Detection of weak (∼0.5–300nT), low frequency (5–100Hz) magnetic fields at room temperature by kilohertz modulation of the magneto-optical hysteresis in rare earth–iron garnet films

2007 ◽  
Vol 90 (13) ◽  
pp. 132502 ◽  
Author(s):  
J. M. Hafez ◽  
J. Gao ◽  
J. G. Eden
Keyword(s):  
Rare Earth ◽  
Magnetic Fields ◽  
Room Temperature ◽  
Low Frequency ◽  
Garnet Films ◽  
Iron Garnet

scholarly journals Magnetism and spin transport in rare-earth-rich epitaxial terbium and europium iron garnet films

2018 ◽  
Vol 2 (9) ◽  
Author(s):  
Ethan R. Rosenberg ◽  
Lukáš Beran ◽  
Can O. Avci ◽  
Cyrus Zeledon ◽  
Bingqian Song ◽  
...  
Keyword(s):  
Rare Earth ◽  
Spin Transport ◽  
Garnet Films ◽  
Iron Garnet

scholarly journals Spin Seebeck effect and ballistic transport of quasi-acoustic magnons in room-temperature yttrium iron garnet films

2018 ◽  
Vol 51 (23) ◽  
pp. 234003 ◽  
Author(s):  
Timo B Noack ◽  
Halyna Yu Musiienko-Shmarova ◽  
Thomas Langner ◽  
Frank Heussner ◽  
Viktor Lauer ◽  
...  
Keyword(s):  
Yttrium Iron Garnet ◽  
Room Temperature ◽  
Ballistic Transport ◽  
Seebeck Effect ◽  
Yttrium Iron ◽  
Garnet Films ◽  
Spin Seebeck Effect ◽  
Iron Garnet

Tuning magnetization compensation and Curie temperatures in epitaxial rare earth iron garnet films

2019 ◽  
Vol 100 (21) ◽  
Author(s):  
Temuujin Bayaraa ◽  
Changsong Xu ◽  
Davis Campbell ◽  
L. Bellaiche
Keyword(s):  
Rare Earth ◽  
Garnet Films ◽  
Iron Garnet ◽  
Curie Temperatures

Elastic Constants of Single-Crystal Rare-Earth Bismuth Iron Garnet Films

2008 ◽  
Vol 47 (5) ◽  
pp. 3851-3854 ◽  
Author(s):  
Nobutomo Nakamura ◽  
Hirotsugu Ogi ◽  
Masahiko Hirao ◽  
Takashi Fukuhara ◽  
Kenichi Shiroki ◽  
...  
Keyword(s):  
Rare Earth ◽  
Single Crystal ◽  
Elastic Constants ◽  
Garnet Films ◽  
Iron Garnet

Room temperature magnetoelectric control of micromagnetic structure in iron garnet films

2008 ◽  
Vol 93 (18) ◽  
pp. 182510 ◽  
Author(s):  
A. S. Logginov ◽  
G. A. Meshkov ◽  
A. V. Nikolaev ◽  
E. P. Nikolaeva ◽  
A. P. Pyatakov ◽  
...  
Keyword(s):  
Room Temperature ◽  
Garnet Films ◽  
Iron Garnet

Patterned Garnet Films on Substrates with Ion-Beam Bombarded Micropatterns

1998 ◽  
Vol 517 ◽  
Author(s):  
Yasuyuki Okamura ◽  
Sadahiko Yamamoto
Keyword(s):  
Rare Earth ◽  
Phosphoric Acid ◽  
Ion Beam ◽  
Amorphous Film ◽  
Considerable Influence ◽  
Garnet Film ◽  
Triangular Shape ◽  
Garnet Films ◽  
Strip Pattern ◽  
Iron Garnet

AbstractWe report the selected-area epitaxy of rare-earth iron garnet crystalline and amorphous straight ridge patterns, from 4μm to 8μm in width, deposited on Gd3Ga5O12 single crystal substrates. These samples were fabricated via a sputter epitaxial method on substrates that were partially etched by ion-beam bombardment. The strip pattern direction has given the considerable influence on the crystal-graphic formation of the sidewall of the grown ridge. The ridge shapes were similar to results that have been reported for the dissolution forms of garnet crystals in phosphoric acid and the facet of garnet crystals grown from flux. Furthermore, we have successfully grown both an epitaxial garnet film onto an amorphous film and an amorphous straight ridge with a triangular shape surrounded by crystal.

Current sensing using bismuth rare-earth iron garnet films

1995 ◽  
Vol 34 (10) ◽  
pp. 1692 ◽  
Author(s):  
Michael Ko ◽  
Elsa Garmire
Keyword(s):  
Rare Earth ◽  
Current Sensing ◽  
Garnet Films ◽  
Iron Garnet

Bose–Einstein condensation of spin wave quanta at room temperature

2011 ◽  
Vol 369 (1951) ◽  
pp. 3575-3587 ◽  
Author(s):  
O. Dzyapko ◽  
V. E. Demidov ◽  
G. A. Melkov ◽  
S. O. Demokritov
Keyword(s):  
Room Temperature ◽  
Chemical Potential ◽  
Spin Waves ◽  
Einstein Condensation ◽  
Quasi Equilibrium ◽  
Magnetic Media ◽  
Bose Einstein Condensation ◽  
Garnet Films ◽  
Iron Garnet ◽  
Bose Einstein

Spin waves are delocalized excitations of magnetic media that mainly determine their magnetic dynamics and thermodynamics at temperatures far below the critical one. The quantum-mechanical counterparts of spin waves are magnons, which can be considered as a gas of weakly interacting bosonic quasi-particles. Here, we discuss the room-temperature kinetics and thermodynamics of the magnon gas in yttrium iron garnet films driven by parametric microwave pumping. We show that for high enough pumping powers, the thermalization of the driven gas results in a quasi-equilibrium state described by Bose–Einstein statistics with a non-zero chemical potential. Further increases of the pumping power cause a Bose–Einstein condensation documented by an observation of the magnon accumulation at the lowest energy level. Using the sensitivity of the Brillouin light scattering spectroscopy to the degree of coherence of the scattering magnons, we confirm the spontaneous emergence of coherence of the magnons accumulated at the bottom of the spectrum, occurring if their density exceeds a critical value.

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