Magnetic phase diagram of the nearly 2D Heisenberg ferromagnet (CH3NH3)2CuCl4 in a transverse magnetic field

2003 ◽  
Vol 267 (2) ◽  
pp. 244-247 ◽  
Author(s):  
C.C. Becerra ◽  
A. Paduan-Filho
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
Transverse Magnetic Field ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
Transverse Magnetic ◽  
Heisenberg Ferromagnet

EFFECT OF A TRANSVERSE MAGNETIC FIELD AT THE TRICRITICAL POINT IN CsCoCl32H2O

1990 ◽  
Vol 04 (06) ◽  
pp. 375-379
Author(s):  
A. PADUAN-FILHO ◽  
C. C. BECERRA
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
Magnetic Phase ◽  
Tricritical Point ◽  
Magnetic Phase Diagram ◽  
Transverse Magnetic ◽  
Ac Magnetic Susceptibility ◽  
Neutron Diffraction Data ◽  
Perpendicular Field ◽  
Good Agreement

In this letter we report the experimental investigation of the magnetic phase diagram of CsCoCl 3 2H 2 O near the tricritical point Tt in the (H‖, H⊥, T)-space. We determine the position of Tt by studying the frequency dependence of the ac magnetic susceptibility at the antiferro to paramagnetic transition. From our analysis, Tt is independent of a perpendicular field up to 20 kOe. In the (H‖, T)-plane, the tricritical point is located at Tt = 1.88 K and Ht = 2.85 kOe , in good agreement with neutron diffraction data obtained in the analogous deuterated compound.

On the magnetic phase diagram of erbium in a c axis magnetic field

1992 ◽  
Vol 4 (44) ◽  
pp. 8599-8608 ◽  
Author(s):  
D F McMorrow ◽  
D A Jehan ◽  
R A Cowley ◽  
R S Eccleston ◽  
G J McIntyre
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram

Vortex Structure: Lattice, Glass, or Liquid?

1989 ◽  
Vol 169 ◽  
Author(s):  
Robert J. Soulen ◽  
Stuart A. Wolf
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
Vortex Structure ◽  
Cuprate Superconductors ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
Type Ii ◽  
Type Ii Superconductors

AbstractRecent measurements of the dissipation in cuprate superconductors in a magnetic field have been interpreted as providing evidence for the presence of new phases in type II superconductors: flux liquids or flux glasses. We suggest that a more conventional interpretation in terms of the electrodynamics of vortices can adequately account for all the observations. Based on this model, we propose a magnetic phase diagram.

Magnetic phase diagram of NdRh2−xRuxSi2 in high magnetic field

1993 ◽  
Vol 191 (1) ◽  
pp. 159-163 ◽  
Author(s):  
V. Ivanov ◽  
L. Vinokurova ◽  
A. Szytuła ◽  
A. Zygmunt
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
High Magnetic Field ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram

Impurity-Induced Magnetic Anomalies in the Slightly Diluted Low Anisotropy A2Fe1-xInxCl5·H2O, (A=K, Rb) Antiferromagnets: An Overview

1998 ◽  
Vol 12 (18) ◽  
pp. 1781-1793 ◽  
Author(s):  
Fernando Palacio ◽  
Javier Campo ◽  
M. Carmen Morón ◽  
Armando Paduan-Filho ◽  
Carlos C. Becerra
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
Solid Solutions ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
Magnetic Behavior ◽  
Magnetic Anomalies ◽  
Small Perturbations ◽  
The Magnetic Field

The phase diagram of low anisotropy antiferromagnets contains regions where small perturbations in the structure can induce rich interesting physical phenomenology that is still to be fully understood. This paper reviews the anomalies observed in site-diluted antiferromagnets in two regions of the magnetic phase diagram: the region where the magnetic field is very low, normally less than 10 Oe, and the spin-flop region. Although the observed phenomena is quite general, the magnetic behavior of the solid solutions A 2 Fe 1-x In x Cl 5· H 2 O , (A=K, Rb) is used to exemplify such anomalies.

Magnetic‐phase diagram of a Mn0.9Co0.1P single‐crystal. Irreversible behavior in a magnetic field

1990 ◽  
Vol 67 (9) ◽  
pp. 5442-5444 ◽  
Author(s):  
C. C. Becerra ◽  
A. Zieba ◽  
N. F. Oliveira ◽  
H. F. Jellvag
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
Single Crystal ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram

scholarly journals Magnetization dependent tunneling conductance of ferromagnetic barriers

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhe Wang ◽  
Ignacio Gutiérrez-Lezama ◽  
Dumitru Dumcenco ◽  
Nicolas Ubrig ◽  
Takashi Taniguchi ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Phase Diagram ◽  
Curie Temperature ◽  
Phase Boundary ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
Spin Splitting ◽  
Tunneling Conductance ◽  
New Approach ◽  
Precise Interpretation

AbstractRecent experiments on van der Waals antiferromagnets have shown that measuring the temperature (T) and magnetic field (H) dependence of the conductance allows their magnetic phase diagram to be mapped. Similarly, experiments on ferromagnetic CrBr3 barriers enabled the Curie temperature to be determined at H = 0, but a precise interpretation of the magnetoconductance data at H ≠ 0 is conceptually more complex, because at finite H there is no well-defined phase boundary. Here we perform systematic transport measurements on CrBr3 barriers and show that the tunneling magnetoconductance depends on H and T exclusively through the magnetization M(H, T) over the entire temperature range investigated. The phenomenon is reproduced by the spin-dependent Fowler–Nordheim model for tunneling, and is a direct manifestation of the spin splitting of the CrBr3 conduction band. Our analysis unveils a new approach to probe quantitatively different properties of atomically thin ferromagnetic insulators related to their magnetization by performing simple conductance measurements.

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