CURIE TEMPERA TURE OF DILUTED MAGNETIC SEMICONDUCTORS THE INFLUENCE OF THE ANTIFERROMAGNETIC EXCHANGE INTERACTION

Tài liệu Marie Curie - Nữ bác học lừng danh nhất thế giới pptx

... lễ nhà nữ bác học cử hành nghĩa địa Sceaux Quan tài bà đặt lên quan tài ông Pierre Curie, theo ý nguyện bà gần chồng lúc sống lúc chết Bà Marie Curie nhà nữ bác học lừng danh giới khoa học Bà ... cách trị liệu chất phóng xạ, đầu năm 1922, Hàn Lâm Viện Y Học Paris bầu bà Curie làm hội viên Tháng năm đó, bà Curie trở thành nhà nữ bác học Hàn Lâm Viện Khoa Học Pháp Danh tiếng bà Marie Curie ... nhớ nhà bác học Pierre Curie, ngày 13 tháng năm 1906, Trường Đại Học Sorbonne mời bà Curie thay chồng chức vụ Giảng Sư Bà Marie Curie nữ Giáo Sư Trường Đại Học Sorbonne, Paris Bà Marie Curie trở...

Tài liệu Báo cáo khoa học: Regulation of the actin–myosin interaction by titin doc

... solution On the other hand, the acceleration of the sliding velocity (and the lower number of stops) of thin ﬁlaments could be related to a diminution of the load in the actin–myosin interface The properties ... remained in the pellet independently of the other components and the ionic strength of the mixture In the presence of ATP, the amount of bound HMM was very similar (average value of 52.5 ± 1.1%) ... within titin, we performed MALDI-TOF MS following in-gel digestion of T800 by trypsin The set of molecular weights corresponding to the resulting tryptic peptides was then examined by a search in the...

Bank of England Interest Rate Announcements and the Foreign Exchange Market ∗ doc

... process, see Bean (2001) and www.bankofengland.co.uk/monetarypolicy/ framework.htm These are published at www.bankofengland.co.uk Vol No Bank of England Interest Rate Announcements 217 Figure ... (1) where Δet is the change in the logarithm of the exchange rate at time t The mean of the exchange rate returns process, μ, the autocorrelation coeﬃcient, ρ, and the variance of the innovation, ... various interest rate futures, and deﬁne their variable of interest as the deviation of the absolute value of exchange or interest rate returns in a given ﬁve-minute period on day j from the average...

Báo cáo hóa học: " Boron and Nitrogen Doped Single walled Carbon Nanotubes as Possible Dilute Magnetic Semiconductors" doc

... (2007) 2:447–449 Table Calculated total energy of singlet and triplet state for boron and nitrogen doped single wall zig-zag and armchair carbon nanotubes Formula Type C68B2 Armchair Method Total ... C68B2 armchair single walled carbon nanotube (b) optimized structure of zig-zag C68B2 single walled carbon nanotube Methods and Results The structures at minimum energy of zig-zag (7,0) and armchair ... states/eV compared to 3.62 for the spin up state Since the boron doped tubes are hole doped this suggests that carbon nanotubes could be dilute magnetic semiconductors when incorporated into ﬁeld effect...

Market Making and Reversal on the Stock Exchange (Journal of American Statistical Association 1966) pptx

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báo cáo khoa học: " The HaDREB2 transcription factor enhances basal thermotolerance and longevity of seeds through functional interaction with HaHSFA9" docx

... overexpression of HaDREB2 and HaHSFA9: further enhancement of thermotolerance and longevity in seeds The failure to observe an effect of HaDREB2 on sHSP accumulation and thermotolerance in seeds (Figure ... but only after the conjoint overexpression in seeds of HaHSFA9 and HaDREB2 The phenotypes included enhancement of the accumulation of sHSPs (CI and CII), of basal thermotolerance, and increased ... patterns of HSFA9 proteins [1,2] would agree with the observed enhancement of thermotolerance in tobacco seeds, and the lack of functional effects in the 35S:DR2 lines The specific functional interaction...

Báo cáo y học: "The routine use of pediatric airway exchange catheter after extubation of adult patients who have undergone maxillofacial or major neck surgery: a clinical observational study" doc

... with maxillofacial trauma, 14 patients who had undergone neck surgery (5 with hugely enlarged thyroid gland or tumor and with larynx or tongue cancer), and patients who had undergone maxillofacial ... patient (a male), who had also undergone neck surgery (unilateral dissection), was intubated with difficulty using a Fasttrach (intubating laryngeal mask airway) because of anatomical abnormalities, ... mortality [3] In the study by Loudermilk and colleagues [2], the advantages of the use of a pediatric airway exchange catheter (PAEC) inserted before tracheal extubation of adult patients with a known...

Báo cáo y học: " Modulation of the virus-receptor interaction by mutations in the V5 loop of feline immunodeficiency virus (FIV) following in vivo escape from neutralising antibody" ppsx

... virus- receptor interaction by mutations in the V5 loop of feline immunodeficiency virus (FIV) following in vivo escape from neutralising antibody Retrovirology 2010, 7:38 Page 13 of 13 ... the virus- receptor interaction may not simply be a modulation of binding affinity, rather it could represent a shift in the way the Env and receptor interact The two modes of interaction may be ... derived in vivo escaped neutralising antibody by the acquisition of mutations in the V5 loop region We therefore generated chimaeric envs in which a fragment encompassing the V4 and V5 loops of the...

