFM) images at low temperatures. The…

材料科学 · 物理学 2020-02-27 Petr Opletal , Klára Uhlířová , Ivo Kalabis , Vladimír Sechovský , Jan Prokleška

We studied the ferromagnetic topology in a Y$_{0.67}$Ca$_{0.33}$MnO$_3$ thin film with a combination of magnetic force microscopy and magnetization measurements. Our results show that the spin-glass like behavior, reported previously for…

强关联电子 · 物理学 2015-06-12 Jeehoon Kim , N. Haberkorn , L. Civale , P. C. Dowden , R. Movshovich
‹ 上一页 1 2 3 10 下一页 ›