A study of magnetothermal and Shubnikov – de Haas oscillations in arsenic

1968 ◽  
Vol 46 (17) ◽  
pp. 1935-1943 ◽  
Author(s):  
J. Vanderkooy ◽  
W. R. Datars
Keyword(s):  
Fermi Surface ◽  
Sample Material ◽  
Effect Factors ◽  
Long Period ◽  
Period Oscillation ◽  
Shubnikov De Haas Oscillations ◽  
Haas Effect

Magnetothermal and Shubnikov – de Haas oscillations were observed in arsenic. The periods of the oscillations are in agreement with those from recent de Haas – van Alphen experiments that support the Lin–Falicov model of the arsenic Fermi surface. The ratio of oscillatory and non-oscillatory resistivities is of the magnitude predicted by Adams–Holstein theory. It is shown that, for the same sample material, the Dingle temperature of the Shubnikov – de Haas effect is larger than the corresponding temperature of the de Haas – van Alphen effect. The long-period oscillation is not observed in the Shubnikov – de Haas effect. Factors that could attenuate the long-period oscillation are considered. Variations in temperature in the magnetothermal effect are compared to calculated values determined from the amplitude of the de Haas – van Alphen torque oscillations.

scholarly journals Changes in the strength and width of the Hadley Circulation since 1871

2012 ◽  
Vol 8 (4) ◽  
pp. 1169-1175 ◽  
Author(s):  
J. Liu ◽  
M. Song ◽  
Y. Hu ◽  
X. Ren
Keyword(s):  
20Th Century ◽  
Global Climate ◽  
Hadley Circulation ◽  
Recent Change ◽  
Early 20Th Century ◽  
Greenhouse Warming ◽  
Long Period ◽  
The Past ◽  
Period Oscillation

Abstract. Recent studies demonstrate that the Hadley Circulation has intensified and expanded for the past three decades, which has important implications for subtropical societies and may lead to profound changes in global climate. However, the robustness of this intensification and expansion that should be considered when interpreting long-term changes of the Hadley Circulation is still a matter of debate. It also remains largely unknown how the Hadley Circulation has evolved over longer periods. Here, we present long-term variability of the Hadley Circulation using the 20th Century Reanalysis. It shows a slight strengthening and widening of the Hadley Circulation since the late 1970s, which is not inconsistent with recent assessments. However, over centennial timescales (1871–2008), the Hadley Circulation shows a tendency towards a more intense and narrower state. More importantly, the width of the Hadley Circulation might have not yet completed a life-cycle since 1871. The strength and width of the Hadley Circulation during the late 19th to early 20th century show strong natural variability, exceeding variability that coincides with global warming in recent decades. These findings raise the question of whether the recent change in the Hadley Circulation is primarily attributed to greenhouse warming or to a long-period oscillation of the Hadley Circulation – substantially longer than that observed in previous studies.

Fermi surface, effective masses, and Dingle temperatures ofZrTe5as derived from the Shubnikov–de Haas effect

1985 ◽  
Vol 31 (12) ◽  
pp. 7617-7623 ◽  
Author(s):  
G. N. Kamm ◽  
D. J. Gillespie ◽  
A. C. Ehrlich ◽  
T. J. Wieting ◽  
F. Levy
Keyword(s):  
Fermi Surface ◽  
Effective Masses ◽  
Haas Effect

scholarly journals THE EFFECT OF LONG PERIOD OSCILLATION IN THE STORM SURGE

2002 ◽  
Vol 18 ◽  
pp. 125-130
Author(s):  
Hiroshi YOSHIOKA ◽  
Shigeatsu SERIZAWA ◽  
Tomotsuka TAKAYAMA
Keyword(s):  
Storm Surge ◽  
Long Period ◽  
Period Oscillation

The Shubnikov – de Haas effect in dilute lead-in-bismuth alloys

1968 ◽  
Vol 46 (21) ◽  
pp. 2413-2423 ◽  
Author(s):  
On-Ting Woo ◽  
R. J. Balcombe
Keyword(s):  
Band Structure ◽  
Fermi Surface ◽  
Carrier Concentration ◽  
Fermi Energy ◽  
Dilute Alloys ◽  
Haas Effect ◽  
Effect Of Alloying

The differential Shubnikov – de Haas effect has been studied in samples of bismuth containing up to 50 parts per million of lead. The results indicate that the only effect of alloying on the band structure of bismuth is to shift the Fermi energy; the sizes of the various pieces of the Fermi surface are changed, but their shapes are not distorted. The ratio of the change in net carrier concentration to the concentration of lead atoms is found to be only 0.4, which is anomalously low, compared with values of about 1.0 found for dilute alloys of other metals in bismuth.

Shubnikov-de Haas oscillations and Fermi surface of τ-phase conductors

2003 ◽  
Vol 18 (1-3) ◽  
pp. 188-189 ◽  
Author(s):  
Takako Konoike ◽  
Ken-ichi Iwashita ◽  
Issei Nakano ◽  
Harukazu Yoshino ◽  
Takahiko Sasaki ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Shubnikov De Haas Oscillations ◽  
Phase Conductors

Field Observations and Analyses of Long-Period Oscillation in Harbours and Bays

1983 ◽  
Vol 26 (1) ◽  
pp. 39-50 ◽  
Author(s):  
Naoto Yamada ◽  
Shuji Yamamoto ◽  
Yasuhiro Hosokawa
Keyword(s):  
Field Observations ◽  
Long Period ◽  
Period Oscillation

Erratum: Fermi surface, effective masses, and Dingle temperatures of ZrTe5as derived from the Shubnikov-de Haas effect

1986 ◽  
Vol 33 (12) ◽  
pp. 8791-8791
Author(s):  
G. N. Kamm ◽  
D. J. Gillespie ◽  
A. C. Ehrlich ◽  
T. J. Wieting ◽  
F. Levy
Keyword(s):  
Fermi Surface ◽  
Effective Masses ◽  
Haas Effect
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