http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Tsutaoka (검색결과 4 건)
- 무료
- 기관 내 무료
- 유료
-
Giant Magnetoresistance and Field-induced Phase Transitions in Tb7Rh3 Single Crystal
Takanori Tsutaoka,Koji Shimomura,Nikolai V. Baranov,Alexey V. Proshkin,Evgeny G. Gerasimov,Pavel B. Terentev 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.3
High-field magnetization and magnetoresistance measurements have been performed to investigatethe field-induced magnetic phase transitions in Tb7Rh3 single crystals. Metamagnetic transitionswere observed along the a-, b- and c-axes of the hexagonal crystal lattice in the three magneticstates at temperatures below the N´eel temperature TN = 91 K; magnetic field H - temperatureT phase diagrams were constructed for b- and c- axes. At temperatures below TN, the magneticstructure transformations under application of a magnetic field along the b-axis are observed to beaccompanied by the giant magnetoresistance effect (|Δρ/ρ| up to 65%). Magnetization curves measuredat temperatures above TN show inflection points, which may be indicative of phase transitionswithin regions with an antiferromagnetic short-range order persisting in a paramagnetic matrix.
-
Deuteration-induced Ferromagnetic Metallic Properties in R7Rh3Dx (R = Tb, Dy)
Koji Shimomura,Takanori Tsutaoka,Stanislaw M. Filipek,Ryutaro Sato 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.3
The magnetic and the electrical properties of the R7Rh3 deuterides Tb7Rh3D27 and Dy7Rh3D27have been studied by measuring the magnetization, magnetic susceptibility and electrical resistivity. Tb7Rh3D27 and Dy7Rh3D27 show a ferromagnetic property below TC = 62 K and 23.5 K, respectively;a metallic state is induced by deuteration. The deuteration-induced magnetic transitionin these compounds can be realized by a competition between the inter- and intra-layer exchangeinteractions. The deuteration-induced semimetal to metal transition can be attributed to a modifi-cation of the energy band structure produced by a lattice expansion due to protons located in theinterstitial positions and/or additional electrons originating from the dissociation of deuterium.
-
High-frequency Permeability of Fe-Co and Co Granular Composite Materials
Teruhiro Kasagi,Takanori Tsutaoka,Aiko Tsurunaga,Kenichi Hatakeyama 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.12
The relative complex permeability and permittivity spectra of Fe50Co50 (Permendur) and Cogranular composite materials containing heat-treated particles have been studied in the microwavefrequency range up to 20 GHz. Fe50Co50 granular composite materials have a larger relative permeabilityvalue than Co composites at the same particle content owing to the differences in themagnetizations and the magnetic anisotropies between Fe50Co50 and Co particles. Negative permeabilitydispersions were observed in both composites at frequencies above 6 GHz. The effect of a dcmagnetic field on the permeability spectra revealed that the permeability dispersion of Co compositescould mainly be attributed to the gyromagnetic spin resonance in the microwave range. Fromthe relative permittivity spectrum, these two metal granular composites have a dielectric propertyeven at high particle contents.
-
Magnetic Properties of a Nd7Pd3 Single Crystal
Takuya Matsushita,Koji Shimomura,Takanori Tsutaoka 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.3
Magnetization, magnetic susceptibility and electrical resistivity measurements have been carriedout for Nd7Pd3 single crystals having the Fe7Th3-type hexagonal structure with the space groupP63mc. Nd7Pd3 possesses an antiferromagnetic (AF) state at temperatures below TN = 39 K and aferromagnetic or ferrimagnetic one at temperatures below TC = 34 K. Another magnetic transitionor a magnetic structure change was found at Tt = 15.7 K. In the ferromagnetic state, Nd7Pd3 hasa relatively large magnetic anisotropy; the easy magnetization direction is the a-axis, and hard oneis the c-axis. Metamagnetic transitions were observed in the AF state along the c-axis and in thec-plane; the critical field HC increases with increasing temperature. The magnetization curve hasan inflection point even in the paramagnetic state at 45 K in the c-plane, indicating a field-inducedtransition in the region having antiferromagnetic short-range order.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
