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 : N. Yu. Shitsevalova (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Jang, Hoyoung,Friemel, G.,Ollivier, J.,Dukhnenko, A. V.,Shitsevalova, N. Yu.,Filipov, V. B.,Keimer, B.,Inosov, D. S. Nature Publishing Group 2014 NATURE MATERIALS Vol.13 No.7
Heavy-fermion metals exhibit a plethora of low-temperature ordering phenomena . Among these are the so-called hidden-order phases that, in contrast to conventional magnetic order, are invisible to standard neutron diffraction experiments. One of the structurally most simple hidden-order compounds, CeB<SUB>6</SUB>, has been intensively studied for an elusive phase that was attributed to the antiferroquadrupolar ordering of cerium-4f moments . As the ground state of CeB<SUB>6</SUB> is characterized by a more conventional antiferromagnetic (AFM) order , the low-temperature physics of this system has generally been assumed to be governed solely by AFM interactions between the dipolar and multipolar Ce moments . Here we overturn this established picture by observing an intense ferromagnetic (FM) low-energy collective mode that dominates the magnetic excitation spectrum of CeB<SUB>6</SUB>. Inelastic neutron-scattering data reveal that the intensity of this FM excitation significantly exceeds that of conventional spin-wave magnons emanating from the AFM wavevectors, thus placing CeB<SUB>6</SUB> much closer to a FM instability than previously anticipated. This propensity for ferromagnetism may account for much of the unexplained behaviour of CeB<SUB>6</SUB>, and should lead to a re-examination of existing theories that have so far largely neglected the role of FM interactions.
-
Transport Properties of Ho1−xLuxB12 Solid Solutions
S. Gab´ani,I. Bat’ko,M. Bat’kov´a,K. Flachbart,E. Ga˘zo,G. Prist´a˘s,I. Tak´a˘cov´a,A. V. Bogach,N. E. Sluchanko,N. Yu. Shitsevalova 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.10
Our studies of Ho1−xLuxB12 solid solutions have shown that the temperature of antiferromagnetic (AF) order in geometrically frustrated system of HoB12 (TN = 7.4 K) is linearly suppressed to zero temperature, i.e. TN →0, as lutetium concentration increases to x→xc ≈ 0.9. In this contribution,we present original results of electrical resistivity measurements on Ho1−xLuxB12 single crystalline samples with x = 0, 0.2, 0.5, 0.7, 0.9, 1 in the temperature range 0.06 - 300 K and in magnetic fields (B) up to 8 T. Complex B vs TN phase diagrams were received from precise temperature ρ(T) and field ρ(B) dependences of resistivity with several AF phases for x ≤ 0.5 pointing to a possibility of quantum critical point at xc ≈ 0.9. The scattering of conduction electrons in the AF phase and in the paramagnetic phase as well as Hall effect results are analyzed and discussed for various concentrations x, when magnetic dilution increases with the increasing content of nonmagnetic Lu ions in the Ho1−xLuxB12 system.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
