Crossover Antiferro-Superparamagnetism and Related Kondo-Like Anomalies of Resistivity in Clustered Fe/Cr Multilayers

2006 ◽  
Vol 52 ◽  
pp. 75-80 ◽  
Author(s):  
V.V. Ustinov ◽  
L.N. Romashev ◽  
M.A. Milyaev ◽  
T.P. Krinitsina ◽  
A.M. Burkhanov
Keyword(s):  
Magnetic Fields ◽  
Single Crystal ◽  
Low Temperatures ◽  
Ultrahigh Vacuum ◽  
Layered Nanostructures ◽  
Superparamagnetic Properties

The magnetic and magnetoresistive properties of nanostructured Fe/Cr multilayers with ultra-thin Fe layers (the nominal Fe thickness tFe is down to 0.3 Å) have been investigated at low temperatures (down to 2 K) in magnetic fields up to 90 kOe. Nanostructures were MBE grown in ultrahigh vacuum on single crystal MgO substrates. It is shown that Fe layers in nanostructures with tFe < 2 Å are not continuous but consist of separate ferromagnetic clusters. Such cluster-layered nanostructures exhibit superparamagnetic properties and the Kondo-like behavior of resistivity.

Single crystal neutron diffraction studies of antiferromagnets at low temperatures in applied magnetic fields

1959 ◽  
Vol 20 (2-3) ◽  
pp. 180-184 ◽  
Author(s):  
W.C. Koehler ◽  
M. K. Wilkinson ◽  
J.W. Cable ◽  
E.O. Wollan
Keyword(s):  
Magnetic Fields ◽  
Neutron Diffraction ◽  
Single Crystal ◽  
Low Temperatures

AN INTERNAL FRICTION STUDY OF N-H AND O-H PAIRS IN SINGLE CRYSTAL OF NIOBIUM AT LOW TEMPERATURES

1981 ◽  
Vol 42 (C5) ◽  
pp. C5-757-C5-761 ◽  
Author(s):  
R. Hanada ◽  
M. Shinohara ◽  
Y. Sado ◽  
H. Kimura
Keyword(s):  
Internal Friction ◽  
Single Crystal ◽  
Low Temperatures ◽  
Friction Study

scholarly journals Modeling of magneto-conductivity of bismuth selenide: a topological insulator

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Yogesh Kumar ◽  
Rabia Sultana ◽  
Prince Sharma ◽  
V. P. S. Awana
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Single Crystal ◽  
Single Crystals ◽  
X Ray Diffraction ◽  
Field Range ◽  
X Ray ◽  
Bulk Carriers ◽  
Different Temperatures

AbstractWe report the magneto-conductivity analysis of Bi2Se3 single crystal at different temperatures in a magnetic field range of ± 14 T. The single crystals are grown by the self-flux method and characterized through X-ray diffraction, Scanning Electron Microscopy, and Raman Spectroscopy. The single crystals show magnetoresistance (MR%) of around 380% at a magnetic field of 14 T and a temperature of 5 K. The Hikami–Larkin–Nagaoka (HLN) equation has been used to fit the magneto-conductivity (MC) data. However, the HLN fitted curve deviates at higher magnetic fields above 1 T, suggesting that the role of surface-driven conductivity suppresses with an increasing magnetic field. This article proposes a speculative model comprising of surface-driven HLN and added quantum diffusive and bulk carriers-driven classical terms. The model successfully explains the MC of the Bi2Se3 single crystal at various temperatures (5–200 K) and applied magnetic fields (up to 14 T).

Magnetic Quantum Oscillations from Surface States of Bi Nanowires

2011 ◽  
Vol 1350 ◽  
Author(s):  
L. A. Konopko ◽  
T. E. Huber ◽  
A. A. Nikolaeva
Keyword(s):  
Single Crystal ◽  
Low Temperatures ◽  
Surface States ◽  
Charge Carriers ◽  
Quantum Oscillations ◽  
Wide Range ◽  
Spin Orbit Interactions ◽  
Conducting Tube ◽  
Magnetic Quantum Oscillations ◽  
Strong Spin

ABSTRACTIn this work, we report the results of studies of the transverse magnetoresistance (MR) of single-crystal Bi nanowires with diameter d<80 nm. The single-crystal nanowire samples were prepared by the Taylor-Ulitovsky technique. Due to the semimetal-to-semiconductor transformation and high density of surface states with strong spin-orbit interactions, the charge carriers are confined to the conducting tube made of surface states. The non monotonic changes of transverse MR that are equidistant in a direct magnetic field were observed at low temperatures in a wide range of magnetic fields up to 14 T. The period of oscillations depends on the wire diameter d as for the case of longitudinal MR. An interpretation of transverse MR oscillations is presented.

Production of Single‐Crystal Copper Films at Low Temperatures

1960 ◽  
Vol 31 (9) ◽  
pp. 1672-1674 ◽  
Author(s):  
Arthur Yelon ◽  
R. W. Hoffman
Keyword(s):  
Single Crystal ◽  
Low Temperatures ◽  
Copper Films ◽  
Single Crystal Copper
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