Structural, magnetic and transport study of DBPLD fabricated magnetic semiconductors 4

... Phys Lett 81, pp 42 12 -42 14, 2002 45 H.-J Lee, S.-Y Jeong, C.R Cho and C.-H Park, Study of diluted magnetic semiconductor: Co-doped ZnO, Appl Phys Lett 81, pp 40 20 -40 22, 2002 46 K Rode, A Anane, ... center of the bandgap, and the relative position of Fermi level and the top of the valence band, EF − Ev for Zn1-xCoxO is that EF − Ev ≈ 1.6 eV, similar to that of ZnO [25] In Fig 5- 14( b), band ... X-ray study of the structure and magnetic property of the co-doped ZnO nanoparticles prepared by thermal hydrolysis, Journal of Magnetism and Magnetic Materials, 310, pp e818–e820, 2007 42 Norton...

Structural, magnetic and transport study of DBPLD fabricated magnetic semiconductors 1

... such as Ga1-xMnxN [15 ], Ga1-xMnxAs [1] , (In,Mn)As [16 ], Cd1-xMnxTe [17 ], Zn1-xMnxO (M=TM) [18 ] and Zn1-xMnxO [19 ] Ⅱ-Ⅵ compounds semiconductor includes a variety of compounds consisting of various ... the distribution of impurities and local magnetization, and the understanding of the magnetic ordering and underlying mechanisms [67] National University of Singapore 13 CHAPTER 1: INTRODUCTION ... the magnetic spins and the spins of the band edge carrier causes the dramatic enhancement of band edge Zeeman splittings and related properties in an external magnetic field The coupling of magnetic...

Structural, magnetic and transport study of DBPLD fabricated magnetic semiconductors 2

... 120 000 (d) Co 0.015 Co 0.03 Co 0.05 Co 0.09 Co 0 .25 Co 0.41 CoO Co 2p3 /2 20000 18000 16000 Co 14000 20 000 120 00 1017 1018 1019 1 020 1 021 1 022 1 023 1 024 1 025 776 Binding Energy (eV) 778 780 7 82 ... 16000 O1 O2 120 00 O1 22 000 18000 14000 Co 0.015 Co 0.03 Co 0.05 Co 0.09 Co 0 .25 (b) 24 000 Intensity(a.u.) 26 000 20 000 18000 16000 14000 120 00 10000 10000 8000 8000 524 526 528 530 5 32 534 536 ... relationship of (0001) f //(0001) s and (10 0) f //(1 120 ) s 5.3 .2 Dependence of crystal structures of Zn1-xCoxO thin film on Co concentration 0. 521 2 Lattice constant (nm) (a) 0. 521 0 0. 520 8 0. 520 6 0. 520 4...

Structural, magnetic and transport study of DBPLD fabricated magnetic semiconductors 3

... 200 250 30 0 T (K) Fig 6 -3( a) Magnetic loop of the thin film with Co concentration of x = 0.02 measured at 30 0 K by SQUID Inset: Enlarged view of the low field region to show the presence of hysteresis ... hysteresis and remanence for the samples measured at 30 0, 100 and 30 K; (b) Hc dependence on temperature of the film with Co concentration of x = 0.02 National University of Singapore 1 03 CHAPTER ... decrease of magnetic moment per Co atom with x suggests the presence of antiferromagnetic interactions in the Zn1-xCoxO system The details of antiferromagnetic coupling mechanism between magnetic...

Fabrication and characterization of nanostructured half metals and diluted magnetic semiconductors

... FABRICATION AND CHARACTERIZATION OF NANOSTRUCTURED HALF METALS AND DILUTED MAGNETIC SEMICONDUCTORS LI HONGLIANG (M Eng., Tongji University, P R China) A THESIS SUBMITTED FOR THE DEGREE OF ... focused on the fabrication and characterization of two kinds of spintronic materials: Fe3O4 and Ge1-xMnx The former is a kind of half metal, while the latter is a type of DMS Both of them have ... D Coey and S Sanvito, Magnetic semiconductors and half- metals , J Phys D: Appl Phys 37, pp 988-993, 2004 24 S P Lewis, P B Allen and T Sasaki, “Band structure and transport properties of CrO2”,...

Room temperature ferromagnetism study of tio2 based magnetic semiconductors by pulsed laser deposition

... to magnetic properties, semiconductors can be classified as magnetic semiconductors, dilute magnetic semiconductors, and non -magnetic semiconductors in terms of the amount and distribution of magnetic ... Diluted magnetic semiconductors (DMS), alloys between nonmagnetic semiconductors and magnetic elements, are semiconductors formed by replacing a fraction of the cations in a range of compound semiconductors ... List of Tables Table 3.1 Magnetic properties of various nonmagnetic element doping systems FM, ferromagnetic; Non-FM, non-ferromagnetic 73 IX List of Figures Fig 1.1 Three types of semiconductors: ...

Ferromagnetism study of dilute magnetic semiconductors by pulsed laser deposition

... between nonmagnetic semiconductors and magnetic elements is the next generation of magnetic semiconductors [1.2] They are semiconductors formed by replacing a fraction of the cations in a range of compound ... different from magnetic semiconductors in which one of the two sub-lattices is constituted by magnetic ions The incomplete d-shell of the magnetic atoms gives rise to a variety of properties in ... a significant response by the magnetic ions in ordinary magnetic semiconductors In contrast to magnetic semiconductors, the magnetic ions in DMS respond to an applied magnetic field and change...

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