Zero magnetic field ferromagnetic resonance properties of single‐crystal YIG/GGG/YIG layers

1991 ◽  
Vol 69 (8) ◽  
pp. 6212-6214 ◽  
Author(s):  
K. Sun ◽  
P. Dorsey ◽  
C. Vittoria
Keyword(s):  
Magnetic Field ◽  
Single Crystal ◽  
Ferromagnetic Resonance ◽  
Zero Magnetic Field ◽  
Resonance Properties

scholarly journals Experimental signatures of nodeless multiband superconductivity in a $$\hbox {2H-Pd}_{0.08} \hbox {TaSe}_2$$ single crystal

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chanhee Kim ◽  
Dilip Bhoi ◽  
Yeahan Sur ◽  
Byung-Gu Jeon ◽  
Dirk Wulferding ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Single Crystal ◽  
Zero Magnetic Field ◽  
Anisotropy Ratio ◽  
Strong Temperature Dependence ◽  
Critical Fields ◽  
Band Theory ◽  
Plane Field ◽  
Low Field ◽  
Out Of Plane

AbstractIn order to understand the superconducting gap nature of a $$\hbox {2H-Pd}_{0.08} \hbox {TaSe}_2$$ 2H-Pd 0.08 TaSe 2 single crystal with $$T_{c} = 3.13 \text { K}$$ T c = 3.13 K , in-plane thermal conductivity $$\kappa $$ κ , in-plane London penetration depth $$\lambda _{\text {L}}$$ λ L , and the upper critical fields $$H_{c2}$$ H c 2 have been investigated. At zero magnetic field, it is found that no residual linear term $$\kappa _{0}/T$$ κ 0 / T exists and $$\lambda _{\text {L}}$$ λ L follows a power-law $$T^n$$ T n (T: temperature) with n = 2.66 at $$T \le \frac{1}{3}T_c$$ T ≤ 1 3 T c , supporting nodeless superconductivity. Moreover, the magnetic-field dependence of $$\kappa _{0}$$ κ 0 /T clearly shows a shoulder-like feature at a low field region. The temperature dependent $$H_{c2}$$ H c 2 curves for both in-plane and out-of-plane field directions exhibit clear upward curvatures near $$T_c$$ T c , consistent with the shape predicted by the two-band theory and the anisotropy ratio between the $$H_{c2}$$ H c 2 (T) curves exhibits strong temperature-dependence. All these results coherently suggest that $$\hbox {2H-Pd}_{0.08} \hbox {TaSe}_2$$ 2H-Pd 0.08 TaSe 2 is a nodeless, multiband superconductor.

Ferromagnetic resonance in a single crystal of iron borate and magnetic field tuning of hybrid oscillations in a composite structure with a dielectric: Experiment and theory

2015 ◽  
Vol 118 (1) ◽  
pp. 013903 ◽  
Author(s):  
M. A. Popov ◽  
I. V. Zavislyak ◽  
H. L. Chumak ◽  
M. B. Strugatsky ◽  
S. V. Yagupov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Single Crystal ◽  
Ferromagnetic Resonance ◽  
Composite Structure ◽  
Iron Borate

Apparent Poisson’s Ratio for Fe-Ga Alloy Single Crystal due to Magnetostriction

2018 ◽  
Vol 941 ◽  
pp. 879-883 ◽  
Author(s):  
Masaki Fujita ◽  
Takehito Ikeuchi ◽  
Akihiro Koyama ◽  
Muneyuki Imafuku ◽  
Shun Fujieda ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Single Crystal ◽  
Poisson’S Ratio ◽  
Axial Strain ◽  
Magnetic Domain ◽  
Strain Analysis ◽  
Poisson's Ratio ◽  
Zero Magnetic Field ◽  
Actual Behavior ◽  
X Ray Diffraction

Fe-Ga alloys are used for practical magnetostrictive materials. The understanding of mechanical properties under magnetic field is very important for their application to vibration power generation devices. Especially, Poisson’s ratio is one of key parameters because it is strongly related with the volume change of materials. In the study, we investigated actual behavior of Poisson’s ratio due to magnetostriction, instead of just the mechanical one. The sample was cube-oriented Fe-18mol%Ga single crystal disc. Static magnetic fields were applied in various directions parallel to (001). Strain values in various directions were measured by strain gauge and X-ray diffraction. And then, tri-axial strain analysis for single crystal was carried out. Theoretically, Poisson’s ratio due to magnetostriction is known to be 0.5, (volume conservative), value is close to the mechanical one, 0.45. On the other hand, we found that Poisson’s ratio exhibits anisotropic behavior despite the elastic constants are equivalent in [010] and [001]. This phenomenon is attributable to the magnetic domain structure under zero magnetic field. In this presentation, we will discuss this apparent Poisson’s ratio considering the volume strain and magnetostriction comprehensively.

Specific heat of a single crystal of YBa2Cu3O7−δ: Fluctuation effects in a bulk superconductor in zero magnetic field and in a magnetic field

1988 ◽  
Vol 153-155 ◽  
pp. 1082-1085 ◽  
Author(s):  
D.M. Ginsberg ◽  
S.E. Inderhees ◽  
M.B. Salamon ◽  
Nigel Goldenfeld ◽  
J.P. Rice ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Single Crystal ◽  
Specific Heat ◽  
Zero Magnetic Field ◽  
Bulk Superconductor ◽  
Fluctuation Effects

scholarly journals Imaging the formation and surface phase separation of the CE phase

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Haibiao Zhou ◽  
Qiyuan Feng ◽  
Yubin Hou ◽  
Masao Nakamura ◽  
Yoshinori Tokura ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Phase Transitions ◽  
Charge Ordering ◽  
Zero Magnetic Field ◽  
Ferromagnetic Phase ◽  
Emergent Properties ◽  
Orbital Ordering ◽  
Strong Electron ◽  
Antiferromagnetic Correlation ◽  
Ordering Transitions

AbstractThe CE phase is an extraordinary phase exhibiting the simultaneous spin, charge, and orbital ordering due to strong electron correlation. It is an ideal platform to investigate the role of the multiple orderings in the phase transitions and discover emergent properties. Here, we use a cryogenic high-field magnetic force microscope to image the phase transitions and properties of the CE phase in a Pr0.5Ca0.5MnO3 thin film. In a high magnetic field, we observed a clear suppression of magnetic susceptibility at the charge-ordering insulator transition temperature (TCOI), whereas, at the Néel temperature (TN), no significant change is observed. This observation favors the scenario of strong antiferromagnetic correlation developed below TCOI but raises questions about the Zener polaron paramagnetic phase picture. Besides, we discoverd a phase-separated surface state in the CE phase regime. Ferromagnetic phase domains residing at the surface already exist in zero magnetic field and show ultra-high magnetic anisotropy. Our results provide microscopic insights into the unconventional spin- and charge-ordering transitions and revealed essential attributes of the CE phase, highlighting unusual behaviors when multiple electronic orderings are involved.

Sign in / Sign up

Export Citation Format

Share Document